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Merge branch 'dmiralles2009-bds_b3i_bug_fix' into next

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Carles Fernandez 2019-07-11 15:48:39 +02:00
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265
conf/gnss-sdr_BDS_B1I_GPS_L1_CA_ibyte.conf
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@ -1,265 +0,0 @@
; This is a GNSS-SDR configuration file
; The configuration API is described at https://gnss-sdr.org/docs/sp-blocks/
; You can define your own receiver and invoke it by doing
; gnss-sdr --config_file=my_GNSS_SDR_configuration.conf
;
[GNSS-SDR]
;######### GLOBAL OPTIONS ##################
;internal_fs_sps: Internal signal sampling frequency after the signal conditioning stage [samples per second].
GNSS-SDR.internal_fs_sps=10000000
Receiver.sources_count=2
;######### CONTROL_THREAD CONFIG ############
ControlThread.wait_for_flowgraph=false
;######### SIGNAL_SOURCE CONFIG ############
;# Signal Source config for GPS, Galileo signals
SignalSource0.implementation=File_Signal_Source
SignalSource0.filename=/archive/BDS3_datasets/long/20180713_211400_3.dat
SignalSource0.item_type=ibyte
SignalSource0.sampling_frequency=10000000
SignalSource0.samples=0
SignalSource0.repeat=false
SignalSource0.dump=false
SignalSource0.enable_throttle_control=false
;# Signal Source config for BDS signals
SignalSource1.implementation=File_Signal_Source
SignalSource1.filename=/archive/BDS3_datasets/long/20180713_211400_1.dat
SignalSource1.item_type=ibyte
SignalSource1.sampling_frequency=10000000
SignalSource1.samples=0
SignalSource1.repeat=false
SignalSource1.dump=false
SignalSource1.enable_throttle_control=false
;######### SIGNAL_CONDITIONER CONFIG ############
;# Signal Conditioner config for GPS, Galileo signals
SignalConditioner0.implementation=Signal_Conditioner
DataTypeAdapter0.implementation=Ibyte_To_Complex
InputFilter0.implementation=Freq_Xlating_Fir_Filter
InputFilter0.input_item_type=gr_complex
InputFilter0.output_item_type=gr_complex
InputFilter0.taps_item_type=float
InputFilter0.number_of_taps=5
InputFilter0.number_of_bands=2
InputFilter0.band1_begin=0.0
InputFilter0.band1_end=0.70
InputFilter0.band2_begin=0.80
InputFilter0.band2_end=1.0
InputFilter0.ampl1_begin=1.0
InputFilter0.ampl1_end=1.0
InputFilter0.ampl2_begin=0.0
InputFilter0.ampl2_end=0.0
InputFilter0.band1_error=1.0
InputFilter0.band2_error=1.0
InputFilter0.filter_type=bandpass
InputFilter0.grid_density=16
InputFilter0.sampling_frequency=10000000
InputFilter0.IF=420000
Resampler0.implementation=Pass_Through
Resampler0.sample_freq_in=10000000
Resampler0.sample_freq_out=10000000
Resampler0.item_type=gr_complex
;# Signal Conditioner config for BDS signals
SignalConditioner1.implementation=Signal_Conditioner
DataTypeAdapter1.implementation=Ibyte_To_Complex
InputFilter1.implementation=Freq_Xlating_Fir_Filter
InputFilter1.input_item_type=gr_complex
InputFilter1.output_item_type=gr_complex
InputFilter1.taps_item_type=float
InputFilter1.number_of_taps=5
InputFilter1.number_of_bands=2
InputFilter1.band1_begin=0.0
InputFilter1.band1_end=0.70
InputFilter1.band2_begin=0.80
InputFilter1.band2_end=1.0
InputFilter1.ampl1_begin=1.0
InputFilter1.ampl1_end=1.0
InputFilter1.ampl2_begin=0.0
InputFilter1.ampl2_end=0.0
InputFilter1.band1_error=1.0
InputFilter1.band2_error=1.0
InputFilter1.filter_type=bandpass
InputFilter1.grid_density=16
InputFilter1.sampling_frequency=10000000
InputFilter1.IF=1098000
Resampler1.implementation=Pass_Through
Resampler1.sample_freq_in=10000000
Resampler1.sample_freq_out=10000000
Resampler1.item_type=gr_complex
;######### CHANNELS GLOBAL CONFIG ############
Channels_1C.count=7
Channels_1B.count=7
Channels_B1.count=4
Channels.in_acquisition=18
;# Preparing collection for GPS satellites
Channel0.RF_channel_ID=0
Channel1.RF_channel_ID=0
Channel2.RF_channel_ID=0
Channel3.RF_channel_ID=0
Channel4.RF_channel_ID=0
Channel5.RF_channel_ID=0
Channel6.RF_channel_ID=0
Channel0.signal=1C
Channel0.satellite = 2
Channel1.signal=1C
Channel1.satellite = 5
Channel2.signal=1C
Channel2.satellite = 25
Channel3.signal=1C
Channel3.satellite = 31
Channel4.signal=1C
Channel4.satellite = 24
Channel5.signal=1C
Channel5.satellite = 6
Channel6.signal=1C
Channel6.satellite = 29
;# Preparing collection for Galileo satellites
Channel7.RF_channel_ID=0
Channel8.RF_channel_ID=0
Channel9.RF_channel_ID=0
Channel10.RF_channel_ID=0
Channel11.RF_channel_ID=0
Channel12.RF_channel_ID=0
Channel13.RF_channel_ID=0
Channel7.signal=1B
Channel7.satellite = 30
Channel8.signal=1B
Channel8.satellite = 21
Channel9.signal=1B
Channel9.satellite = 5
Channel10.signal=1B
Channel10.satellite = 3
Channel11.signal=1B
Channel11.satellite = 27
Channel12.signal=1B
Channel12.satellite = 9
Channel13.signal=1B
Channel13.satellite = 10
;# Preparing collection for BDS satellites
Channel14.RF_channel_ID=1
Channel15.RF_channel_ID=1
Channel16.RF_channel_ID=1
Channel17.RF_channel_ID=1
Channel18.RF_channel_ID=1
Channel19.RF_channel_ID=1
Channel20.RF_channel_ID=1
Channel21.RF_channel_ID=1
Channel22.RF_channel_ID=1
Channel23.RF_channel_ID=1
Channel14.signal=B1
Channel14.satellite = 29
Channel15.signal=B1
Channel15.satellite = 19
Channel16.signal=B1
Channel16.satellite = 20
Channel17.signal=B1
Channel17.satellite = 30
;######### ACQUISITION GLOBAL CONFIG ############
;# Acquisition config for BDS signals
Acquisition_B1.implementation=BEIDOU_B1I_PCPS_Acquisition
Acquisition_B1.item_type=gr_complex
Acquisition_B1.coherent_integration_time_ms=1
Acquisition_B1.threshold=0.0005
Acquisition_B1.doppler_max=15000
Acquisition_B1.doppler_step=100
Acquisition_B1.dump=false
Acquisition_B1.dump_filename=/home/dmiralles/Documents/Research/Publications/INSIDE_GNSS/bds_leg_pvt/Data/bds_b1i_acq
Acquisition_B1.blocking=false;
Acquisition_B1.use_CFAR_algorithm=true;
Acquisition_B1.bit_transition_flag = false;
;# Acquisition config for GPS signals
Acquisition_1C.implementation=GPS_L1_CA_PCPS_Acquisition
Acquisition_1C.item_type=gr_complex
Acquisition_1C.coherent_integration_time_ms=1
Acquisition_1C.threshold=0.0005
Acquisition_1C.doppler_max=15000
Acquisition_1C.doppler_step=100
Acquisition_1C.dump=true
Acquisition_1C.dump_filename=/home/dmiralles/Documents/Research/Publications/INSIDE_GNSS/bds_leg_pvt/Data/gps_l1ca_acq
Acquisition_1C.blocking=false;
Acquisition_1C.use_CFAR_algorithm=true;
Acquisition_1C.bit_transition_flag = false;
;# Acquisition config for Galileo signals
Acquisition_1B.implementation=Galileo_E1_PCPS_Ambiguous_Acquisition
Acquisition_1B.item_type=gr_complex
Acquisition_1B.coherent_integration_time_ms=4
Acquisition_1B.threshold=0.0015
Acquisition_1B.doppler_max=15000
Acquisition_1B.doppler_step=100
Acquisition_1B.dump=true
Acquisition_1B.dump_filename=/home/dmiralles/Documents/Research/Publications/INSIDE_GNSS/bds_leg_pvt/Data/gal_e1b_acq
Acquisition_1B.blocking=false;
Acquisition_1B.use_CFAR_algorithm=true;
Acquisition_1B.bit_transition_flag = false;
;######### TRACKING GLOBAL CONFIG ############
Tracking_B1.implementation=BEIDOU_B1I_DLL_PLL_Tracking
Tracking_B1.item_type=gr_complex
Tracking_B1.pll_bw_hz=25.0;
Tracking_B1.dll_bw_hz=2.50;
Tracking_B1.dump=true;
Tracking_B1.dump_filename=/home/dmiralles/Documents/Research/Publications/INSIDE_GNSS/bds_leg_pvt/Data/bds_b1i_trk_ch_
Tracking_1C.implementation=GPS_L1_CA_DLL_PLL_Tracking
Tracking_1C.item_type=gr_complex
Tracking_1C.pll_bw_hz=25.0;
Tracking_1C.dll_bw_hz=2.50;
Tracking_1C.dump=true;
Tracking_1C.dump_filename=/home/dmiralles/Documents/Research/Publications/INSIDE_GNSS/bds_leg_pvt/Data/gps_l1ca_trk_ch_
Tracking_1B.implementation=Galileo_E1_DLL_PLL_VEML_Tracking
Tracking_1B.item_type=gr_complex
Tracking_1B.pll_bw_hz=25.0;
Tracking_1B.dll_bw_hz=2.50;
Tracking_1B.dump=true;
Tracking_1B.dump_filename=/home/dmiralles/Documents/Research/Publications/INSIDE_GNSS/bds_leg_pvt/Data/gal_e1b_trk_ch_
;######### TELEMETRY DECODER GPS CONFIG ############
TelemetryDecoder_B1.implementation=BEIDOU_B1I_Telemetry_Decoder
TelemetryDecoder_B1.dump=true
TelemetryDecoder_B1.dump_filename = ./bds_tel_dec
TelemetryDecoder_1C.implementation=GPS_L1_CA_Telemetry_Decoder
TelemetryDecoder_1C.dump=true
TelemetryDecoder_1C.dump_filename=./gps_tel_dec
TelemetryDecoder_1B.implementation=Galileo_E1B_Telemetry_Decoder
TelemetryDecoder_1B.dump=false
;######### OBSERVABLES CONFIG ############
Observables.implementation=Hybrid_Observables
Observables.dump=true
Observables.dump_filename=./observables.dat
;######### PVT CONFIG ############
PVT.implementation=RTKLIB_PVT
PVT.positioning_mode=Single ; options: Single, Static, Kinematic, PPP_Static, PPP_Kinematic
PVT.iono_model=OFF ; options: OFF, Broadcast, SBAS, Iono-Free-LC, Estimate_STEC, IONEX
PVT.trop_model=Saastamoinen ; options: OFF, Saastamoinen, SBAS, Estimate_ZTD, Estimate_ZTD_Grad
PVT.output_rate_ms=100
PVT.display_rate_ms=500
PVT.dump=true
PVT.dump_filename = /home/dmiralles/Documents/Research/Publications/INSIDE_GNSS/bds_leg_pvt/Data/pvt_l1
PVT.kml_output_enabled = false;
PVT.xml_output_enabled = false;
PVT.gpx_output_enabled = false;
PVT.rinex_output_enabled = false;
PVT.rtcm_output_enabled = false;
PVT.nmea_output_enabled = false;
PVT.geojson_output_enabled = false;

2
conf/gnss-sdr_BDS_B1I_byte.conf
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@ -16,7 +16,7 @@ ControlThread.wait_for_flowgraph=false
;######### SIGNAL_SOURCE CONFIG ############
SignalSource.implementation=File_Signal_Source
SignalSource.filename=/home/dmiralles/Documents/gnss-metadata-standard/install/BdsB1IStr01.dat
SignalSource.filename=/archive/BDS3_datasets/BdsB1IStr01.dat
SignalSource.item_type=byte
SignalSource.sampling_frequency=25000000
SignalSource.samples=0

127
conf/gnss-sdr_BDS_B1I_ibyte.conf
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@ -1,127 +0,0 @@
; This is a GNSS-SDR configuration file
; The configuration API is described at https://gnss-sdr.org/docs/sp-blocks/
; You can define your own receiver and invoke it by doing
; gnss-sdr --config_file=my_GNSS_SDR_configuration.conf
;
[GNSS-SDR]
;######### GLOBAL OPTIONS ##################
;internal_fs_sps: Internal signal sampling frequency after the signal conditioning stage [samples per second].
GNSS-SDR.internal_fs_sps=10000000
;######### CONTROL_THREAD CONFIG ############
ControlThread.wait_for_flowgraph=false
;######### SIGNAL_SOURCE CONFIG ############
SignalSource.implementation=File_Signal_Source
SignalSource.filename=/archive/BDS3_datasets/long/20180713_211400_1.dat
SignalSource.item_type=ibyte
SignalSource.sampling_frequency=10000000
SignalSource.samples=0
SignalSource.repeat=false
SignalSource.dump=false
SignalSource.enable_throttle_control=false
;######### SIGNAL_CONDITIONER CONFIG ############
SignalConditioner.implementation=Signal_Conditioner
DataTypeAdapter.implementation=Ibyte_To_Complex
InputFilter.implementation=Freq_Xlating_Fir_Filter
InputFilter.input_item_type=gr_complex
InputFilter.output_item_type=gr_complex
InputFilter.taps_item_type=float
InputFilter.number_of_taps=5
InputFilter.number_of_bands=2
InputFilter.band1_begin=0.0
InputFilter.band1_end=0.70
InputFilter.band2_begin=0.80
InputFilter.band2_end=1.0
InputFilter.ampl1_begin=1.0
InputFilter.ampl1_end=1.0
InputFilter.ampl2_begin=0.0
InputFilter.ampl2_end=0.0
InputFilter.band1_error=1.0
InputFilter.band2_error=1.0
InputFilter.filter_type=bandpass
InputFilter.grid_density=16
InputFilter.sampling_frequency=10000000
InputFilter.IF=1098000
Resampler.implementation=Pass_Through
Resampler.sample_freq_in=10000000
Resampler.sample_freq_out=10000000
Resampler.item_type=gr_complex
;######### CHANNELS GLOBAL CONFIG ############
Channels_B1.count=4
Channels.in_acquisition=1
Channel.signal=B1
Channel0.satellite = 29;
Channel1.satellite = 19;
Channel2.satellite = 20;
Channel3.satellite = 30;
;Channel0.satellite = 6;
;Channel1.satellite = 8;
;Channel2.satellite = 9;
;Channel3.satellite = 13;
;Channel4.satellite = 17;
;Channel5.satellite = 1;
;Channel6.satellite = 2;
;Channel7.satellite = 3;
;Channel8.satellite = 4;
;Channel9.satellite = 5;
;######### ACQUISITION GLOBAL CONFIG ############
Acquisition_B1.implementation=BEIDOU_B1I_PCPS_Acquisition
Acquisition_B1.item_type=gr_complex
Acquisition_B1.coherent_integration_time_ms=1
Acquisition_B1.threshold=0.0004
;Acquisition_B1.pfa=0.0000001;
Acquisition_B1.doppler_max=10000
Acquisition_B1.doppler_step=50
Acquisition_B1.dump=true
Acquisition_B1.dump_filename=./bds_acq
Acquisition_B1.blocking=false;
Acquisition_B1.use_CFAR_algorithm=true;
Acquisition_B1.bit_transition_flag = false;
;######### TRACKING GLOBAL CONFIG ############
Tracking_B1.implementation=BEIDOU_B1I_DLL_PLL_Tracking
Tracking_B1.item_type=gr_complex
Tracking_B1.pll_bw_hz=25.0;
Tracking_B1.dll_bw_hz=2.50;
Tracking_B1.dump=true;
Tracking_B1.dump_filename=./epl_tracking_ch_
;######### TELEMETRY DECODER GPS CONFIG ############
TelemetryDecoder_B1.implementation=BEIDOU_B1I_Telemetry_Decoder
TelemetryDecoder_B1.dump=false
;######### OBSERVABLES CONFIG ############
Observables.implementation=Hybrid_Observables
Observables.dump=true
Observables.dump_filename=./observables.dat
;######### PVT CONFIG ############
PVT.implementation=RTKLIB_PVT
PVT.positioning_mode=Single ; options: Single, Static, Kinematic, PPP_Static, PPP_Kinematic
PVT.iono_model=OFF ; options: OFF, Broadcast, SBAS, Iono-Free-LC, Estimate_STEC, IONEX
PVT.trop_model=Saastamoinen ; options: OFF, Saastamoinen, SBAS, Estimate_ZTD, Estimate_ZTD_Grad
PVT.output_rate_ms=100
PVT.display_rate_ms=500
PVT.dump_filename=./PVT
PVT.nmea_dump_filename=./gnss_sdr_pvt.nmea;
PVT.flag_nmea_tty_port=false;
PVT.nmea_dump_devname=/dev/pts/4
PVT.flag_rtcm_server=false
PVT.flag_rtcm_tty_port=false
PVT.rtcm_dump_devname=/dev/pts/1
PVT.dump=true

5
conf/gnss-sdr_BDS_B3I_byte.conf
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@ -16,7 +16,7 @@ ControlThread.wait_for_flowgraph=false
;######### SIGNAL_SOURCE CONFIG ############
SignalSource.implementation=File_Signal_Source
SignalSource.filename=/home/dmiralles/Documents/gnss-metadata-standard/install/BdsB3IStr01.dat
SignalSource.filename=/archive/BDS3_datasets/BdsB3IStr01.dat
SignalSource.item_type=byte
SignalSource.sampling_frequency=50000000
SignalSource.samples=0
@ -93,10 +93,9 @@ Tracking_B3.dll_bw_narrow_hz=3.0;
Tracking_B3.dump=false;
Tracking_B3.dump_filename=./epl_tracking_ch_
;######### TELEMETRY DECODER GPS CONFIG ############
TelemetryDecoder_B3.implementation=BEIDOU_B3I_Telemetry_Decoder
TelemetryDecoder_B3.dump=true
TelemetryDecoder_B3.dump=false
;######### OBSERVABLES CONFIG ############

51
src/algorithms/PVT/adapters/rtklib_pvt.cc
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@ -180,18 +180,25 @@ Rtklib_Pvt::Rtklib_Pvt(ConfigurationInterface* configuration,
*
*
* Skipped previous values to avoid overlapping
* 50 | Beidou B1I
* 51 | Beidou B1I + GPS L1 C/A
* 52 | Beidou B1I + Galileo E1B
* 53 | Beidou B1I + GLONASS L1 C/A
* 54 | Beidou B1I + GPS L1 C/A + Galileo E1B
* 55 | Beidou B1I + GPS L1 C/A + GLONASS L1 C/A + Galileo E1B
* 56 | Beidou B1I + Beidou B3I
* 500 | BeiDou B1I
* 501 | BeiDou B1I + GPS L1 C/A
* 502 | BeiDou B1I + Galileo E1B
* 503 | BeiDou B1I + GLONASS L1 C/A
* 504 | BeiDou B1I + GPS L1 C/A + Galileo E1B
* 505 | BeiDou B1I + GPS L1 C/A + GLONASS L1 C/A + Galileo E1B
* 506 | BeiDou B1I + Beidou B3I
* Skipped previous values to avoid overlapping
* 60 | Beidou B3I
* 61 | Beidou B3I + GPS L2C
* 62 | Beidou B3I + GLONASS L2 C/A
* 63 | Beidou B3I + GPS L2C + GLONASS L2 C/A
* 600 | BeiDou B3I
* 601 | BeiDou B3I + GPS L2C
* 602 | BeiDou B3I + GLONASS L2 C/A
* 603 | BeiDou B3I + GPS L2C + GLONASS L2 C/A
* 604 | BeiDou B3I + GPS L1 C/A
* 605 | BeiDou B3I + Galileo E1B
* 606 | BeiDou B3I + GLONASS L1 C/A
* 607 | BeiDou B3I + GPS L1 C/A + Galileo E1B
* 608 | BeiDou B3I + GPS L1 C/A + Galileo E1B + BeiDou B1I
* 609 | BeiDou B3I + GPS L1 C/A + Galileo E1B + GLONASS L1 C/A
* 610 | BeiDou B3I + GPS L1 C/A + Galileo E1B + GLONASS L1 C/A + BeiDou B1I
*/
int gps_1C_count = configuration->property("Channels_1C.count", 0);
int gps_2S_count = configuration->property("Channels_2S.count", 0);
@ -330,48 +337,48 @@ Rtklib_Pvt::Rtklib_Pvt(ConfigurationInterface* configuration,
// BeiDou B1I Receiver
if ((gps_1C_count == 0) && (gps_2S_count == 0) && (gps_L5_count == 0) && (gal_1B_count == 0) && (gal_E5a_count == 0) && (gal_E5b_count == 0) && (glo_1G_count == 0) && (glo_2G_count == 0) && (bds_B1_count != 0) && (bds_B3_count == 0))
{
pvt_output_parameters.type_of_receiver = 50; // Beidou B1I
pvt_output_parameters.type_of_receiver = 500; // Beidou B1I
}
if ((gps_1C_count != 0) && (gps_2S_count == 0) && (gps_L5_count == 0) && (gal_1B_count == 0) && (gal_E5a_count == 0) && (gal_E5b_count == 0) && (glo_1G_count == 0) && (glo_2G_count == 0) && (bds_B1_count != 0) && (bds_B3_count == 0))
{
pvt_output_parameters.type_of_receiver = 51; // Beidou B1I + GPS L1 C/A
pvt_output_parameters.type_of_receiver = 501; // Beidou B1I + GPS L1 C/A
}
if ((gps_1C_count == 0) && (gps_2S_count == 0) && (gps_L5_count == 0) && (gal_1B_count != 0) && (gal_E5a_count == 0) && (gal_E5b_count == 0) && (glo_1G_count == 0) && (glo_2G_count == 0) && (bds_B1_count != 0) && (bds_B3_count == 0))
{
pvt_output_parameters.type_of_receiver = 52; // Beidou B1I + Galileo E1B
pvt_output_parameters.type_of_receiver = 502; // Beidou B1I + Galileo E1B
}
if ((gps_1C_count == 0) && (gps_2S_count == 0) && (gps_L5_count == 0) && (gal_1B_count == 0) && (gal_E5a_count == 0) && (gal_E5b_count == 0) && (glo_1G_count != 0) && (glo_2G_count == 0) && (bds_B1_count != 0) && (bds_B3_count == 0))
{
pvt_output_parameters.type_of_receiver = 53; // Beidou B1I + GLONASS L1 C/A
pvt_output_parameters.type_of_receiver = 503; // Beidou B1I + GLONASS L1 C/A
}
if ((gps_1C_count != 0) && (gps_2S_count == 0) && (gps_L5_count == 0) && (gal_1B_count != 0) && (gal_E5a_count == 0) && (gal_E5b_count == 0) && (glo_1G_count == 0) && (glo_2G_count == 0) && (bds_B1_count != 0) && (bds_B3_count == 0))
{
pvt_output_parameters.type_of_receiver = 54; // Beidou B1I + GPS L1 C/A + Galileo E1B
pvt_output_parameters.type_of_receiver = 504; // Beidou B1I + GPS L1 C/A + Galileo E1B
}
if ((gps_1C_count != 0) && (gps_2S_count == 0) && (gps_L5_count == 0) && (gal_1B_count != 0) && (gal_E5a_count == 0) && (gal_E5b_count == 0) && (glo_1G_count != 0) && (glo_2G_count == 0) && (bds_B1_count != 0) && (bds_B3_count == 0))
{
pvt_output_parameters.type_of_receiver = 55; // Beidou B1I + GPS L1 C/A + GLONASS L1 C/A + Galileo E1B
pvt_output_parameters.type_of_receiver = 505; // Beidou B1I + GPS L1 C/A + GLONASS L1 C/A + Galileo E1B
}
if ((gps_1C_count == 0) && (gps_2S_count == 0) && (gps_L5_count == 0) && (gal_1B_count == 0) && (gal_E5a_count == 0) && (gal_E5b_count == 0) && (glo_1G_count == 0) && (glo_2G_count == 0) && (bds_B1_count != 0) && (bds_B3_count != 0))
{
pvt_output_parameters.type_of_receiver = 56; // Beidou B1I + Beidou B3I
pvt_output_parameters.type_of_receiver = 506; // Beidou B1I + Beidou B3I
}
// BeiDou B3I Receiver
if ((gps_1C_count == 0) && (gps_2S_count == 0) && (gps_L5_count == 0) && (gal_1B_count == 0) && (gal_E5a_count == 0) && (gal_E5b_count == 0) && (glo_1G_count == 0) && (glo_2G_count == 0) && (bds_B1_count == 0) && (bds_B3_count != 0))
{
pvt_output_parameters.type_of_receiver = 60; // Beidou B3I
pvt_output_parameters.type_of_receiver = 600; // Beidou B3I
}
if ((gps_1C_count != 0) && (gps_2S_count != 0) && (gps_L5_count == 0) && (gal_1B_count == 0) && (gal_E5a_count == 0) && (gal_E5b_count == 0) && (glo_1G_count == 0) && (glo_2G_count == 0) && (bds_B1_count == 0) && (bds_B3_count != 0))
{
pvt_output_parameters.type_of_receiver = 61; // Beidou B3I + GPS L2C
pvt_output_parameters.type_of_receiver = 601; // Beidou B3I + GPS L2C
}
if ((gps_1C_count == 0) && (gps_2S_count == 0) && (gps_L5_count == 0) && (gal_1B_count != 0) && (gal_E5a_count == 0) && (gal_E5b_count == 0) && (glo_1G_count == 0) && (glo_2G_count != 0) && (bds_B1_count == 0) && (bds_B3_count != 0))
{
pvt_output_parameters.type_of_receiver = 62; // Beidou B3I + GLONASS L2 C/A
pvt_output_parameters.type_of_receiver = 602; // Beidou B3I + GLONASS L2 C/A
}
if ((gps_1C_count == 0) && (gps_2S_count != 0) && (gps_L5_count == 0) && (gal_1B_count == 0) && (gal_E5a_count == 0) && (gal_E5b_count == 0) && (glo_1G_count != 0) && (glo_2G_count != 0) && (bds_B1_count == 0) && (bds_B3_count != 0))
{
pvt_output_parameters.type_of_receiver = 63; // Beidou B3I + GPS L2C + GLONASS L2 C/A
pvt_output_parameters.type_of_receiver = 603; // Beidou B3I + GPS L2C + GLONASS L2 C/A
}
// RTKLIB PVT solver options

92
src/algorithms/PVT/gnuradio_blocks/rtklib_pvt_gs.cc
View File

@ -2178,7 +2178,7 @@ int rtklib_pvt_gs::work(int noutput_items, gr_vector_const_void_star& input_item
b_rinex_header_written = true; // do not write header anymore
}
break;
case 50: // BDS B1I only
case 500: // BDS B1I only
if (beidou_dnav_ephemeris_iter != d_pvt_solver->beidou_dnav_ephemeris_map.cend())
{
rp->rinex_obs_header(rp->obsFile, beidou_dnav_ephemeris_iter->second, d_rx_time, "B1");
@ -2188,7 +2188,68 @@ int rtklib_pvt_gs::work(int noutput_items, gr_vector_const_void_star& input_item
}
break;
case 60: // BDS B1I only
case 501: // BeiDou B1I + GPS L1 C/A
if ((gps_ephemeris_iter != d_pvt_solver->gps_ephemeris_map.cend()) and (beidou_dnav_ephemeris_iter != d_pvt_solver->beidou_dnav_ephemeris_map.cend()))
{
std::string bds_signal("B1");
//rp->rinex_obs_header(rp->obsFile, gps_ephemeris_iter->second, beidou_dnav_ephemeris_iter->second, d_rx_time, bds_signal);
//rp->rinex_nav_header(rp->navMixFile, d_pvt_solver->gps_iono, d_pvt_solver->gps_utc_model, gps_ephemeris_iter->second, d_pvt_solver->beidou_dnav_iono, d_pvt_solver->beidou_dnav_utc_model);
b_rinex_header_written = true; // do not write header anymore
}
break;
case 502: // BeiDou B1I + Galileo E1B
if ((galileo_ephemeris_iter != d_pvt_solver->galileo_ephemeris_map.cend()) and (beidou_dnav_ephemeris_iter != d_pvt_solver->beidou_dnav_ephemeris_map.cend()))
{
std::string bds_signal("B1");
std::string gal_signal("1B");
//rp->rinex_obs_header(rp->obsFile, galileo_ephemeris_iter->second, beidou_dnav_ephemeris_iter->second, d_rx_time, gal_signal, bds_signal);
//rp->rinex_nav_header(rp->navMixFile, d_pvt_solver->galileo_iono, d_pvt_solver->galileo_utc_model, d_pvt_solver->beidou_dnav_iono, d_pvt_solver->beidou_dnav_utc_model);
b_rinex_header_written = true; // do not write header anymore
}
break;
case 503: // BeiDou B1I + GLONASS L1 C/A
if (beidou_dnav_ephemeris_iter != d_pvt_solver->beidou_dnav_ephemeris_map.cend())
{
//rp->rinex_obs_header(rp->obsFile, beidou_dnav_ephemeris_iter->second, d_rx_time, "B1");
//rp->rinex_nav_header(rp->navFile, d_pvt_solver->beidou_dnav_iono, d_pvt_solver->beidou_dnav_utc_model);
//rp->log_rinex_nav(rp->navFile, d_pvt_solver->beidou_dnav_ephemeris_map);
b_rinex_header_written = true; // do not write header anymore
}
break;
case 504: // BeiDou B1I + GPS L1 C/A + Galileo E1B
if (beidou_dnav_ephemeris_iter != d_pvt_solver->beidou_dnav_ephemeris_map.cend())
{
//rp->rinex_obs_header(rp->obsFile, beidou_dnav_ephemeris_iter->second, d_rx_time, "B1");
//rp->rinex_nav_header(rp->navFile, d_pvt_solver->beidou_dnav_iono, d_pvt_solver->beidou_dnav_utc_model);
//rp->log_rinex_nav(rp->navFile, d_pvt_solver->beidou_dnav_ephemeris_map);
b_rinex_header_written = true; // do not write header anymore
}
break;
case 505: // BeiDou B1I + GPS L1 C/A + GLONASS L1 C/A + Galileo E1B
if (beidou_dnav_ephemeris_iter != d_pvt_solver->beidou_dnav_ephemeris_map.cend())
{
//rp->rinex_obs_header(rp->obsFile, beidou_dnav_ephemeris_iter->second, d_rx_time, "B1");
//rp->rinex_nav_header(rp->navFile, d_pvt_solver->beidou_dnav_iono, d_pvt_solver->beidou_dnav_utc_model);
//rp->log_rinex_nav(rp->navFile, d_pvt_solver->beidou_dnav_ephemeris_map);
b_rinex_header_written = true; // do not write header anymore
}
break;
case 506: // BeiDou B1I + Beidou B3I
if (beidou_dnav_ephemeris_iter != d_pvt_solver->beidou_dnav_ephemeris_map.cend())
{
//rp->rinex_obs_header(rp->obsFile, beidou_dnav_ephemeris_iter->second, d_rx_time, "B1");
//rp->rinex_nav_header(rp->navFile, d_pvt_solver->beidou_dnav_iono, d_pvt_solver->beidou_dnav_utc_model);
//rp->log_rinex_nav(rp->navFile, d_pvt_solver->beidou_dnav_ephemeris_map);
b_rinex_header_written = true; // do not write header anymore
}
break;
case 600: // BDS B3I only
if (beidou_dnav_ephemeris_iter != d_pvt_solver->beidou_dnav_ephemeris_map.cend())
{
rp->rinex_obs_header(rp->obsFile, beidou_dnav_ephemeris_iter->second, d_rx_time, "B3");
@ -2196,6 +2257,33 @@ int rtklib_pvt_gs::work(int noutput_items, gr_vector_const_void_star& input_item
b_rinex_header_written = true; // do not write header anymore
}
break;
case 601: // BeiDou B3I + GPS L2C
if (beidou_dnav_ephemeris_iter != d_pvt_solver->beidou_dnav_ephemeris_map.cend())
{
rp->rinex_obs_header(rp->obsFile, beidou_dnav_ephemeris_iter->second, d_rx_time, "B3");
//rp->rinex_nav_header(rp->navFile, d_pvt_solver->beidou_dnav_iono, d_pvt_solver->beidou_dnav_utc_model);
b_rinex_header_written = true; // do not write header anymore
}
break;
case 602: // BeiDou B3I + GLONASS L2 C/A
if (beidou_dnav_ephemeris_iter != d_pvt_solver->beidou_dnav_ephemeris_map.cend())
{
rp->rinex_obs_header(rp->obsFile, beidou_dnav_ephemeris_iter->second, d_rx_time, "B3");
//rp->rinex_nav_header(rp->navFile, d_pvt_solver->beidou_dnav_iono, d_pvt_solver->beidou_dnav_utc_model);
b_rinex_header_written = true; // do not write header anymore
}
break;
case 603: // BeiDou B3I + GPS L2C + GLONASS L2 C/A
if (beidou_dnav_ephemeris_iter != d_pvt_solver->beidou_dnav_ephemeris_map.cend())
{
rp->rinex_obs_header(rp->obsFile, beidou_dnav_ephemeris_iter->second, d_rx_time, "B3");
//rp->rinex_nav_header(rp->navFile, d_pvt_solver->beidou_dnav_iono, d_pvt_solver->beidou_dnav_utc_model);
b_rinex_header_written = true; // do not write header anymore
}
break;
default:
break;

536
src/algorithms/PVT/libs/rinex_printer.cc
View File

@ -29,7 +29,7 @@
*/
#include "rinex_printer.h"
#include "Beidou_B1I.h"
#include "Beidou_DNAV.h"
#include "GLONASS_L1_L2_CA.h"
#include "GPS_L1_CA.h"
#include "Galileo_E1.h"
@ -1787,7 +1787,6 @@ void Rinex_Printer::rinex_nav_header(std::fstream& out, const Beidou_Dnav_Iono&
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(iono.d_alpha3, 10, 2), 12);
line += std::string(7, ' ');
line += Rinex_Printer::leftJustify("IONOSPHERIC CORR", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
@ -1801,7 +1800,6 @@ void Rinex_Printer::rinex_nav_header(std::fstream& out, const Beidou_Dnav_Iono&
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(iono.d_beta3, 10, 2), 12);
line += std::string(7, ' ');
line += Rinex_Printer::leftJustify("IONOSPHERIC CORR", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
@ -1812,7 +1810,6 @@ void Rinex_Printer::rinex_nav_header(std::fstream& out, const Beidou_Dnav_Iono&
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(utc_model.d_A1_UTC, 15, 2), 16);
line += std::string(22, ' ');
line += Rinex_Printer::leftJustify("TIME SYSTEM CORR", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
@ -1837,6 +1834,535 @@ void Rinex_Printer::rinex_nav_header(std::fstream& out, const Beidou_Dnav_Iono&
}
void Rinex_Printer::rinex_nav_header(std::fstream& out, const Gps_Iono& gps_iono, const Gps_Utc_Model& gps_utc_model, const Gps_Ephemeris& gps_eph, const Beidou_Dnav_Iono& bds_dnav_iono, const Beidou_Dnav_Utc_Model& bds_dnav_utc_model)
{
std::string line;
// -------- Line 1
line = std::string(5, ' ');
line += stringVersion;
line += std::string(11, ' ');
line += std::string("N: GNSS NAV DATA");
line += std::string(4, ' ');
line += std::string("M: MIXED");
line += std::string(12, ' ');
line += std::string("RINEX VERSION / TYPE");
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line 2
line.clear();
line += Rinex_Printer::getLocalTime();
line += std::string("PGM / RUN BY / DATE");
line += std::string(1, ' ');
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line COMMENT
line.clear();
line += Rinex_Printer::leftJustify("GNSS NAVIGATION MESSAGE FILE GENERATED BY GNSS-SDR", 60);
line += Rinex_Printer::leftJustify("COMMENT", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line COMMENT
line.clear();
std::string gnss_sdr_version(GNSS_SDR_VERSION);
line += "GNSS-SDR VERSION ";
line += Rinex_Printer::leftJustify(gnss_sdr_version, 43);
line += Rinex_Printer::leftJustify("COMMENT", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line COMMENT
line.clear();
line += Rinex_Printer::leftJustify("See https://gnss-sdr.org", 60);
line += Rinex_Printer::leftJustify("COMMENT", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line ionospheric info 1, only version 3 supported
line.clear();
line += std::string("BDSA");
line += std::string(1, ' ');
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_iono.d_alpha0, 10, 2), 12);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_iono.d_alpha1, 10, 2), 12);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_iono.d_alpha2, 10, 2), 12);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_iono.d_alpha3, 10, 2), 12);
line += std::string(7, ' ');
line += Rinex_Printer::leftJustify("IONOSPHERIC CORR", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line ionospheric info 2
line.clear();
line += std::string("BDSB");
line += std::string(1, ' ');
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_iono.d_beta0, 10, 2), 12);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_iono.d_beta1, 10, 2), 12);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_iono.d_beta2, 10, 2), 12);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_iono.d_beta3, 10, 2), 12);
line += std::string(7, ' ');
line += Rinex_Printer::leftJustify("IONOSPHERIC CORR", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line ionospheric info 2
line.clear();
line += std::string("GPSA");
line += std::string(1, ' ');
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(gps_iono.d_alpha0, 10, 2), 12);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(gps_iono.d_alpha1, 10, 2), 12);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(gps_iono.d_alpha2, 10, 2), 12);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(gps_iono.d_alpha3, 10, 2), 12);
line += std::string(7, ' ');
line += Rinex_Printer::leftJustify("IONOSPHERIC CORR", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line 5 system time correction
line.clear();
line += std::string("BDUT");
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_utc_model.d_A0_UTC, 16, 2), 18);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_utc_model.d_A1_UTC, 15, 2), 16);
line += std::string(22, ' ');
line += Rinex_Printer::leftJustify("TIME SYSTEM CORR", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line system time correction 3
line.clear();
line += std::string("GPUT");
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(gps_utc_model.d_A0, 16, 2), 18);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(gps_utc_model.d_A1, 15, 2), 16);
line += Rinex_Printer::rightJustify(std::to_string(gps_utc_model.d_t_OT), 7);
if (gps_eph.i_GPS_week < 512)
{
if (gps_utc_model.i_WN_T == 0)
{
line += Rinex_Printer::rightJustify(std::to_string(gps_eph.i_GPS_week + 2048), 5); // valid from 2019 to 2029
}
else
{
line += Rinex_Printer::rightJustify(std::to_string(gps_utc_model.i_WN_T + (gps_eph.i_GPS_week / 256) * 256 + 2048), 5); // valid from 2019 to 2029
}
}
else
{
if (gps_utc_model.i_WN_T == 0)
{
line += Rinex_Printer::rightJustify(std::to_string(gps_eph.i_GPS_week + 1024), 5); // valid from 2009 to 2019
}
else
{
line += Rinex_Printer::rightJustify(std::to_string(gps_utc_model.i_WN_T + (gps_eph.i_GPS_week / 256) * 256 + 1024), 5); // valid from 2009 to 2019
}
}
line += std::string(10, ' ');
line += Rinex_Printer::leftJustify("TIME SYSTEM CORR", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line 6 leap seconds
// For leap second information, see http://www.endruntechnologies.com/leap.htm
line.clear();
line += Rinex_Printer::rightJustify(std::to_string(gps_utc_model.d_DeltaT_LS), 6);
line += Rinex_Printer::rightJustify(std::to_string(gps_utc_model.d_DeltaT_LSF), 6);
line += Rinex_Printer::rightJustify(std::to_string(gps_utc_model.i_WN_LSF), 6);
line += Rinex_Printer::rightJustify(std::to_string(gps_utc_model.i_DN), 6);
line += std::string(36, ' ');
line += Rinex_Printer::leftJustify("LEAP SECONDS", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- End of Header
line.clear();
line += std::string(60, ' ');
line += Rinex_Printer::leftJustify("END OF HEADER", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
}
void Rinex_Printer::rinex_nav_header(std::fstream& out, const Gps_CNAV_Iono& gps_cnav_iono, const Gps_CNAV_Utc_Model& gps_cnav_utc_model, const Beidou_Dnav_Iono& bds_dnav_iono, const Beidou_Dnav_Utc_Model& bds_dnav_utc_model)
{
std::string line;
stringVersion = "3.02";
version = 3;
// -------- Line 1
line = std::string(5, ' ');
line += stringVersion;
line += std::string(11, ' ');
line += std::string("N: GNSS NAV DATA");
line += std::string(4, ' ');
line += std::string("M: MIXED");
line += std::string(12, ' ');
line += std::string("RINEX VERSION / TYPE");
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line 2
line.clear();
line += Rinex_Printer::getLocalTime();
line += std::string("PGM / RUN BY / DATE");
line += std::string(1, ' ');
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line COMMENT
line.clear();
line += Rinex_Printer::leftJustify("GNSS NAVIGATION MESSAGE FILE GENERATED BY GNSS-SDR", 60);
line += Rinex_Printer::leftJustify("COMMENT", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line COMMENT
line.clear();
std::string gnss_sdr_version(GNSS_SDR_VERSION);
line += "GNSS-SDR VERSION ";
line += Rinex_Printer::leftJustify(gnss_sdr_version, 43);
line += Rinex_Printer::leftJustify("COMMENT", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line COMMENT
line.clear();
line += Rinex_Printer::leftJustify("See https://gnss-sdr.org", 60);
line += Rinex_Printer::leftJustify("COMMENT", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line ionospheric info 1, only version 3 supported
line.clear();
line += std::string("BDSA");
line += std::string(1, ' ');
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_iono.d_alpha0, 10, 2), 12);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_iono.d_alpha1, 10, 2), 12);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_iono.d_alpha2, 10, 2), 12);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_iono.d_alpha3, 10, 2), 12);
line += std::string(7, ' ');
line += Rinex_Printer::leftJustify("IONOSPHERIC CORR", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line ionospheric info 2
line.clear();
line += std::string("BDSB");
line += std::string(1, ' ');
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_iono.d_beta0, 10, 2), 12);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_iono.d_beta1, 10, 2), 12);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_iono.d_beta2, 10, 2), 12);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_iono.d_beta3, 10, 2), 12);
line += std::string(7, ' ');
line += Rinex_Printer::leftJustify("IONOSPHERIC CORR", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line ionospheric info 1
line.clear();
line += std::string("GPSA");
line += std::string(1, ' ');
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(gps_cnav_iono.d_alpha0, 10, 2), 12);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(gps_cnav_iono.d_alpha1, 10, 2), 12);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(gps_cnav_iono.d_alpha2, 10, 2), 12);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(gps_cnav_iono.d_alpha3, 10, 2), 12);
line += std::string(7, ' ');
line += Rinex_Printer::leftJustify("IONOSPHERIC CORR", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line 5 system time correction
line.clear();
line += std::string("BDUT");
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_utc_model.d_A0_UTC, 16, 2), 18);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_utc_model.d_A1_UTC, 15, 2), 16);
line += std::string(22, ' ');
line += Rinex_Printer::leftJustify("TIME SYSTEM CORR", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line system time correction 3
line.clear();
line += std::string("GPUT");
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(gps_cnav_utc_model.d_A0, 16, 2), 18);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(gps_cnav_utc_model.d_A1, 15, 2), 16);
line += Rinex_Printer::rightJustify(std::to_string(gps_cnav_utc_model.d_t_OT), 7);
line += Rinex_Printer::rightJustify(std::to_string(gps_cnav_utc_model.i_WN_T), 5);
line += std::string(10, ' ');
line += Rinex_Printer::leftJustify("TIME SYSTEM CORR", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line 6 leap seconds
// For leap second information, see http://www.endruntechnologies.com/leap.htm
line.clear();
line += Rinex_Printer::rightJustify(std::to_string(gps_cnav_utc_model.d_DeltaT_LS), 6);
line += Rinex_Printer::rightJustify(std::to_string(gps_cnav_utc_model.d_DeltaT_LSF), 6);
line += Rinex_Printer::rightJustify(std::to_string(gps_cnav_utc_model.i_WN_LSF), 6);
line += Rinex_Printer::rightJustify(std::to_string(gps_cnav_utc_model.i_DN), 6);
line += std::string(36, ' ');
line += Rinex_Printer::leftJustify("LEAP SECONDS", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- End of Header
line.clear();
line += std::string(60, ' ');
line += Rinex_Printer::leftJustify("END OF HEADER", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
}
void Rinex_Printer::rinex_nav_header(std::fstream& out, const Glonass_Gnav_Utc_Model& glo_gnav_utc_model, const Beidou_Dnav_Iono& bds_dnav_iono, const Beidou_Dnav_Utc_Model& bds_dnav_utc_model)
{
std::string line;
// -------- Line 1
line = std::string(5, ' ');
line += stringVersion;
line += std::string(11, ' ');
line += std::string("N: GNSS NAV DATA");
line += std::string(4, ' ');
line += std::string("M: MIXED");
line += std::string(12, ' ');
line += std::string("RINEX VERSION / TYPE");
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line 2
line.clear();
line += Rinex_Printer::getLocalTime();
line += std::string("PGM / RUN BY / DATE");
line += std::string(1, ' ');
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line COMMENT
line.clear();
line += Rinex_Printer::leftJustify("GNSS NAVIGATION MESSAGE FILE GENERATED BY GNSS-SDR", 60);
line += Rinex_Printer::leftJustify("COMMENT", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line COMMENT
line.clear();
std::string gnss_sdr_version(GNSS_SDR_VERSION);
line += "GNSS-SDR VERSION ";
line += Rinex_Printer::leftJustify(gnss_sdr_version, 43);
line += Rinex_Printer::leftJustify("COMMENT", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line COMMENT
line.clear();
line += Rinex_Printer::leftJustify("See https://gnss-sdr.org", 60);
line += Rinex_Printer::leftJustify("COMMENT", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line ionospheric info 1, only version 3 supported
line.clear();
line += std::string("BDSA");
line += std::string(1, ' ');
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_iono.d_alpha0, 10, 2), 12);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_iono.d_alpha1, 10, 2), 12);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_iono.d_alpha2, 10, 2), 12);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_iono.d_alpha3, 10, 2), 12);
line += std::string(7, ' ');
line += Rinex_Printer::leftJustify("IONOSPHERIC CORR", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line ionospheric info 2
line.clear();
line += std::string("BDSB");
line += std::string(1, ' ');
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_iono.d_beta0, 10, 2), 12);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_iono.d_beta1, 10, 2), 12);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_iono.d_beta2, 10, 2), 12);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_iono.d_beta3, 10, 2), 12);
line += std::string(7, ' ');
line += Rinex_Printer::leftJustify("IONOSPHERIC CORR", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line 5 system time correction
line.clear();
line += std::string("BDUT");
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_utc_model.d_A0_UTC, 16, 2), 18);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_utc_model.d_A1_UTC, 15, 2), 16);
line += std::string(22, ' ');
line += Rinex_Printer::leftJustify("TIME SYSTEM CORR", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line system time correction 1
line.clear();
line += std::string("GLUT");
line += std::string(1, ' ');
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(glo_gnav_utc_model.d_tau_c, 16, 2), 17);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(0.0, 15, 2), 16);
line += Rinex_Printer::rightJustify(std::to_string(0.0), 7);
line += Rinex_Printer::rightJustify(std::to_string(0.0), 5);
line += std::string(10, ' ');
line += Rinex_Printer::leftJustify("TIME SYSTEM CORR", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line 6 leap seconds
// For leap second information, see http://www.endruntechnologies.com/leap.htm
line.clear();
line += Rinex_Printer::rightJustify(std::to_string(bds_dnav_utc_model.d_DeltaT_LS), 6);
line += Rinex_Printer::rightJustify(std::to_string(bds_dnav_utc_model.d_DeltaT_LSF), 6);
line += Rinex_Printer::rightJustify(std::to_string(bds_dnav_utc_model.i_WN_LSF), 6);
line += Rinex_Printer::rightJustify(std::to_string(bds_dnav_utc_model.i_DN), 6);
line += std::string(36, ' ');
line += Rinex_Printer::leftJustify("LEAP SECONDS", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- End of Header
line.clear();
line += std::string(60, ' ');
line += Rinex_Printer::leftJustify("END OF HEADER", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
}
void Rinex_Printer::rinex_nav_header(std::fstream& out, const Galileo_Iono& galileo_iono, const Galileo_Utc_Model& galileo_utc_model, const Beidou_Dnav_Iono& bds_dnav_iono, const Beidou_Dnav_Utc_Model& bds_dnav_utc_model)
{
std::string line;
// -------- Line 1
line = std::string(5, ' ');
line += stringVersion;
line += std::string(11, ' ');
line += std::string("N: GNSS NAV DATA");
line += std::string(4, ' ');
line += std::string("M: MIXED");
line += std::string(12, ' ');
line += std::string("RINEX VERSION / TYPE");
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line 2
line.clear();
line += Rinex_Printer::getLocalTime();
line += std::string("PGM / RUN BY / DATE");
line += std::string(1, ' ');
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line COMMENT
line.clear();
line += Rinex_Printer::leftJustify("GNSS NAVIGATION MESSAGE FILE GENERATED BY GNSS-SDR", 60);
line += Rinex_Printer::leftJustify("COMMENT", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line COMMENT
line.clear();
std::string gnss_sdr_version(GNSS_SDR_VERSION);
line += "GNSS-SDR VERSION ";
line += Rinex_Printer::leftJustify(gnss_sdr_version, 43);
line += Rinex_Printer::leftJustify("COMMENT", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line COMMENT
line.clear();
line += Rinex_Printer::leftJustify("See https://gnss-sdr.org", 60);
line += Rinex_Printer::leftJustify("COMMENT", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line ionospheric info 1
line.clear();
line += std::string("GAL ");
line += std::string(1, ' ');
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(galileo_iono.ai0_5, 10, 2), 12);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(galileo_iono.ai1_5, 10, 2), 12);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(galileo_iono.ai2_5, 10, 2), 12);
double zero = 0.0;
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(zero, 10, 2), 12);
line += std::string(7, ' ');
line += Rinex_Printer::leftJustify("IONOSPHERIC CORR", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line ionospheric info 1, only version 3 supported
line.clear();
line += std::string("BDSA");
line += std::string(1, ' ');
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_iono.d_alpha0, 10, 2), 12);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_iono.d_alpha1, 10, 2), 12);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_iono.d_alpha2, 10, 2), 12);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_iono.d_alpha3, 10, 2), 12);
line += std::string(7, ' ');
line += Rinex_Printer::leftJustify("IONOSPHERIC CORR", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line ionospheric info 2
line.clear();
line += std::string("BDSB");
line += std::string(1, ' ');
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_iono.d_beta0, 10, 2), 12);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_iono.d_beta1, 10, 2), 12);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_iono.d_beta2, 10, 2), 12);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_iono.d_beta3, 10, 2), 12);
line += std::string(7, ' ');
line += Rinex_Printer::leftJustify("IONOSPHERIC CORR", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line system time correction
line.clear();
line += std::string("GAUT");
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(galileo_utc_model.A0_6, 16, 2), 18);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(galileo_utc_model.A1_6, 15, 2), 16);
line += Rinex_Printer::rightJustify(std::to_string(galileo_utc_model.t0t_6), 7);
line += Rinex_Printer::rightJustify(std::to_string(galileo_utc_model.WNot_6), 5);
line += std::string(10, ' ');
line += Rinex_Printer::leftJustify("TIME SYSTEM CORR", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line system time correction 1
// -------- Line 5 system time correction
line.clear();
line += std::string("BDUT");
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_utc_model.d_A0_UTC, 16, 2), 18);
line += Rinex_Printer::rightJustify(Rinex_Printer::doub2for(bds_dnav_utc_model.d_A1_UTC, 15, 2), 16);
line += std::string(22, ' ');
line += Rinex_Printer::leftJustify("TIME SYSTEM CORR", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- Line 6 leap seconds
// For leap second information, see http://www.endruntechnologies.com/leap.htm
line.clear();
line += Rinex_Printer::rightJustify(std::to_string(galileo_utc_model.Delta_tLS_6), 6);
line += Rinex_Printer::rightJustify(std::to_string(galileo_utc_model.Delta_tLSF_6), 6);
line += Rinex_Printer::rightJustify(std::to_string(galileo_utc_model.WN_LSF_6), 6);
line += Rinex_Printer::rightJustify(std::to_string(galileo_utc_model.DN_6), 6);
line += std::string(36, ' ');
line += Rinex_Printer::leftJustify("LEAP SECONDS", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
// -------- End of Header
line.clear();
line += std::string(60, ' ');
line += Rinex_Printer::leftJustify("END OF HEADER", 20);
Rinex_Printer::lengthCheck(line);
out << line << std::endl;
}
void Rinex_Printer::rinex_sbs_header(std::fstream& out)
{
std::string line;
@ -11045,7 +11571,7 @@ void Rinex_Printer::log_rinex_obs(std::fstream& out, const Beidou_Dnav_Ephemeris
lineObs += Rinex_Printer::rightJustify(Rinex_Printer::asString<int32_t>(ssi), 1);
// CARRIER PHASE
lineObs += Rinex_Printer::rightJustify(asString(iter->second.Carrier_phase_rads / (BEIDOU_TWO_PI), 3), 14);
lineObs += Rinex_Printer::rightJustify(asString(iter->second.Carrier_phase_rads / (BEIDOU_DNAV_TWO_PI), 3), 14);
if (lli == 0)
{
lineObs += std::string(1, ' ');

23
src/algorithms/PVT/libs/rinex_printer.h
View File

@ -149,8 +149,31 @@ public:
*/
void rinex_nav_header(std::fstream& out, const Gps_CNAV_Iono& gps_iono, const Gps_CNAV_Utc_Model& gps_utc_model, const Glonass_Gnav_Utc_Model& glonass_gnav_utc_model, const Glonass_Gnav_Almanac& glonass_gnav_almanac);
/*!
* \brief Generates the BDS B1I or B3I Navigation Data header
*/
void rinex_nav_header(std::fstream& out, const Beidou_Dnav_Iono& iono, const Beidou_Dnav_Utc_Model& utc_model);
/*!
* \brief Generates the Mixed GPS L1,L5 + BDS B1I, B3I Navigation Data header
*/
void rinex_nav_header(std::fstream& out, const Gps_Iono& gps_lnav_iono, const Gps_Utc_Model& gps_lnav_utc_model, const Gps_Ephemeris& eph, const Beidou_Dnav_Iono& bds_dnav_iono, const Beidou_Dnav_Utc_Model& bds_dnav_utc_model);
/*!
* \brief Generates the Mixed GPS L2C + BDS B1I, B3I Navigation Data header
*/
void rinex_nav_header(std::fstream& out, const Gps_CNAV_Iono& gps_cnav_iono, const Gps_CNAV_Utc_Model& gps_cnav_utc_model, const Beidou_Dnav_Iono& bds_dnav_iono, const Beidou_Dnav_Utc_Model& bds_dnav_utc_model);
/*!
* \brief Generates the Mixed GLONASS L1,L2 + BDS B1I, B3I Navigation Data header
*/
void rinex_nav_header(std::fstream& out, const Glonass_Gnav_Utc_Model& glo_gnav_utc_model, const Beidou_Dnav_Iono& bds_dnav_iono, const Beidou_Dnav_Utc_Model& bds_dnav_utc_model);
/*!
* \brief Generates the Mixed (Galileo/BDS B1I, B3I) Navigation Data header
*/
void rinex_nav_header(std::fstream& out, const Galileo_Iono& galileo_iono, const Galileo_Utc_Model& galileo_utc_model, const Beidou_Dnav_Iono& bds_dnav_iono, const Beidou_Dnav_Utc_Model& bds_dnav_utc_model);
/*!
* \brief Generates the GPS Observation data header
*/

7
src/algorithms/PVT/libs/rtklib_solver.cc
View File

@ -54,6 +54,7 @@
#include "rtklib_solver.h"
#include "Beidou_B1I.h"
#include "Beidou_B3I.h"
#include "Beidou_DNAV.h"
#include "GLONASS_L1_L2_CA.h"
#include "GPS_L1_CA.h"
#include "Galileo_E1.h"
@ -730,7 +731,7 @@ bool Rtklib_Solver::get_PVT(const std::map<int, Gnss_Synchro> &gnss_observables_
obsd_t newobs = {{0, 0}, '0', '0', {}, {}, {}, {}, {}, {}};
obs_data[valid_obs + glo_valid_obs] = insert_obs_to_rtklib(newobs,
gnss_observables_iter->second,
beidou_ephemeris_iter->second.i_BEIDOU_week + 1356,
beidou_ephemeris_iter->second.i_BEIDOU_week + BEIDOU_DNAV_BDT2GPST_WEEK_NUM_OFFSET,
0);
valid_obs++;
}
@ -752,7 +753,7 @@ bool Rtklib_Solver::get_PVT(const std::map<int, Gnss_Synchro> &gnss_observables_
{
obs_data[i + glo_valid_obs] = insert_obs_to_rtklib(obs_data[i + glo_valid_obs],
gnss_observables_iter->second,
beidou_ephemeris_iter->second.i_BEIDOU_week + 1356,
beidou_ephemeris_iter->second.i_BEIDOU_week + BEIDOU_DNAV_BDT2GPST_WEEK_NUM_OFFSET,
1); // Band 3 (L2/G2/B3)
found_B1I_obs = true;
break;
@ -770,7 +771,7 @@ bool Rtklib_Solver::get_PVT(const std::map<int, Gnss_Synchro> &gnss_observables_
{}, {0.0, 0.0, 0.0}, {}};
obs_data[valid_obs + glo_valid_obs] = insert_obs_to_rtklib(newobs,
gnss_observables_iter->second,
beidou_ephemeris_iter->second.i_BEIDOU_week + 1356,
beidou_ephemeris_iter->second.i_BEIDOU_week + BEIDOU_DNAV_BDT2GPST_WEEK_NUM_OFFSET,
1); // Band 2 (L2/G2)
valid_obs++;
}

3
src/algorithms/libs/rtklib/rtklib_conversions.cc
View File

@ -301,6 +301,9 @@ eph_t eph_to_rtklib(const Beidou_Dnav_Ephemeris& bei_eph)
rtklib_sat.Adot = 0; //only in CNAV;
rtklib_sat.ndot = 0; //only in CNAV;
rtklib_sat.svh = bei_eph.i_SV_health;
rtklib_sat.sva = bei_eph.i_SV_accuracy;
rtklib_sat.code = bei_eph.i_sig_type; /*B1I data*/
rtklib_sat.flag = bei_eph.i_nav_type; /*MEO/IGSO satellite*/
rtklib_sat.iode = static_cast<int32_t>(bei_eph.d_AODE); /* AODE */

5
src/algorithms/libs/rtklib/rtklib_pntpos.cc
View File

@ -282,6 +282,11 @@ double prange(const obsd_t *obs, const nav_t *nav, const double *azel,
PC = P2 + P1_P2 - ISCl5i;
}
}
if (sys == SYS_BDS)
{
P2 += P2_C2; /* C2->P2 */
PC = P2; // no tgd corrections for B3I
}
else if (sys == SYS_GAL or sys == SYS_GLO or sys == SYS_BDS) // Gal. E5a single freq.
{
P2 += P2_C2; /* C2->P2 */

305
src/algorithms/telemetry_decoder/gnuradio_blocks/beidou_b1i_telemetry_decoder_gs.cc
View File

@ -29,10 +29,10 @@
*
* -------------------------------------------------------------------------
*/
#include "beidou_b1i_telemetry_decoder_gs.h"
#include "Beidou_B1I.h"
#include "Beidou_DNAV.h"
#include "beidou_dnav_almanac.h"
#include "beidou_dnav_ephemeris.h"
#include "beidou_dnav_iono.h"
#include "beidou_dnav_utc_model.h"
@ -57,7 +57,6 @@ beidou_b1i_make_telemetry_decoder_gs(const Gnss_Satellite &satellite, bool dump)
return beidou_b1i_telemetry_decoder_gs_sptr(new beidou_b1i_telemetry_decoder_gs(satellite, dump));
}
beidou_b1i_telemetry_decoder_gs::beidou_b1i_telemetry_decoder_gs(
const Gnss_Satellite &satellite,
bool dump) : gr::block("beidou_b1i_telemetry_decoder_gs",
@ -75,63 +74,38 @@ beidou_b1i_telemetry_decoder_gs::beidou_b1i_telemetry_decoder_gs(
d_satellite = Gnss_Satellite(satellite.get_system(), satellite.get_PRN());
LOG(INFO) << "Initializing BeiDou B1I Telemetry Decoding for satellite " << this->d_satellite;
d_samples_per_symbol = (BEIDOU_B1I_CODE_RATE_HZ / BEIDOU_B1I_CODE_LENGTH_CHIPS) / BEIDOU_D1NAV_SYMBOL_RATE_SPS;
d_symbol_duration_ms = BEIDOU_B1I_TELEMETRY_SYMBOLS_PER_BIT * BEIDOU_B1I_CODE_PERIOD_MS;
d_symbols_per_preamble = BEIDOU_DNAV_PREAMBLE_LENGTH_SYMBOLS;
d_samples_per_preamble = BEIDOU_DNAV_PREAMBLE_LENGTH_SYMBOLS * d_samples_per_symbol;
d_secondary_code_symbols = static_cast<int32_t *>(volk_gnsssdr_malloc(BEIDOU_B1I_SECONDARY_CODE_LENGTH * sizeof(int32_t), volk_gnsssdr_get_alignment()));
d_samples_per_preamble = BEIDOU_DNAV_PREAMBLE_LENGTH_SYMBOLS;
d_preamble_samples = static_cast<int32_t *>(volk_gnsssdr_malloc(d_samples_per_preamble * sizeof(int32_t), volk_gnsssdr_get_alignment()));
d_preamble_period_samples = BEIDOU_DNAV_PREAMBLE_PERIOD_SYMBOLS * d_samples_per_symbol;
// Setting samples of secondary code
for (int32_t i = 0; i < BEIDOU_B1I_SECONDARY_CODE_LENGTH; i++)
{
if (BEIDOU_B1I_SECONDARY_CODE.at(i) == '1')
{
d_secondary_code_symbols[i] = 1;
}
else
{
d_secondary_code_symbols[i] = -1;
}
}
d_preamble_period_samples = BEIDOU_DNAV_PREAMBLE_PERIOD_SYMBOLS;
// Setting samples of preamble code
int32_t n = 0;
for (int32_t i = 0; i < d_symbols_per_preamble; i++)
{
int32_t m = 0;
if (BEIDOU_DNAV_PREAMBLE.at(i) == '1')
{
for (uint32_t j = 0; j < d_samples_per_symbol; j++)
{
d_preamble_samples[n] = d_secondary_code_symbols[m];
n++;
m++;
m = m % BEIDOU_B1I_SECONDARY_CODE_LENGTH;
}
d_preamble_samples[i] = 1;
}
else
{
for (uint32_t j = 0; j < d_samples_per_symbol; j++)
{
d_preamble_samples[n] = -d_secondary_code_symbols[m];
n++;
m++;
m = m % BEIDOU_B1I_SECONDARY_CODE_LENGTH;
}
d_preamble_samples[i] = -1;
}
}
d_subframe_symbols = static_cast<double *>(volk_gnsssdr_malloc(BEIDOU_DNAV_PREAMBLE_PERIOD_SYMBOLS * sizeof(double), volk_gnsssdr_get_alignment()));
d_required_symbols = BEIDOU_DNAV_SUBFRAME_SYMBOLS * d_samples_per_symbol + d_samples_per_preamble;
d_symbol_history.set_capacity(d_required_symbols + 1);
d_subframe_symbols = static_cast<float *>(volk_gnsssdr_malloc(BEIDOU_DNAV_PREAMBLE_PERIOD_SYMBOLS * sizeof(float), volk_gnsssdr_get_alignment()));
d_required_symbols = BEIDOU_DNAV_SUBFRAME_SYMBOLS + d_samples_per_preamble;
d_symbol_history.set_capacity(d_required_symbols);
d_last_valid_preamble = 0;
d_sent_tlm_failed_msg = false;
d_flag_valid_word = false;
// Generic settings
d_sample_counter = 0;
d_stat = 0;
d_preamble_index = 0;
d_flag_frame_sync = false;
d_TOW_at_current_symbol_ms = 0;
d_TOW_at_current_symbol_ms = 0U;
d_TOW_at_Preamble_ms = 0U;
Flag_valid_word = false;
d_CRC_error_counter = 0;
@ -144,7 +118,6 @@ beidou_b1i_telemetry_decoder_gs::beidou_b1i_telemetry_decoder_gs(
beidou_b1i_telemetry_decoder_gs::~beidou_b1i_telemetry_decoder_gs()
{
volk_gnsssdr_free(d_preamble_samples);
volk_gnsssdr_free(d_secondary_code_symbols);
volk_gnsssdr_free(d_subframe_symbols);
if (d_dump_file.is_open() == true)
@ -192,7 +165,7 @@ void beidou_b1i_telemetry_decoder_gs::decode_bch15_11_01(const int32_t *bits, in
void beidou_b1i_telemetry_decoder_gs::decode_word(
int32_t word_counter,
const double *enc_word_symbols,
const float *enc_word_symbols,
int32_t *dec_word_symbols)
{
int32_t bitsbch[30], first_branch[15], second_branch[15];
@ -232,7 +205,7 @@ void beidou_b1i_telemetry_decoder_gs::decode_word(
}
void beidou_b1i_telemetry_decoder_gs::decode_subframe(double *frame_symbols)
void beidou_b1i_telemetry_decoder_gs::decode_subframe(float *frame_symbols)
{
// 1. Transform from symbols to bits
std::string data_bits;
@ -263,11 +236,13 @@ void beidou_b1i_telemetry_decoder_gs::decode_subframe(double *frame_symbols)
// 3. Check operation executed correctly
if (d_nav.flag_crc_test == true)
{
DLOG(INFO) << "BeiDou DNAV CRC correct in channel " << d_channel << " from satellite " << d_satellite;
DLOG(INFO) << "BeiDou DNAV CRC correct in channel " << d_channel
<< " from satellite " << d_satellite;
}
else
{
DLOG(INFO) << "BeiDou DNAV CRC error in channel " << d_channel << " from satellite " << d_satellite;
DLOG(INFO) << "BeiDou DNAV CRC error in channel " << d_channel
<< " from satellite " << d_satellite;
}
// 4. Push the new navigation data to the queues
if (d_nav.have_new_ephemeris() == true)
@ -322,41 +297,59 @@ void beidou_b1i_telemetry_decoder_gs::set_satellite(const Gnss_Satellite &satell
{
// Clear values from previous declaration
volk_gnsssdr_free(d_preamble_samples);
volk_gnsssdr_free(d_secondary_code_symbols);
volk_gnsssdr_free(d_subframe_symbols);
d_samples_per_symbol = (BEIDOU_B1I_CODE_RATE_HZ / BEIDOU_B1I_CODE_LENGTH_CHIPS) / BEIDOU_D2NAV_SYMBOL_RATE_SPS;
d_symbols_per_preamble = BEIDOU_DNAV_PREAMBLE_LENGTH_SYMBOLS;
d_samples_per_preamble = BEIDOU_DNAV_PREAMBLE_LENGTH_SYMBOLS * d_samples_per_symbol;
d_secondary_code_symbols = nullptr;
d_samples_per_preamble = BEIDOU_DNAV_PREAMBLE_LENGTH_SYMBOLS;
d_preamble_samples = static_cast<int32_t *>(volk_gnsssdr_malloc(d_samples_per_preamble * sizeof(int32_t), volk_gnsssdr_get_alignment()));
d_preamble_period_samples = BEIDOU_DNAV_PREAMBLE_PERIOD_SYMBOLS * d_samples_per_symbol;
d_preamble_period_samples = BEIDOU_DNAV_PREAMBLE_PERIOD_SYMBOLS;
// Setting samples of preamble code
int32_t n = 0;
for (int32_t i = 0; i < d_symbols_per_preamble; i++)
{
if (BEIDOU_DNAV_PREAMBLE.at(i) == '1')
{
for (uint32_t j = 0; j < d_samples_per_symbol; j++)
{
d_preamble_samples[n] = 1;
n++;
}
d_preamble_samples[i] = 1;
}
else
{
for (uint32_t j = 0; j < d_samples_per_symbol; j++)
{
d_preamble_samples[n] = -1;
n++;
}
d_preamble_samples[i] = -1;
}
}
d_subframe_symbols = static_cast<double *>(volk_gnsssdr_malloc(BEIDOU_DNAV_PREAMBLE_PERIOD_SYMBOLS * sizeof(double), volk_gnsssdr_get_alignment()));
d_required_symbols = BEIDOU_DNAV_SUBFRAME_SYMBOLS * d_samples_per_symbol + d_samples_per_preamble;
d_symbol_history.set_capacity(d_required_symbols + 1);
d_symbol_duration_ms = BEIDOU_B1I_GEO_TELEMETRY_SYMBOLS_PER_BIT * BEIDOU_B1I_CODE_PERIOD_MS;
d_subframe_symbols = static_cast<float *>(volk_gnsssdr_malloc(BEIDOU_DNAV_PREAMBLE_PERIOD_SYMBOLS * sizeof(float), volk_gnsssdr_get_alignment()));
d_required_symbols = BEIDOU_DNAV_SUBFRAME_SYMBOLS + d_samples_per_preamble;
d_symbol_history.set_capacity(d_required_symbols);
}
else
{
// Clear values from previous declaration
volk_gnsssdr_free(d_preamble_samples);
volk_gnsssdr_free(d_subframe_symbols);
//back to normal satellites
d_symbol_duration_ms = BEIDOU_B1I_TELEMETRY_SYMBOLS_PER_BIT * BEIDOU_B1I_CODE_PERIOD_MS;
d_symbols_per_preamble = BEIDOU_DNAV_PREAMBLE_LENGTH_SYMBOLS;
d_samples_per_preamble = BEIDOU_DNAV_PREAMBLE_LENGTH_SYMBOLS;
d_preamble_samples = static_cast<int32_t *>(volk_gnsssdr_malloc(d_samples_per_preamble * sizeof(int32_t), volk_gnsssdr_get_alignment()));
d_preamble_period_samples = BEIDOU_DNAV_PREAMBLE_PERIOD_SYMBOLS;
// Setting samples of preamble code
for (int32_t i = 0; i < d_symbols_per_preamble; i++)
{
if (BEIDOU_DNAV_PREAMBLE.at(i) == '1')
{
d_preamble_samples[i] = 1;
}
else
{
d_preamble_samples[i] = -1;
}
}
d_subframe_symbols = static_cast<float *>(volk_gnsssdr_malloc(BEIDOU_DNAV_PREAMBLE_PERIOD_SYMBOLS * sizeof(float), volk_gnsssdr_get_alignment()));
d_required_symbols = BEIDOU_DNAV_SUBFRAME_SYMBOLS + d_samples_per_preamble;
d_symbol_history.set_capacity(d_required_symbols);
}
}
@ -387,6 +380,15 @@ void beidou_b1i_telemetry_decoder_gs::set_channel(int32_t channel)
}
}
void beidou_b1i_telemetry_decoder_gs::reset()
{
d_last_valid_preamble = d_sample_counter;
d_TOW_at_current_symbol_ms = 0;
d_sent_tlm_failed_msg = false;
d_flag_valid_word = false;
DLOG(INFO) << "Beidou B1I Telemetry decoder reset for satellite " << d_satellite;
return;
}
int beidou_b1i_telemetry_decoder_gs::general_work(int noutput_items __attribute__((unused)), gr_vector_int &ninput_items __attribute__((unused)),
gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)
@ -403,10 +405,9 @@ int beidou_b1i_telemetry_decoder_gs::general_work(int noutput_items __attribute_
d_symbol_history.push_back(current_symbol.Prompt_I); // add new symbol to the symbol queue
d_sample_counter++; // count for the processed samples
consume_each(1);
d_flag_preamble = false;
if (d_symbol_history.size() > d_required_symbols)
if (d_symbol_history.size() >= d_required_symbols)
{
//******* preamble correlation ********
for (int32_t i = 0; i < d_samples_per_preamble; i++)
@ -421,7 +422,6 @@ int beidou_b1i_telemetry_decoder_gs::general_work(int noutput_items __attribute_
}
}
}
//******* frame sync ******************
if (d_stat == 0) // no preamble information
{
@ -429,7 +429,7 @@ int beidou_b1i_telemetry_decoder_gs::general_work(int noutput_items __attribute_
{
// Record the preamble sample stamp
d_preamble_index = d_sample_counter;
LOG(INFO) << "Preamble detection for BEIDOU B1I SAT " << this->d_satellite;
DLOG(INFO) << "Preamble detection for BEIDOU B1I SAT " << this->d_satellite;
// Enter into frame pre-detection status
d_stat = 1;
}
@ -443,71 +443,25 @@ int beidou_b1i_telemetry_decoder_gs::general_work(int noutput_items __attribute_
if (abs(preamble_diff - d_preamble_period_samples) == 0)
{
// try to decode frame
LOG(INFO) << "Starting BeiDou DNAV frame decoding for BeiDou B1I SAT " << this->d_satellite;
DLOG(INFO) << "Starting BeiDou DNAV frame decoding for BeiDou B1I SAT " << this->d_satellite;
d_preamble_index = d_sample_counter; //record the preamble sample stamp
d_stat = 2;
}
else
{
if (preamble_diff > d_preamble_period_samples)
{
d_stat = 0; // start again
}
DLOG(INFO) << "Failed BeiDou DNAV frame decoding for BeiDou B1I SAT " << this->d_satellite;
}
}
}
else if (d_stat == 2) // preamble acquired
{
if (d_sample_counter == d_preamble_index + static_cast<uint64_t>(d_preamble_period_samples))
{
// ******* SAMPLES TO SYMBOLS *******
if (corr_value > 0) //normal PLL lock
{
int32_t k = 0;
for (uint32_t i = 0; i < BEIDOU_DNAV_PREAMBLE_PERIOD_SYMBOLS; i++)
{
d_subframe_symbols[i] = 0;
// integrate samples into symbols
for (uint32_t m = 0; m < d_samples_per_symbol; m++)
{
if (d_satellite.get_PRN() > 0 and d_satellite.get_PRN() < 6)
{
// because last symbol of the preamble is just received now!
d_subframe_symbols[i] += d_symbol_history.at(i * d_samples_per_symbol + m);
}
else
{
// because last symbol of the preamble is just received now!
d_subframe_symbols[i] += static_cast<float>(d_secondary_code_symbols[k]) * d_symbol_history.at(i * d_samples_per_symbol + m);
k++;
k = k % BEIDOU_B1I_SECONDARY_CODE_LENGTH;
}
}
d_subframe_symbols[i] = d_symbol_history.at(i);
}
}
else // 180 deg. inverted carrier phase PLL lock
{
int32_t k = 0;
for (uint32_t i = 0; i < BEIDOU_DNAV_PREAMBLE_PERIOD_SYMBOLS; i++)
{
d_subframe_symbols[i] = 0;
// integrate samples into symbols
for (uint32_t m = 0; m < d_samples_per_symbol; m++)
{
if (d_satellite.get_PRN() > 0 and d_satellite.get_PRN() < 6)
{
// because last symbol of the preamble is just received now!
d_subframe_symbols[i] -= d_symbol_history.at(i * d_samples_per_symbol + m);
}
else
{
// because last symbol of the preamble is just received now!
d_subframe_symbols[i] -= static_cast<float>(d_secondary_code_symbols[k]) * d_symbol_history.at(i * d_samples_per_symbol + m);
k++;
k = k % BEIDOU_B1I_SECONDARY_CODE_LENGTH;
}
}
d_subframe_symbols[i] = -d_symbol_history.at(i);
}
}
@ -531,7 +485,64 @@ int beidou_b1i_telemetry_decoder_gs::general_work(int noutput_items __attribute_
d_preamble_index = d_sample_counter; // record the preamble sample stamp
if (d_CRC_error_counter > CRC_ERROR_LIMIT)
{
LOG(INFO) << "BeiDou DNAV frame sync lost for SAT " << this->d_satellite;
DLOG(INFO) << "BeiDou DNAV frame sync lost for SAT " << this->d_satellite;
d_flag_frame_sync = false;
d_stat = 0;
flag_SOW_set = false;
}
}
}
else
{
if (preamble_diff > d_preamble_period_samples)
{
d_stat = 0; // start again
}
DLOG(INFO) << "Failed BeiDou DNAV frame decoding for BeiDou B1I SAT " << this->d_satellite;
}
}
}
else if (d_stat == 2) // preamble acquired
{
if (d_sample_counter == d_preamble_index + static_cast<uint64_t>(d_preamble_period_samples))
{
// ******* SAMPLES TO SYMBOLS *******
if (corr_value > 0) //normal PLL lock
{
for (uint32_t i = 0; i < BEIDOU_DNAV_PREAMBLE_PERIOD_SYMBOLS; i++)
{
d_subframe_symbols[i] = d_symbol_history.at(i);
}
}
else // 180 deg. inverted carrier phase PLL lock
{
for (uint32_t i = 0; i < BEIDOU_DNAV_PREAMBLE_PERIOD_SYMBOLS; i++)
{
d_subframe_symbols[i] = -d_symbol_history.at(i);
}
}
// call the decoder
decode_subframe(d_subframe_symbols);
if (d_nav.flag_crc_test == true)
{
d_CRC_error_counter = 0;
d_flag_preamble = true; // valid preamble indicator (initialized to false every work())
d_preamble_index = d_sample_counter; // record the preamble sample stamp (t_P)
if (!d_flag_frame_sync)
{
d_flag_frame_sync = true;
DLOG(INFO) << "BeiDou DNAV frame sync found for SAT " << this->d_satellite;
}
}
else
{
d_CRC_error_counter++;
d_preamble_index = d_sample_counter; // record the preamble sample stamp
if (d_CRC_error_counter > CRC_ERROR_LIMIT)
{
DLOG(INFO) << "BeiDou DNAV frame sync lost for SAT " << this->d_satellite;
d_flag_frame_sync = false;
d_stat = 0;
flag_SOW_set = false;
@ -539,35 +550,50 @@ int beidou_b1i_telemetry_decoder_gs::general_work(int noutput_items __attribute_
}
}
}
// UPDATE GNSS SYNCHRO DATA
// 2. Add the telemetry decoder information
if (this->d_flag_preamble == true and d_nav.flag_new_SOW_available == true)
// update TOW at the preamble instant
{
// Reporting sow as gps time of week
d_TOW_at_Preamble_ms = static_cast<uint32_t>((d_nav.d_SOW + 14) * 1000.0);
d_TOW_at_current_symbol_ms = d_TOW_at_Preamble_ms + static_cast<uint32_t>((d_required_symbols + 1) * BEIDOU_B1I_CODE_PERIOD_MS);
d_TOW_at_Preamble_ms = static_cast<uint32_t>((d_nav.d_SOW + BEIDOU_DNAV_BDT2GPST_LEAP_SEC_OFFSET) * 1000.0);
//check TOW update consistency
uint32_t last_d_TOW_at_current_symbol_ms = d_TOW_at_current_symbol_ms;
//compute new TOW
d_TOW_at_current_symbol_ms = d_TOW_at_Preamble_ms + d_required_symbols * d_symbol_duration_ms;
flag_SOW_set = true;
d_nav.flag_new_SOW_available = false;
}
else // if there is not a new preamble, we define the TOW of the current symbol
{
d_TOW_at_current_symbol_ms += static_cast<uint32_t>(BEIDOU_B1I_CODE_PERIOD_MS);
}
if (d_flag_frame_sync == true and flag_SOW_set == true)
if (last_d_TOW_at_current_symbol_ms != 0 and abs(static_cast<int64_t>(d_TOW_at_current_symbol_ms) - int64_t(last_d_TOW_at_current_symbol_ms)) > d_symbol_duration_ms)
{
current_symbol.Flag_valid_word = true;
LOG(INFO) << "Warning: BEIDOU B1I TOW update in ch " << d_channel
<< " does not match the TLM TOW counter " << static_cast<int64_t>(d_TOW_at_current_symbol_ms) - int64_t(last_d_TOW_at_current_symbol_ms) << " ms \n";
d_TOW_at_current_symbol_ms = 0;
d_flag_valid_word = false;
}
else
{
current_symbol.Flag_valid_word = false;
d_last_valid_preamble = d_sample_counter;
d_flag_valid_word = true;
}
}
else
{
if (d_flag_valid_word)
{
d_TOW_at_current_symbol_ms += d_symbol_duration_ms;
if (current_symbol.Flag_valid_symbol_output == false)
{
d_flag_valid_word = false;
}
}
}
current_symbol.PRN = this->d_satellite.get_PRN();
if (d_flag_valid_word == true)
{
current_symbol.TOW_at_current_symbol_ms = d_TOW_at_current_symbol_ms;
current_symbol.Flag_valid_word = d_flag_valid_word;
if (d_dump == true)
{
@ -576,23 +602,22 @@ int beidou_b1i_telemetry_decoder_gs::general_work(int noutput_items __attribute_
{
double tmp_double;
uint64_t tmp_ulong_int;
tmp_double = static_cast<double>(d_TOW_at_current_symbol_ms);
tmp_double = static_cast<double>(d_TOW_at_current_symbol_ms) / 1000.0;
d_dump_file.write(reinterpret_cast<char *>(&tmp_double), sizeof(double));
tmp_ulong_int = current_symbol.Tracking_sample_counter;
d_dump_file.write(reinterpret_cast<char *>(&tmp_ulong_int), sizeof(uint64_t));
tmp_double = d_nav.d_SOW;
tmp_double = static_cast<double>(d_TOW_at_Preamble_ms) / 1000.0;
d_dump_file.write(reinterpret_cast<char *>(&tmp_double), sizeof(double));
tmp_ulong_int = static_cast<uint64_t>(d_required_symbols);
d_dump_file.write(reinterpret_cast<char *>(&tmp_ulong_int), sizeof(uint64_t));
}
catch (const std::ifstream::failure &e)
{
LOG(WARNING) << "Exception writing observables dump file " << e.what();
LOG(WARNING) << "Exception writing Telemetry GPS L5 dump file " << e.what();
}
}
// 3. Make the output (copy the object contents to the GNURadio reserved memory)
*out[0] = current_symbol;
return 1;
}
return 0;
}

22
src/algorithms/telemetry_decoder/gnuradio_blocks/beidou_b1i_telemetry_decoder_gs.h
View File

@ -62,10 +62,8 @@ public:
~beidou_b1i_telemetry_decoder_gs(); //!< Class destructor
void set_satellite(const Gnss_Satellite &satellite); //!< Set satellite PRN
void set_channel(int channel); //!< Set receiver's channel
inline void reset()
{
return;
}
void reset();
/*!
* \brief This is where all signal processing takes place
*/
@ -77,19 +75,17 @@ private:
beidou_b1i_make_telemetry_decoder_gs(const Gnss_Satellite &satellite, bool dump);
beidou_b1i_telemetry_decoder_gs(const Gnss_Satellite &satellite, bool dump);
void decode_subframe(double *symbols);
void decode_word(int32_t word_counter, const double *enc_word_symbols, int32_t *dec_word_symbols);
void decode_subframe(float *symbols);
void decode_word(int32_t word_counter, const float *enc_word_symbols, int32_t *dec_word_symbols);
void decode_bch15_11_01(const int32_t *bits, int32_t *decbits);
// Preamble decoding
int32_t *d_preamble_samples;
int32_t *d_secondary_code_symbols;
uint32_t d_samples_per_symbol;
int32_t d_symbols_per_preamble;
int32_t d_samples_per_preamble;
int32_t d_preamble_period_samples;
double *d_subframe_symbols;
float *d_subframe_symbols;
uint32_t d_required_symbols;
// Storage for incoming data
@ -107,12 +103,16 @@ private:
//!< Navigation Message variable
Beidou_Dnav_Navigation_Message d_nav;
//!< Values to populate gnss synchronization structure
// Values to populate gnss synchronization structure
uint32_t d_symbol_duration_ms;
uint32_t d_TOW_at_Preamble_ms;
uint32_t d_TOW_at_current_symbol_ms;
uint64_t d_last_valid_preamble;
bool d_flag_valid_word;
bool d_sent_tlm_failed_msg;
bool Flag_valid_word;
//!< Satellite Information and logging capacity
// Satellite Information and logging capacity
Gnss_Satellite d_satellite;
int32_t d_channel;
bool d_dump;

320
src/algorithms/telemetry_decoder/gnuradio_blocks/beidou_b3i_telemetry_decoder_gs.cc
View File

@ -53,8 +53,7 @@ beidou_b3i_telemetry_decoder_gs_sptr
beidou_b3i_make_telemetry_decoder_gs(const Gnss_Satellite &satellite,
bool dump)
{
return beidou_b3i_telemetry_decoder_gs_sptr(
new beidou_b3i_telemetry_decoder_gs(satellite, dump));
return beidou_b3i_telemetry_decoder_gs_sptr(new beidou_b3i_telemetry_decoder_gs(satellite, dump));
}
@ -70,74 +69,37 @@ beidou_b3i_telemetry_decoder_gs::beidou_b3i_telemetry_decoder_gs(
this->message_port_register_out(pmt::mp("telemetry"));
// Control messages to tracking block
this->message_port_register_out(pmt::mp("telemetry_to_trk"));
// initialize internal vars
d_dump = dump;
d_satellite = Gnss_Satellite(satellite.get_system(), satellite.get_PRN());
LOG(INFO) << "Initializing BeiDou B3I Telemetry Decoding for satellite "
<< this->d_satellite;
LOG(INFO) << "Initializing BeiDou B3I Telemetry Decoding for satellite " << this->d_satellite;
d_samples_per_symbol =
(BEIDOU_B3I_CODE_RATE_HZ / BEIDOU_B3I_CODE_LENGTH_CHIPS) /
BEIDOU_D1NAV_SYMBOL_RATE_SPS;
d_symbol_duration_ms = BEIDOU_B3I_TELEMETRY_SYMBOLS_PER_BIT * BEIDOU_B3I_CODE_PERIOD_MS;
d_symbols_per_preamble = BEIDOU_DNAV_PREAMBLE_LENGTH_SYMBOLS;
d_samples_per_preamble =
BEIDOU_DNAV_PREAMBLE_LENGTH_SYMBOLS * d_samples_per_symbol;
d_secondary_code_symbols = static_cast<int32_t *>(
volk_gnsssdr_malloc(BEIDOU_B3I_SECONDARY_CODE_LENGTH * sizeof(int32_t),
volk_gnsssdr_get_alignment()));
d_preamble_samples = static_cast<int32_t *>(volk_gnsssdr_malloc(
d_samples_per_preamble * sizeof(int32_t), volk_gnsssdr_get_alignment()));
d_preamble_period_samples =
BEIDOU_DNAV_PREAMBLE_PERIOD_SYMBOLS * d_samples_per_symbol;
// Setting samples of secondary code
for (int32_t i = 0; i < BEIDOU_B3I_SECONDARY_CODE_LENGTH; i++)
{
if (BEIDOU_B3I_SECONDARY_CODE.at(i) == '1')
{
d_secondary_code_symbols[i] = 1;
}
else
{
d_secondary_code_symbols[i] = -1;
}
}
d_samples_per_preamble = BEIDOU_DNAV_PREAMBLE_LENGTH_SYMBOLS;
d_preamble_samples = static_cast<int32_t *>(volk_gnsssdr_malloc(d_samples_per_preamble * sizeof(int32_t), volk_gnsssdr_get_alignment()));
d_preamble_period_samples = BEIDOU_DNAV_PREAMBLE_PERIOD_SYMBOLS;
// Setting samples of preamble code
int32_t n = 0;
for (int32_t i = 0; i < d_symbols_per_preamble; i++)
{
int32_t m = 0;
if (BEIDOU_DNAV_PREAMBLE.at(i) == '1')
{
for (uint32_t j = 0; j < d_samples_per_symbol; j++)
{
d_preamble_samples[n] = d_secondary_code_symbols[m];
n++;
m++;
m = m % BEIDOU_B3I_SECONDARY_CODE_LENGTH;
}
d_preamble_samples[i] = 1;
}
else
{
for (uint32_t j = 0; j < d_samples_per_symbol; j++)
{
d_preamble_samples[n] = -d_secondary_code_symbols[m];
n++;
m++;
m = m % BEIDOU_B3I_SECONDARY_CODE_LENGTH;
}
d_preamble_samples[i] = -1;
}
}
d_subframe_symbols = static_cast<double *>(
volk_gnsssdr_malloc(BEIDOU_DNAV_PREAMBLE_PERIOD_SYMBOLS * sizeof(double),
volk_gnsssdr_get_alignment()));
d_required_symbols = BEIDOU_DNAV_SUBFRAME_SYMBOLS * d_samples_per_symbol +
d_samples_per_preamble;
d_symbol_history.set_capacity(d_required_symbols + 1);
d_subframe_symbols = static_cast<float *>(volk_gnsssdr_malloc(BEIDOU_DNAV_PREAMBLE_PERIOD_SYMBOLS * sizeof(float), volk_gnsssdr_get_alignment()));
d_required_symbols = BEIDOU_DNAV_SUBFRAME_SYMBOLS + d_samples_per_preamble;
d_symbol_history.set_capacity(d_required_symbols);
d_last_valid_preamble = 0;
d_sent_tlm_failed_msg = false;
d_flag_valid_word = false;
// Generic settings
d_sample_counter = 0;
d_stat = 0;
@ -156,7 +118,6 @@ beidou_b3i_telemetry_decoder_gs::beidou_b3i_telemetry_decoder_gs(
beidou_b3i_telemetry_decoder_gs::~beidou_b3i_telemetry_decoder_gs()
{
volk_gnsssdr_free(d_preamble_samples);
volk_gnsssdr_free(d_secondary_code_symbols);
volk_gnsssdr_free(d_subframe_symbols);
if (d_dump_file.is_open() == true)
@ -167,8 +128,7 @@ beidou_b3i_telemetry_decoder_gs::~beidou_b3i_telemetry_decoder_gs()
}
catch (const std::exception &ex)
{
LOG(WARNING) << "Exception in destructor closing the dump file "
<< ex.what();
LOG(WARNING) << "Exception in destructor closing the dump file " << ex.what();
}
}
}
@ -205,7 +165,8 @@ void beidou_b3i_telemetry_decoder_gs::decode_bch15_11_01(const int32_t *bits,
void beidou_b3i_telemetry_decoder_gs::decode_word(
int32_t word_counter, const double *enc_word_symbols,
int32_t word_counter,
const float *enc_word_symbols,
int32_t *dec_word_symbols)
{
int32_t bitsbch[30], first_branch[15], second_branch[15];
@ -214,8 +175,7 @@ void beidou_b3i_telemetry_decoder_gs::decode_word(
{
for (uint32_t j = 0; j < 30; j++)
{
dec_word_symbols[j] =
static_cast<int32_t>(enc_word_symbols[j] > 0) ? (1) : (-1);
dec_word_symbols[j] = static_cast<int32_t>(enc_word_symbols[j] > 0) ? (1) : (-1);
}
}
else
@ -224,8 +184,7 @@ void beidou_b3i_telemetry_decoder_gs::decode_word(
{
for (uint32_t c = 0; c < 15; c++)
{
bitsbch[r * 15 + c] =
static_cast<int32_t>(enc_word_symbols[c * 2 + r] > 0) ? (1) : (-1);
bitsbch[r * 15 + c] = static_cast<int32_t>(enc_word_symbols[c * 2 + r] > 0) ? (1) : (-1);
}
}
@ -247,7 +206,7 @@ void beidou_b3i_telemetry_decoder_gs::decode_word(
}
void beidou_b3i_telemetry_decoder_gs::decode_subframe(double *frame_symbols)
void beidou_b3i_telemetry_decoder_gs::decode_subframe(float *frame_symbols)
{
// 1. Transform from symbols to bits
std::string data_bits;
@ -356,50 +315,62 @@ void beidou_b3i_telemetry_decoder_gs::set_satellite(
{
// Clear values from previous declaration
volk_gnsssdr_free(d_preamble_samples);
volk_gnsssdr_free(d_secondary_code_symbols);
volk_gnsssdr_free(d_subframe_symbols);
d_samples_per_symbol =
(BEIDOU_B3I_CODE_RATE_HZ / BEIDOU_B3I_CODE_LENGTH_CHIPS) /
BEIDOU_D2NAV_SYMBOL_RATE_SPS;
d_symbols_per_preamble = BEIDOU_DNAV_PREAMBLE_LENGTH_SYMBOLS;
d_samples_per_preamble =
BEIDOU_DNAV_PREAMBLE_LENGTH_SYMBOLS * d_samples_per_symbol;
d_secondary_code_symbols = nullptr;
d_preamble_samples = static_cast<int32_t *>(
volk_gnsssdr_malloc(d_samples_per_preamble * sizeof(int32_t),
d_samples_per_preamble = BEIDOU_DNAV_PREAMBLE_LENGTH_SYMBOLS;
d_preamble_samples = static_cast<int32_t *>(volk_gnsssdr_malloc(d_samples_per_preamble * sizeof(int32_t),
volk_gnsssdr_get_alignment()));
d_preamble_period_samples =
BEIDOU_DNAV_PREAMBLE_PERIOD_SYMBOLS * d_samples_per_symbol;
d_preamble_period_samples = BEIDOU_DNAV_PREAMBLE_PERIOD_SYMBOLS;
// Setting samples of preamble code
int32_t n = 0;
for (int32_t i = 0; i < d_symbols_per_preamble; i++)
{
if (BEIDOU_DNAV_PREAMBLE.at(i) == '1')
{
for (uint32_t j = 0; j < d_samples_per_symbol; j++)
{
d_preamble_samples[n] = 1;
n++;
}
d_preamble_samples[i] = 1;
}
else
{
for (uint32_t j = 0; j < d_samples_per_symbol; j++)
{
d_preamble_samples[n] = -1;
n++;
d_preamble_samples[i] = -1;
}
}
d_symbol_duration_ms = BEIDOU_B3I_GEO_TELEMETRY_SYMBOLS_PER_BIT * BEIDOU_B3I_CODE_PERIOD_MS;
d_subframe_symbols = static_cast<float *>(volk_gnsssdr_malloc(
BEIDOU_DNAV_PREAMBLE_PERIOD_SYMBOLS * sizeof(float),
volk_gnsssdr_get_alignment()));
d_required_symbols = BEIDOU_DNAV_SUBFRAME_SYMBOLS + d_samples_per_preamble;
d_symbol_history.set_capacity(d_required_symbols);
}
else
{
// Clear values from previous declaration
volk_gnsssdr_free(d_preamble_samples);
volk_gnsssdr_free(d_subframe_symbols);
//back to normal satellites
d_symbol_duration_ms = BEIDOU_B3I_TELEMETRY_SYMBOLS_PER_BIT * BEIDOU_B3I_CODE_PERIOD_MS;
d_symbols_per_preamble = BEIDOU_DNAV_PREAMBLE_LENGTH_SYMBOLS;
d_samples_per_preamble = BEIDOU_DNAV_PREAMBLE_LENGTH_SYMBOLS;
d_preamble_samples = static_cast<int32_t *>(volk_gnsssdr_malloc(d_samples_per_preamble * sizeof(int32_t), volk_gnsssdr_get_alignment()));
d_preamble_period_samples = BEIDOU_DNAV_PREAMBLE_PERIOD_SYMBOLS;
// Setting samples of preamble code
for (int32_t i = 0; i < d_symbols_per_preamble; i++)
{
if (BEIDOU_DNAV_PREAMBLE.at(i) == '1')
{
d_preamble_samples[i] = 1;
}
else
{
d_preamble_samples[i] = -1;
}
}
d_subframe_symbols = static_cast<double *>(volk_gnsssdr_malloc(
BEIDOU_DNAV_PREAMBLE_PERIOD_SYMBOLS * sizeof(double),
volk_gnsssdr_get_alignment()));
d_required_symbols = BEIDOU_DNAV_SUBFRAME_SYMBOLS * d_samples_per_symbol +
d_samples_per_preamble;
d_symbol_history.set_capacity(d_required_symbols + 1);
d_subframe_symbols = static_cast<float *>(volk_gnsssdr_malloc(BEIDOU_DNAV_PREAMBLE_PERIOD_SYMBOLS * sizeof(float), volk_gnsssdr_get_alignment()));
d_required_symbols = BEIDOU_DNAV_SUBFRAME_SYMBOLS + d_samples_per_preamble;
d_symbol_history.set_capacity(d_required_symbols);
}
}
@ -434,6 +405,15 @@ void beidou_b3i_telemetry_decoder_gs::set_channel(int32_t channel)
}
}
void beidou_b3i_telemetry_decoder_gs::reset()
{
d_last_valid_preamble = d_sample_counter;
d_TOW_at_current_symbol_ms = 0;
d_sent_tlm_failed_msg = false;
d_flag_valid_word = false;
DLOG(INFO) << "Beidou B3I Telemetry decoder reset for satellite " << d_satellite;
return;
}
int beidou_b3i_telemetry_decoder_gs::general_work(
int noutput_items __attribute__((unused)),
@ -454,10 +434,9 @@ int beidou_b3i_telemetry_decoder_gs::general_work(
d_symbol_history.push_back(current_symbol.Prompt_I); // add new symbol to the symbol queue
d_sample_counter++; // count for the processed samples
consume_each(1);
d_flag_preamble = false;
if (d_symbol_history.size() > d_required_symbols)
if (d_symbol_history.size() >= d_required_symbols)
{
//******* preamble correlation ********
for (int32_t i = 0; i < d_samples_per_preamble; i++)
@ -472,7 +451,6 @@ int beidou_b3i_telemetry_decoder_gs::general_work(
}
}
}
//******* frame sync ******************
if (d_stat == 0) // no preamble information
{
@ -480,8 +458,7 @@ int beidou_b3i_telemetry_decoder_gs::general_work(
{
// Record the preamble sample stamp
d_preamble_index = d_sample_counter;
LOG(INFO) << "Preamble detection for BEIDOU B3I SAT "
<< this->d_satellite;
DLOG(INFO) << "Preamble detection for BEIDOU B3I SAT " << this->d_satellite;
// Enter into frame pre-detection status
d_stat = 1;
}
@ -495,10 +472,55 @@ int beidou_b3i_telemetry_decoder_gs::general_work(
if (abs(preamble_diff - d_preamble_period_samples) == 0)
{
// try to decode frame
LOG(INFO) << "Starting BeiDou DNAV frame decoding for BeiDou B3I SAT "
DLOG(INFO) << "Starting BeiDou DNAV frame decoding for BeiDou B3I SAT "
<< this->d_satellite;
d_preamble_index = d_sample_counter; // record the preamble sample stamp
d_stat = 2;
// ******* SAMPLES TO SYMBOLS *******
if (corr_value > 0) //normal PLL lock
{
for (uint32_t i = 0; i < BEIDOU_DNAV_PREAMBLE_PERIOD_SYMBOLS; i++)
{
d_subframe_symbols[i] = d_symbol_history.at(i);
}
}
else // 180 deg. inverted carrier phase PLL lock
{
for (uint32_t i = 0; i < BEIDOU_DNAV_PREAMBLE_PERIOD_SYMBOLS; i++)
{
d_subframe_symbols[i] = -d_symbol_history.at(i);
}
}
// call the decoder
decode_subframe(d_subframe_symbols);
if (d_nav.flag_crc_test == true)
{
d_CRC_error_counter = 0;
d_flag_preamble = true; // valid preamble indicator (initialized to false every work())
d_preamble_index = d_sample_counter; // record the preamble sample stamp (t_P)
if (!d_flag_frame_sync)
{
d_flag_frame_sync = true;
DLOG(INFO) << "BeiDou DNAV frame sync found for SAT "
<< this->d_satellite;
}
}
else
{
d_CRC_error_counter++;
d_preamble_index = d_sample_counter; // record the preamble sample stamp
if (d_CRC_error_counter > CRC_ERROR_LIMIT)
{
DLOG(INFO) << "BeiDou DNAV frame sync lost for SAT "
<< this->d_satellite;
d_flag_frame_sync = false;
d_stat = 0;
flag_SOW_set = false;
}
}
}
else
{
@ -513,62 +535,21 @@ int beidou_b3i_telemetry_decoder_gs::general_work(
}
else if (d_stat == 2) // preamble acquired
{
if (d_sample_counter ==
d_preamble_index + static_cast<uint64_t>(d_preamble_period_samples))
if (d_sample_counter == d_preamble_index + static_cast<uint64_t>(d_preamble_period_samples))
{
// ******* SAMPLES TO SYMBOLS *******
if (corr_value > 0) //normal PLL lock
{
int32_t k = 0;
for (uint32_t i = 0; i < BEIDOU_DNAV_PREAMBLE_PERIOD_SYMBOLS; i++)
{
d_subframe_symbols[i] = 0;
// integrate samples into symbols
for (uint32_t m = 0; m < d_samples_per_symbol; m++)
{
if (d_satellite.get_PRN() > 0 and d_satellite.get_PRN() < 6)
{
// because last symbol of the preamble is just received now!
d_subframe_symbols[i] +=
d_symbol_history.at(i * d_samples_per_symbol + m);
}
else
{
// because last symbol of the preamble is just received now!
d_subframe_symbols[i] +=
static_cast<float>(d_secondary_code_symbols[k]) *
d_symbol_history.at(i * d_samples_per_symbol + m);
k++;
k = k % BEIDOU_B3I_SECONDARY_CODE_LENGTH;
}
}
d_subframe_symbols[i] = d_symbol_history.at(i);
}
}
else // 180 deg. inverted carrier phase PLL lock
{
int32_t k = 0;
for (uint32_t i = 0; i < BEIDOU_DNAV_PREAMBLE_PERIOD_SYMBOLS; i++)
{
d_subframe_symbols[i] = 0;
// integrate samples into symbols
for (uint32_t m = 0; m < d_samples_per_symbol; m++)
{
if (d_satellite.get_PRN() > 0 and d_satellite.get_PRN() < 6)
{
// because last symbol of the preamble is just received now!
d_subframe_symbols[i] -=
d_symbol_history.at(i * d_samples_per_symbol + m);
}
else
{
// because last symbol of the preamble is just received now!
d_subframe_symbols[i] -=
static_cast<float>(d_secondary_code_symbols[k]) *
d_symbol_history.at(i * d_samples_per_symbol + m);
k++;
k = k % BEIDOU_B3I_SECONDARY_CODE_LENGTH;
}
}
d_subframe_symbols[i] = -d_symbol_history.at(i);
}
}
@ -578,10 +559,8 @@ int beidou_b3i_telemetry_decoder_gs::general_work(
if (d_nav.flag_crc_test == true)
{
d_CRC_error_counter = 0;
d_flag_preamble = true; // valid preamble indicator (initialized to
// false every work())
d_preamble_index =
d_sample_counter; // record the preamble sample stamp (t_P)
d_flag_preamble = true; // valid preamble indicator (initialized to false every work())
d_preamble_index = d_sample_counter; // record the preamble sample stamp (t_P)
if (!d_flag_frame_sync)
{
d_flag_frame_sync = true;
@ -595,7 +574,7 @@ int beidou_b3i_telemetry_decoder_gs::general_work(
d_preamble_index = d_sample_counter; // record the preamble sample stamp
if (d_CRC_error_counter > CRC_ERROR_LIMIT)
{
LOG(INFO) << "BeiDou DNAV frame sync lost for SAT "
DLOG(INFO) << "BeiDou DNAV frame sync lost for SAT "
<< this->d_satellite;
d_flag_frame_sync = false;
d_stat = 0;
@ -604,38 +583,50 @@ int beidou_b3i_telemetry_decoder_gs::general_work(
}
}
}
// UPDATE GNSS SYNCHRO DATA
// 2. Add the telemetry decoder information
if (this->d_flag_preamble == true and d_nav.flag_new_SOW_available == true)
// update TOW at the preamble instant
{
// Reporting sow as gps time of week
d_TOW_at_Preamble_ms = static_cast<uint32_t>((d_nav.d_SOW + 14) * 1000.0);
d_TOW_at_current_symbol_ms =
d_TOW_at_Preamble_ms + static_cast<uint32_t>((d_required_symbols + 1) *
BEIDOU_B3I_CODE_PERIOD_MS);
d_TOW_at_Preamble_ms = static_cast<uint32_t>((d_nav.d_SOW + BEIDOU_DNAV_BDT2GPST_LEAP_SEC_OFFSET) * 1000.0);
//check TOW update consistency
uint32_t last_d_TOW_at_current_symbol_ms = d_TOW_at_current_symbol_ms;
//compute new TOW
d_TOW_at_current_symbol_ms = d_TOW_at_Preamble_ms + d_required_symbols * d_symbol_duration_ms;
flag_SOW_set = true;
d_nav.flag_new_SOW_available = false;
}
else // if there is not a new preamble, we define the TOW of the current
// symbol
{
d_TOW_at_current_symbol_ms +=
static_cast<uint32_t>(BEIDOU_B3I_CODE_PERIOD_MS);
}
if (d_flag_frame_sync == true and flag_SOW_set == true)
if (last_d_TOW_at_current_symbol_ms != 0 and abs(static_cast<int64_t>(d_TOW_at_current_symbol_ms) - int64_t(last_d_TOW_at_current_symbol_ms)) > d_symbol_duration_ms)
{
current_symbol.Flag_valid_word = true;
LOG(INFO) << "Warning: BEIDOU B3I TOW update in ch " << d_channel
<< " does not match the TLM TOW counter " << static_cast<int64_t>(d_TOW_at_current_symbol_ms) - int64_t(last_d_TOW_at_current_symbol_ms) << " ms \n";
d_TOW_at_current_symbol_ms = 0;
d_flag_valid_word = false;
}
else
{
current_symbol.Flag_valid_word = false;
d_last_valid_preamble = d_sample_counter;
d_flag_valid_word = true;
}
}
else
{
if (d_flag_valid_word)
{
d_TOW_at_current_symbol_ms += d_symbol_duration_ms;
if (current_symbol.Flag_valid_symbol_output == false)
{
d_flag_valid_word = false;
}
}
}
current_symbol.PRN = this->d_satellite.get_PRN();
if (d_flag_valid_word == true)
{
current_symbol.TOW_at_current_symbol_ms = d_TOW_at_current_symbol_ms;
current_symbol.Flag_valid_word = d_flag_valid_word;
if (d_dump == true)
{
@ -644,23 +635,22 @@ int beidou_b3i_telemetry_decoder_gs::general_work(
{
double tmp_double;
uint64_t tmp_ulong_int;
tmp_double = static_cast<double>(d_TOW_at_current_symbol_ms);
tmp_double = static_cast<double>(d_TOW_at_current_symbol_ms) / 1000.0;
d_dump_file.write(reinterpret_cast<char *>(&tmp_double), sizeof(double));
tmp_ulong_int = current_symbol.Tracking_sample_counter;
d_dump_file.write(reinterpret_cast<char *>(&tmp_ulong_int), sizeof(uint64_t));
tmp_double = d_nav.d_SOW;
tmp_double = static_cast<double>(d_TOW_at_Preamble_ms) / 1000.0;
d_dump_file.write(reinterpret_cast<char *>(&tmp_double), sizeof(double));
tmp_ulong_int = static_cast<uint64_t>(d_required_symbols);
d_dump_file.write(reinterpret_cast<char *>(&tmp_ulong_int), sizeof(uint64_t));
}
catch (const std::ifstream::failure &e)
{
LOG(WARNING) << "Exception writing observables dump file " << e.what();
LOG(WARNING) << "Exception writing Telemetry GPS L5 dump file " << e.what();
}
}
// 3. Make the output (copy the object contents to the GNURadio reserved memory)
*out[0] = current_symbol;
return 1;
}
return 0;
}

21
src/algorithms/telemetry_decoder/gnuradio_blocks/beidou_b3i_telemetry_decoder_gs.h
View File

@ -60,10 +60,8 @@ public:
~beidou_b3i_telemetry_decoder_gs(); //!< Class destructor
void set_satellite(const Gnss_Satellite &satellite); //!< Set satellite PRN
void set_channel(int channel); //!< Set receiver's channel
inline void reset()
{
return;
}
void reset();
/*!
* \brief This is where all signal processing takes place
*/
@ -77,27 +75,24 @@ private:
bool dump);
beidou_b3i_telemetry_decoder_gs(const Gnss_Satellite &satellite, bool dump);
void decode_subframe(double *symbols);
void decode_word(int32_t word_counter, const double *enc_word_symbols,
void decode_subframe(float *symbols);
void decode_word(int32_t word_counter, const float *enc_word_symbols,
int32_t *dec_word_symbols);
void decode_bch15_11_01(const int32_t *bits, int32_t *decbits);
// Preamble decoding
int32_t *d_preamble_samples;
int32_t *d_secondary_code_symbols;
uint32_t d_samples_per_symbol;
int32_t d_symbols_per_preamble;
int32_t d_samples_per_preamble;
int32_t d_preamble_period_samples;
double *d_subframe_symbols;
float *d_subframe_symbols;
uint32_t d_required_symbols;
// Storage for incoming data
boost::circular_buffer<float> d_symbol_history;
// Variables for internal functionality
uint64_t d_sample_counter; // Sample counter as an index (1,2,3,..etc)
// indicating number of samples processed
uint64_t d_sample_counter; // Sample counter as an index (1,2,3,..etc) indicating number of samples processed
uint64_t d_preamble_index; // Index of sample number where preamble was found
uint32_t d_stat; // Status of decoder
bool d_flag_frame_sync; // Indicate when a frame sync is achieved
@ -109,8 +104,12 @@ private:
Beidou_Dnav_Navigation_Message d_nav;
// Values to populate gnss synchronization structure
uint32_t d_symbol_duration_ms;
uint32_t d_TOW_at_Preamble_ms;
uint32_t d_TOW_at_current_symbol_ms;
uint64_t d_last_valid_preamble;
bool d_flag_valid_word;
bool d_sent_tlm_failed_msg;
bool Flag_valid_word;
// Satellite Information and logging capacity

40
src/algorithms/tracking/gnuradio_blocks/dll_pll_veml_tracking.cc
View File

@ -286,17 +286,16 @@ dll_pll_veml_tracking::dll_pll_veml_tracking(const Dll_Pll_Conf &conf_) : gr::bl
d_code_period = BEIDOU_B1I_CODE_PERIOD;
d_code_chip_rate = BEIDOU_B1I_CODE_RATE_HZ;
d_code_length_chips = static_cast<uint32_t>(BEIDOU_B1I_CODE_LENGTH_CHIPS);
//d_symbols_per_bit = BEIDOU_B1I_TELEMETRY_SYMBOLS_PER_BIT; //todo: enable after fixing beidou symbol synchronization
d_symbols_per_bit = 1;
d_symbols_per_bit = BEIDOU_B1I_TELEMETRY_SYMBOLS_PER_BIT; //todo: enable after fixing beidou symbol synchronization
d_correlation_length_ms = 1;
d_code_samples_per_chip = 1;
d_secondary = false;
d_secondary = true;
trk_parameters.track_pilot = false;
// synchronize and remove data secondary code
d_secondary_code_length = static_cast<uint32_t>(BEIDOU_B1I_SECONDARY_CODE_LENGTH);
d_secondary_code_string = const_cast<std::string *>(&BEIDOU_B1I_SECONDARY_CODE_STR);
//d_data_secondary_code_length = static_cast<uint32_t>(BEIDOU_B1I_SECONDARY_CODE_LENGTH);
//d_data_secondary_code_string = const_cast<std::string *>(&BEIDOU_B1I_SECONDARY_CODE_STR);
d_data_secondary_code_length = static_cast<uint32_t>(BEIDOU_B1I_SECONDARY_CODE_LENGTH);
d_data_secondary_code_string = const_cast<std::string *>(&BEIDOU_B1I_SECONDARY_CODE_STR);
}
else if (signal_type == "B3")
{
@ -305,16 +304,15 @@ dll_pll_veml_tracking::dll_pll_veml_tracking(const Dll_Pll_Conf &conf_) : gr::bl
d_code_period = BEIDOU_B3I_CODE_PERIOD;
d_code_chip_rate = BEIDOU_B3I_CODE_RATE_HZ;
d_code_length_chips = static_cast<uint32_t>(BEIDOU_B3I_CODE_LENGTH_CHIPS);
//d_symbols_per_bit = BEIDOU_B3I_TELEMETRY_SYMBOLS_PER_BIT; //todo: enable after fixing beidou symbol synchronization
d_symbols_per_bit = 1;
d_symbols_per_bit = BEIDOU_B3I_TELEMETRY_SYMBOLS_PER_BIT; //todo: enable after fixing beidou symbol synchronization
d_correlation_length_ms = 1;
d_code_samples_per_chip = 1;
d_secondary = false;
trk_parameters.track_pilot = false;
d_secondary_code_length = static_cast<uint32_t>(BEIDOU_B3I_SECONDARY_CODE_LENGTH);
d_secondary_code_string = const_cast<std::string *>(&BEIDOU_B3I_SECONDARY_CODE_STR);
//d_data_secondary_code_length = static_cast<uint32_t>(BEIDOU_B3I_SECONDARY_CODE_LENGTH);
//d_data_secondary_code_string = const_cast<std::string *>(&BEIDOU_B3I_SECONDARY_CODE_STR);
d_data_secondary_code_length = static_cast<uint32_t>(BEIDOU_B3I_SECONDARY_CODE_LENGTH);
d_data_secondary_code_string = const_cast<std::string *>(&BEIDOU_B3I_SECONDARY_CODE_STR);
}
else
{
@ -651,8 +649,7 @@ void dll_pll_veml_tracking::start_tracking()
// GEO Satellites use different secondary code
if (d_acquisition_gnss_synchro->PRN > 0 and d_acquisition_gnss_synchro->PRN < 6)
{
//d_symbols_per_bit = BEIDOU_B1I_GEO_TELEMETRY_SYMBOLS_PER_BIT;//todo: enable after fixing beidou symbol synchronization
d_symbols_per_bit = 1;
d_symbols_per_bit = BEIDOU_B1I_GEO_TELEMETRY_SYMBOLS_PER_BIT; //todo: enable after fixing beidou symbol synchronization
d_correlation_length_ms = 1;
d_code_samples_per_chip = 1;
d_secondary = false;
@ -665,8 +662,7 @@ void dll_pll_veml_tracking::start_tracking()
}
else
{
//d_symbols_per_bit = BEIDOU_B1I_TELEMETRY_SYMBOLS_PER_BIT;//todo: enable after fixing beidou symbol synchronization
d_symbols_per_bit = 1;
d_symbols_per_bit = BEIDOU_B1I_TELEMETRY_SYMBOLS_PER_BIT; //todo: enable after fixing beidou symbol synchronization
d_correlation_length_ms = 1;
d_code_samples_per_chip = 1;
d_secondary = false;
@ -674,8 +670,8 @@ void dll_pll_veml_tracking::start_tracking()
// synchronize and remove data secondary code
d_secondary_code_length = static_cast<uint32_t>(BEIDOU_B1I_SECONDARY_CODE_LENGTH);
d_secondary_code_string = const_cast<std::string *>(&BEIDOU_B1I_SECONDARY_CODE_STR);
//d_data_secondary_code_length = static_cast<uint32_t>(BEIDOU_B1I_SECONDARY_CODE_LENGTH);
//d_data_secondary_code_string = const_cast<std::string *>(&BEIDOU_B1I_SECONDARY_CODE_STR);
d_data_secondary_code_length = static_cast<uint32_t>(BEIDOU_B1I_SECONDARY_CODE_LENGTH);
d_data_secondary_code_string = const_cast<std::string *>(&BEIDOU_B1I_SECONDARY_CODE_STR);
d_Prompt_circular_buffer.set_capacity(d_secondary_code_length);
}
}
@ -686,11 +682,10 @@ void dll_pll_veml_tracking::start_tracking()
// Update secondary code settings for geo satellites
if (d_acquisition_gnss_synchro->PRN > 0 and d_acquisition_gnss_synchro->PRN < 6)
{
//d_symbols_per_bit = BEIDOU_B3I_GEO_TELEMETRY_SYMBOLS_PER_BIT;//todo: enable after fixing beidou symbol synchronization
d_symbols_per_bit = 1;
d_symbols_per_bit = BEIDOU_B3I_GEO_TELEMETRY_SYMBOLS_PER_BIT; //todo: enable after fixing beidou symbol synchronization
d_correlation_length_ms = 1;
d_code_samples_per_chip = 1;
d_secondary = false;
d_secondary = true;
trk_parameters.track_pilot = false;
// set the preamble in the secondary code acquisition
d_secondary_code_length = static_cast<uint32_t>(BEIDOU_B3I_GEO_PREAMBLE_LENGTH_SYMBOLS);
@ -700,17 +695,16 @@ void dll_pll_veml_tracking::start_tracking()
}
else
{
//d_symbols_per_bit = BEIDOU_B3I_TELEMETRY_SYMBOLS_PER_BIT; //todo: enable after fixing beidou symbol synchronization
d_symbols_per_bit = 1;
d_symbols_per_bit = BEIDOU_B3I_TELEMETRY_SYMBOLS_PER_BIT; //todo: enable after fixing beidou symbol synchronization
d_correlation_length_ms = 1;
d_code_samples_per_chip = 1;
d_secondary = false;
d_secondary = true;
trk_parameters.track_pilot = false;
// synchronize and remove data secondary code
d_secondary_code_length = static_cast<uint32_t>(BEIDOU_B3I_SECONDARY_CODE_LENGTH);
d_secondary_code_string = const_cast<std::string *>(&BEIDOU_B3I_SECONDARY_CODE_STR);
//d_data_secondary_code_length = static_cast<uint32_t>(BEIDOU_B3I_SECONDARY_CODE_LENGTH);
//d_data_secondary_code_string = const_cast<std::string *>(&BEIDOU_B3I_SECONDARY_CODE_STR);
d_data_secondary_code_length = static_cast<uint32_t>(BEIDOU_B3I_SECONDARY_CODE_LENGTH);
d_data_secondary_code_string = const_cast<std::string *>(&BEIDOU_B3I_SECONDARY_CODE_STR);
d_Prompt_circular_buffer.set_capacity(d_secondary_code_length);
}
}

35
src/core/system_parameters/Beidou_B1I.h
View File

@ -36,45 +36,26 @@
#include <cstdint>
#include <string>
// Physical constants
const double BEIDOU_C_M_S = 299792458.0; //!< The speed of light, [m/s]
const double BEIDOU_C_M_MS = 299792.4580; //!< The speed of light, [m/ms]
const double BEIDOU_PI = 3.1415926535898; //!< Pi
const double BEIDOU_TWO_PI = 6.283185307179586; //!< 2Pi
const double BEIDOU_OMEGA_EARTH_DOT = 7.2921150e-5; //!< Earth rotation rate, [rad/s] as defined in CGCS2000
const double BEIDOU_GM = 3.986004418e14; //!< Universal gravitational constant times the mass of the Earth, [m^3/s^2] as defined in CGCS2000
const double BEIDOU_F = -4.442807309e-10; //!< Constant, [s/(m)^(1/2)] F=-2(GM)^.5/C^2
// carrier and code frequencies
const double BEIDOU_B1I_FREQ_HZ = 1.561098e9; //!< B1I [Hz]
const double BEIDOU_B1I_CODE_RATE_HZ = 2.046e6; //!< Beidou B1I code rate [chips/s]
const double BEIDOU_B1I_CODE_LENGTH_CHIPS = 2046.0; //!< Beidou B1I code length [chips]
const double BEIDOU_B1I_CODE_PERIOD = 0.001; //!< Beidou B1I code period [seconds]
const uint32_t BEIDOU_B1I_CODE_PERIOD_MS = 1; //!< Beidou B1I code period [ms]
const double BEIDOU_B1I_CHIP_PERIOD = 4.8875e-07; //!< Beidou B1I chip period [seconds]
const int32_t BEIDOU_B1I_SECONDARY_CODE_LENGTH = 20;
const std::string BEIDOU_B1I_SECONDARY_CODE = "00000100110101001110";
const std::string BEIDOU_B1I_SECONDARY_CODE_STR = "00000100110101001110";
const std::string BEIDOU_B1I_GEO_PREAMBLE_SYMBOLS_STR = {"1111110000001100001100"};
const int32_t BEIDOU_B1I_GEO_PREAMBLE_LENGTH_SYMBOLS = 22;
const std::string BEIDOU_B1I_D2_SECONDARY_CODE_STR = "00";
const int BEIDOU_B1I_PREAMBLE_LENGTH_BITS = 11;
const int BEIDOU_B1I_PREAMBLE_LENGTH_SYMBOLS = 220; // **************
const uint32_t BEIDOU_B1I_PREAMBLE_LENGTH_BITS = 11;
const uint32_t BEIDOU_B1I_PREAMBLE_LENGTH_SYMBOLS = 220;
const double BEIDOU_B1I_PREAMBLE_DURATION_S = 0.220;
const int BEIDOU_B1I_PREAMBLE_DURATION_MS = 220;
const int BEIDOU_B1I_TELEMETRY_RATE_BITS_SECOND = 50; //!< D1 NAV message bit rate [bits/s]
const int BEIDOU_B1I_TELEMETRY_SYMBOLS_PER_BIT = 20;
const int BEIDOU_B1I_GEO_TELEMETRY_SYMBOLS_PER_BIT = 2;
const int BEIDOU_B1I_TELEMETRY_SYMBOL_PERIOD_MS = BEIDOU_B1I_TELEMETRY_SYMBOLS_PER_BIT * BEIDOU_B1I_CODE_PERIOD_MS;
const int BEIDOU_B1I_TELEMETRY_RATE_SYMBOLS_SECOND = BEIDOU_B1I_TELEMETRY_RATE_BITS_SECOND * BEIDOU_B1I_TELEMETRY_SYMBOLS_PER_BIT; //************!< NAV message bit rate [symbols/s]
const int BEIDOU_WORD_LENGTH = 4; //**************!< CRC + BEIDOU WORD (-2 -1 0 ... 29) Bits = 4 bytes
const int BEIDOU_SUBFRAME_LENGTH = 40; //**************!< BEIDOU_WORD_LENGTH x 10 = 40 bytes
const int BEIDOU_DNAV_SUBFRAME_DATA_BITS = 300; //!< Number of bits per subframe in the NAV message [bits]
const int BEIDOU_SUBFRAME_SECONDS = 6; //!< Subframe duration [seconds]
const int BEIDOU_SUBFRAME_MS = 6000; //!< Subframe duration [milliseconds]
const int BEIDOU_WORD_BITS = 30; //!< Number of bits per word in the NAV message [bits]
const int32_t BEIDOU_B1I_PREAMBLE_DURATION_MS = 220;
const int32_t BEIDOU_B1I_TELEMETRY_RATE_BITS_SECOND = 50;
const int32_t BEIDOU_B1I_TELEMETRY_SYMBOLS_PER_BIT = 20;
const int32_t BEIDOU_B1I_GEO_TELEMETRY_SYMBOLS_PER_BIT = 2;
const int32_t BEIDOU_B1I_TELEMETRY_SYMBOL_PERIOD_MS = BEIDOU_B1I_TELEMETRY_SYMBOLS_PER_BIT * BEIDOU_B1I_CODE_PERIOD_MS;
const int32_t BEIDOU_B1I_TELEMETRY_RATE_SYMBOLS_SECOND = BEIDOU_B1I_TELEMETRY_RATE_BITS_SECOND * BEIDOU_B1I_TELEMETRY_SYMBOLS_PER_BIT;
#endif /* GNSS_SDR_BEIDOU_B1I_H_ */

5
src/core/system_parameters/Beidou_B3I.h
View File

@ -42,7 +42,6 @@ const double BEIDOU_B3I_CODE_LENGTH_CHIPS = 10230.0; //!< BeiDou B3I code lengt
const double BEIDOU_B3I_CODE_PERIOD = 0.001; //!< BeiDou B3I code period [seconds]
const uint32_t BEIDOU_B3I_CODE_PERIOD_MS = 1; //!< BeiDou B3I code period [ms]
const int32_t BEIDOU_B3I_SECONDARY_CODE_LENGTH = 20;
const std::string BEIDOU_B3I_SECONDARY_CODE = "00000100110101001110";
const std::string BEIDOU_B3I_SECONDARY_CODE_STR = "00000100110101001110";
const std::string BEIDOU_B3I_GEO_PREAMBLE_SYMBOLS_STR = {"1111110000001100001100"};
const int32_t BEIDOU_B3I_GEO_PREAMBLE_LENGTH_SYMBOLS = 22;
@ -54,6 +53,8 @@ const int32_t BEIDOU_B3I_PREAMBLE_DURATION_MS = 220;
const int32_t BEIDOU_B3I_TELEMETRY_RATE_BITS_SECOND = 50; //!< D1 NAV message bit rate [bits/s]
const int32_t BEIDOU_B3I_TELEMETRY_SYMBOLS_PER_BIT = 20;
const int32_t BEIDOU_B3I_GEO_TELEMETRY_SYMBOLS_PER_BIT = 2; // *************
const int32_t BEIDOU_B3I_TELEMETRY_RATE_SYMBOLS_SECOND = BEIDOU_B3I_TELEMETRY_RATE_BITS_SECOND * BEIDOU_B3I_TELEMETRY_SYMBOLS_PER_BIT; //************!< NAV message bit rate [symbols/s]
const int32_t BEIDOU_B3I_TELEMETRY_SYMBOL_PERIOD_MS = BEIDOU_B3I_TELEMETRY_SYMBOLS_PER_BIT * BEIDOU_B3I_CODE_PERIOD_MS;
const int32_t BEIDOU_B3I_TELEMETRY_RATE_SYMBOLS_SECOND = BEIDOU_B3I_TELEMETRY_RATE_BITS_SECOND * BEIDOU_B3I_TELEMETRY_SYMBOLS_PER_BIT;
#endif /* GNSS_SDR_BEIDOU_B3I_H_ */

15
src/core/system_parameters/Beidou_DNAV.h
View File

@ -38,19 +38,28 @@
const double BEIDOU_DNAV_C_M_S = 299792458.0; //!< The speed of light, [m/s]
const double BEIDOU_DNAV_C_M_MS = 299792.4580; //!< The speed of light, [m/ms]
const double BEIDOU_DNAV_PI = 3.1415926535898; //!< Pi
const double BEIDOU_DNAV_TWO_PI = 6.283185307179586; //!< 2Pi
const double BEIDOU_DNAV_PI = 3.1415926535898; //!< BeiDou DNAV Pi
const double BEIDOU_DNAV_TWO_PI = 6.2831853071796; //!< BeiDou DNAV 2Pi
const double BEIDOU_DNAV_OMEGA_EARTH_DOT = 7.2921150e-5; //!< Earth rotation rate, [rad/s] as defined in CGCS2000
const double BEIDOU_DNAV_GM = 3.986004418e14; //!< Universal gravitational constant times the mass of the Earth, [m^3/s^2] as defined in CGCS2000
const double BEIDOU_DNAV_F = -4.442807309e-10; //!< Constant, [s/(m)^(1/2)] F=-2(GM)^.5/C^2
const int32_t BEIDOU_DNAV_PREAMBLE_LENGTH_BITS = 11;
const int32_t BEIDOU_DNAV_PREAMBLE_LENGTH_SYMBOLS = 11; // **************
const double BEIDOU_DNAV_PREAMBLE_PERIOD_SYMBOLS = 300;
const double BEIDOU_DNAV_SUBFRAME_SYMBOLS = 300;
const double BEIDOU_DNAV_DATA_BITS = 300;
const int32_t BEIDOU_DNAV_SUBFRAME_DATA_BITS = 300; //!< Number of bits per subframe in the NAV message [bits]
const double BEIDOU_DNAV_WORDS_SUBFRAME = 10;
const double BEIDOU_DNAV_WORD_LENGTH_BITS = 30;
const double BEIDOU_D1NAV_SYMBOL_RATE_SPS = 50;
const double BEIDOU_D2NAV_SYMBOL_RATE_SPS = 500;
const std::string BEIDOU_DNAV_PREAMBLE = "11100010010";
// Number of leap seconds passed from the start of the GPS epoch up to the start of BeiDou epoch
const int32_t BEIDOU_DNAV_BDT2GPST_LEAP_SEC_OFFSET = 14;
// Number of weeks passed from the start of the GPS epoch up to the start of BeiDou epoch
const int32_t BEIDOU_DNAV_BDT2GPST_WEEK_NUM_OFFSET = 1356;
// BEIDOU D1 NAVIGATION MESSAGE STRUCTURE
// GENERAL
const std::vector<std::pair<int32_t, int32_t> > D1_PRE({{1, 11}});

26
src/core/system_parameters/beidou_dnav_ephemeris.cc
View File

@ -29,7 +29,7 @@
*/
#include "beidou_dnav_ephemeris.h"
#include "Beidou_B1I.h"
#include "Beidou_DNAV.h"
#include "gnss_satellite.h"
#include <cmath>
@ -148,14 +148,14 @@ double Beidou_Dnav_Ephemeris::sv_clock_relativistic_term(double transmitTime)
tk = check_t(transmitTime - d_Toe);
// Computed mean motion
n0 = sqrt(BEIDOU_GM / (a * a * a));
n0 = sqrt(BEIDOU_DNAV_GM / (a * a * a));
// Corrected mean motion
n = n0 + d_Delta_n;
// Mean anomaly
M = d_M_0 + n * tk;
// Reduce mean anomaly to between 0 and 2pi
M = fmod((M + 2.0 * BEIDOU_PI), (2.0 * BEIDOU_PI));
M = fmod((M + 2.0 * BEIDOU_DNAV_PI), (2.0 * BEIDOU_DNAV_PI));
// Initial guess of eccentric anomaly
E = M;
@ -165,7 +165,7 @@ double Beidou_Dnav_Ephemeris::sv_clock_relativistic_term(double transmitTime)
{
E_old = E;
E = M + d_eccentricity * sin(E);
dE = fmod(E - E_old, 2.0 * BEIDOU_PI);
dE = fmod(E - E_old, 2.0 * BEIDOU_DNAV_PI);
if (fabs(dE) < 1e-12)
{
//Necessary precision is reached, exit from the loop
@ -174,7 +174,7 @@ double Beidou_Dnav_Ephemeris::sv_clock_relativistic_term(double transmitTime)
}
// Compute relativistic correction term
d_dtr = BEIDOU_F * d_eccentricity * d_sqrt_A * sin(E);
d_dtr = BEIDOU_DNAV_F * d_eccentricity * d_sqrt_A * sin(E);
return d_dtr;
}
@ -205,7 +205,7 @@ double Beidou_Dnav_Ephemeris::satellitePosition(double transmitTime)
tk = check_t(transmitTime - d_Toe);
// Computed mean motion
n0 = sqrt(BEIDOU_GM / (a * a * a));
n0 = sqrt(BEIDOU_DNAV_GM / (a * a * a));
// Corrected mean motion
n = n0 + d_Delta_n;
@ -214,7 +214,7 @@ double Beidou_Dnav_Ephemeris::satellitePosition(double transmitTime)
M = d_M_0 + n * tk;
// Reduce mean anomaly to between 0 and 2pi
M = fmod((M + 2.0 * BEIDOU_PI), (2.0 * BEIDOU_PI));
M = fmod((M + 2.0 * BEIDOU_DNAV_PI), (2.0 * BEIDOU_DNAV_PI));
// Initial guess of eccentric anomaly
E = M;
@ -224,7 +224,7 @@ double Beidou_Dnav_Ephemeris::satellitePosition(double transmitTime)
{
E_old = E;
E = M + d_eccentricity * sin(E);
dE = fmod(E - E_old, 2.0 * BEIDOU_PI);
dE = fmod(E - E_old, 2.0 * BEIDOU_DNAV_PI);
if (fabs(dE) < 1e-12)
{
//Necessary precision is reached, exit from the loop
@ -241,7 +241,7 @@ double Beidou_Dnav_Ephemeris::satellitePosition(double transmitTime)
phi = nu + d_OMEGA;
// Reduce phi to between 0 and 2*pi rad
phi = fmod((phi), (2.0 * BEIDOU_PI));
phi = fmod((phi), (2.0 * BEIDOU_DNAV_PI));
// Correct argument of latitude
u = phi + d_Cuc * cos(2.0 * phi) + d_Cus * sin(2.0 * phi);
@ -253,10 +253,10 @@ double Beidou_Dnav_Ephemeris::satellitePosition(double transmitTime)
i = d_i_0 + d_IDOT * tk + d_Cic * cos(2.0 * phi) + d_Cis * sin(2.0 * phi);
// Compute the angle between the ascending node and the Greenwich meridian
Omega = d_OMEGA0 + (d_OMEGA_DOT - BEIDOU_OMEGA_EARTH_DOT) * tk - BEIDOU_OMEGA_EARTH_DOT * d_Toe;
Omega = d_OMEGA0 + (d_OMEGA_DOT - BEIDOU_DNAV_OMEGA_EARTH_DOT) * tk - BEIDOU_DNAV_OMEGA_EARTH_DOT * d_Toe;
// Reduce to between 0 and 2*pi rad
Omega = fmod((Omega + 2.0 * BEIDOU_PI), (2.0 * BEIDOU_PI));
Omega = fmod((Omega + 2.0 * BEIDOU_DNAV_PI), (2.0 * BEIDOU_DNAV_PI));
// --- Compute satellite coordinates in Earth-fixed coordinates
d_satpos_X = cos(u) * r * cos(Omega) - sin(u) * r * cos(i) * sin(Omega);
@ -264,7 +264,7 @@ double Beidou_Dnav_Ephemeris::satellitePosition(double transmitTime)
d_satpos_Z = sin(u) * r * sin(i);
// Satellite's velocity. Can be useful for Vector Tracking loops
double Omega_dot = d_OMEGA_DOT - BEIDOU_OMEGA_EARTH_DOT;
double Omega_dot = d_OMEGA_DOT - BEIDOU_DNAV_OMEGA_EARTH_DOT;
d_satvel_X = -Omega_dot * (cos(u) * r + sin(u) * r * cos(i)) + d_satpos_X * cos(Omega) - d_satpos_Y * cos(i) * sin(Omega);
d_satvel_Y = Omega_dot * (cos(u) * r * cos(Omega) - sin(u) * r * cos(i) * sin(Omega)) + d_satpos_X * sin(Omega) + d_satpos_Y * cos(i) * cos(Omega);
d_satvel_Z = d_satpos_Y * sin(i);
@ -275,7 +275,7 @@ double Beidou_Dnav_Ephemeris::satellitePosition(double transmitTime)
double dtr_s = d_A_f0 + d_A_f1 * tk + d_A_f2 * tk * tk;
/* relativity correction */
dtr_s -= 2.0 * sqrt(BEIDOU_GM * a) * d_eccentricity * sin(E) / (BEIDOU_C_M_S * BEIDOU_C_M_S);
dtr_s -= 2.0 * sqrt(BEIDOU_DNAV_GM * a) * d_eccentricity * sin(E) / (BEIDOU_DNAV_C_M_S * BEIDOU_DNAV_C_M_S);
return dtr_s;
}

16
src/core/system_parameters/beidou_dnav_navigation_message.cc
View File

@ -382,7 +382,7 @@ void Beidou_Dnav_Navigation_Message::satellitePosition(double transmitTime)
tk = check_t(transmitTime - d_Toe_sf2);
// Computed mean motion
n0 = sqrt(BEIDOU_GM / (a * a * a));
n0 = sqrt(BEIDOU_DNAV_GM / (a * a * a));
// Corrected mean motion
n = n0 + d_Delta_n;
@ -391,7 +391,7 @@ void Beidou_Dnav_Navigation_Message::satellitePosition(double transmitTime)
M = d_M_0 + n * tk;
// Reduce mean anomaly to between 0 and 2pi
M = fmod((M + 2 * BEIDOU_PI), (2 * BEIDOU_PI));
M = fmod((M + 2 * BEIDOU_DNAV_PI), (2 * BEIDOU_DNAV_PI));
// Initial guess of eccentric anomaly
E = M;
@ -401,7 +401,7 @@ void Beidou_Dnav_Navigation_Message::satellitePosition(double transmitTime)
{
E_old = E;
E = M + d_eccentricity * sin(E);
dE = fmod(E - E_old, 2 * BEIDOU_PI);
dE = fmod(E - E_old, 2 * BEIDOU_DNAV_PI);
if (fabs(dE) < 1e-12)
{
//Necessary precision is reached, exit from the loop
@ -410,7 +410,7 @@ void Beidou_Dnav_Navigation_Message::satellitePosition(double transmitTime)
}
// Compute relativistic correction term
d_dtr = BEIDOU_F * d_eccentricity * d_sqrt_A * sin(E);
d_dtr = BEIDOU_DNAV_F * d_eccentricity * d_sqrt_A * sin(E);
// Compute the true anomaly
double tmp_Y = sqrt(1.0 - d_eccentricity * d_eccentricity) * sin(E);
@ -421,7 +421,7 @@ void Beidou_Dnav_Navigation_Message::satellitePosition(double transmitTime)
phi = nu + d_OMEGA;
// Reduce phi to between 0 and 2*pi rad
phi = fmod((phi), (2 * BEIDOU_PI));
phi = fmod((phi), (2 * BEIDOU_DNAV_PI));
// Correct argument of latitude
u = phi + d_Cuc * cos(2 * phi) + d_Cus * sin(2 * phi);
@ -433,10 +433,10 @@ void Beidou_Dnav_Navigation_Message::satellitePosition(double transmitTime)
i = d_i_0 + d_IDOT * tk + d_Cic * cos(2 * phi) + d_Cis * sin(2 * phi);
// Compute the angle between the ascending node and the Greenwich meridian
Omega = d_OMEGA0 + (d_OMEGA_DOT - BEIDOU_OMEGA_EARTH_DOT) * tk - BEIDOU_OMEGA_EARTH_DOT * d_Toe_sf2;
Omega = d_OMEGA0 + (d_OMEGA_DOT - BEIDOU_DNAV_OMEGA_EARTH_DOT) * tk - BEIDOU_DNAV_OMEGA_EARTH_DOT * d_Toe_sf2;
// Reduce to between 0 and 2*pi rad
Omega = fmod((Omega + 2 * BEIDOU_PI), (2 * BEIDOU_PI));
Omega = fmod((Omega + 2 * BEIDOU_DNAV_PI), (2 * BEIDOU_DNAV_PI));
// --- Compute satellite coordinates in Earth-fixed coordinates
d_satpos_X = cos(u) * r * cos(Omega) - sin(u) * r * cos(i) * sin(Omega);
@ -444,7 +444,7 @@ void Beidou_Dnav_Navigation_Message::satellitePosition(double transmitTime)
d_satpos_Z = sin(u) * r * sin(i);
// Satellite's velocity. Can be useful for Vector Tracking loops
double Omega_dot = d_OMEGA_DOT - BEIDOU_OMEGA_EARTH_DOT;
double Omega_dot = d_OMEGA_DOT - BEIDOU_DNAV_OMEGA_EARTH_DOT;
d_satvel_X = -Omega_dot * (cos(u) * r + sin(u) * r * cos(i)) + d_satpos_X * cos(Omega) - d_satpos_Y * cos(i) * sin(Omega);
d_satvel_Y = Omega_dot * (cos(u) * r * cos(Omega) - sin(u) * r * cos(i) * sin(Omega)) + d_satpos_X * sin(Omega) + d_satpos_Y * cos(i) * cos(Omega);
d_satvel_Z = d_satpos_Y * sin(i);

12
src/utils/matlab/gps_l1_ca_telemetry_plot_sample.m
View File

@ -27,9 +27,9 @@
%
close all;clear;
samplingFreq = 25000000; %[Hz]
channels=[0:9];
path='/home/dmiralles/Documents/gnss-sdr/';
samplingFreq = 10000000; %[Hz]
channels=[0:17];
path='/home/dmiralles/Documents/gnss-sdr/build/';
addpath('libs/');
clear PRN_absolute_sample_start;
for N=1:1:length(channels)
@ -39,12 +39,12 @@ end
%% Plotting values
%--- Configurations
chn_num_a = 6;
chn_num_b = 2;
chn_num_a = 11;
chn_num_b = 3;
%--- Plot results
figure;
plot(GNSS_telemetry(chn_num_a).tracking_sample_counter, ...
GNSS_telemetry(chn_num_a).tow_current_symbol_ms, 'b+');
GNSS_telemetry(chn_num_a).tow_current_symbol_ms/1000, 'b+');
hold on;
grid on;
plot(GNSS_telemetry(chn_num_b).tracking_sample_counter, ...