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Commit Graph

3669 Commits

Author SHA1 Message Date
Gastd
e6417032a9 Merge branch 'glonass' of https://github.com/gnss-sdr/gnss-sdr into glonass 2017-10-03 17:50:07 -03:00
Damian Miralles
c5a690cf1e GLONASS Observables: Fixes bug in TOW updating
Fixes bug in TOW update when a new value has been computed. This adds a
new flag to keep track of TOW update given the tk component. The code
fix improves the pseudorange measurement for code
2017-10-03 15:26:02 +02:00
Damian Miralles
e5e9cc97ad bugfix: Fixes accumulation length for carrier lock detectors
Based on reference [2] of the lock_detectors file the accumulation
length for GLONASS satellite should be reduced to 10 ms instead of the
default value of 20. Because of the meander sequence of GLONASS system
the effective data bit is of length 10 ms as seen by tracking modules
2017-10-03 15:26:02 +02:00
Damian Miralles
cd0d65ecc0 bugfix: Fix computation of TOW value for GLONASS GNAV
Fixes the TOW computation mapping from GLONASS Time to UTC time and then
conversion to TOW and WN. The logic of the conversion considers time
offsets but  may need to be reviewed.
2017-10-03 15:26:02 +02:00
Damian Miralles
d8f697401e bugfix: Fixes bugs with units in GNAV Almanac decoding
Forces conversion of semicircles to radians units  in some GNAV Almanac
parameters. In addition, adds safeguards in code to avoid invalid
slot number identification.
2017-10-03 15:26:02 +02:00
Damian Miralles
c4c90dcad2 feature: Remove satellite position computation from GNAV Almanac
Removes the satellite position computation from the GNAV Almanac object
since it does not seems to be a great usage at the moment. Possible
addition of the fields should be added to the RTKLib API
2017-10-03 15:26:02 +02:00
Damian Miralles
529da490c3 bugfix: Fixes reporting for new almanac data
Adds code to update the almanac information for satellites when decoded
by reducing the flags for the update. Almanac update is now reported
when the 2 required strings are decoded.
2017-10-03 15:26:02 +02:00
Damian Miralles
4d844cfa43 bugfix: Adds conversion from relative code to data bits
Adds conversion from relative code to data bits while decoding GLONASS
GNAV data. It also fixes bugs with CRC computation and extraction of
data from navigation message
2017-10-03 15:26:02 +02:00
Carles Fernandez
e352978777 Implement the non-blocking option for complex shorts
Apply GNU-style indentation
Add Cillian to files copyright
Delete multithread_acquisition block
2017-10-03 13:47:55 +02:00
Damian Miralles
e0dfd90916 GLONASS Observables: Fixes bug in TOW updating
Fixes bug in TOW update when a new value has been computed. This adds a
new flag to keep track of TOW update given the tk component. The code
fix improves the pseudorange measurement for code
2017-10-02 23:00:45 -06:00
Damian Miralles
7cc27df082 bugfix: Fixes accumulation length for carrier lock detectors
Based on reference [2] of the lock_detectors file the accumulation
length for GLONASS satellite should be reduced to 10 ms instead of the
default value of 20. Because of the meander sequence of GLONASS system
the effective data bit is of length 10 ms as seen by tracking modules
2017-09-30 12:54:08 -06:00
Damian Miralles
081a78f603 bugfix: Fix computation of TOW value for GLONASS GNAV
Fixes the TOW computation mapping from GLONASS Time to UTC time and then
conversion to TOW and WN. The logic of the conversion considers time
offsets but  may need to be reviewed.
2017-09-22 12:16:26 -06:00
Damian Miralles
c22cc63f31 Merge branch 'glonass_dec' of github.com:dmiralles2009/gnss-sdr into glonass_dec 2017-09-20 08:44:36 -06:00
Damian Miralles
2ab93f2599 bugfix: Fixes bugs with units in GNAV Almanac decoding
Forces conversion of semicircles to radians units  in some GNAV Almanac
parameters. In addition, adds safeguards in code to avoid invalid
slot number identification.
2017-09-20 08:42:01 -06:00
Damian Miralles
fa235e29a4 feature: Remove satellite position computation from GNAV Almanac
Removes the satellite position computation from the GNAV Almanac object
since it does not seems to be a great usage at the moment. Possible
addition of the fields should be added to the RTKLib API
2017-09-18 15:52:09 -06:00
Gastd
a879f2c5b3 Merge branch 'glonass' of https://github.com/gnss-sdr/gnss-sdr into glonass 2017-09-18 13:40:21 -03:00
Damian Miralles
c1df56b7e3 bugfix: Fixes reporting for new almanac data
Adds code to update the almanac information for satellites when decoded
by reducing the flags for the update. Almanac update is now reported
when the 2 required strings are decoded.
2017-09-16 13:07:34 -06:00
Cillian O'Driscoll
b90da8e1f5 Merge remote-tracking branch 'carles/odrisci-non_blocking_acq-test' into non_blocking_acq 2017-09-16 15:08:54 +01:00
Cillian O'Driscoll
aaf4ca94e8 Fixed logic in pcps_acquisition_cc
Previously didn't actually check for positive or negative acquisition
until the call to general_work *after* the one in which the detection
statistics were generated
2017-09-16 14:57:50 +01:00
Cillian O'Driscoll
94f0df8ebe Make use of start() and stop() in pcps_acquisition_cc
This is a more natural place to start and stop threads in gnuradio
blocks
2017-09-16 14:55:56 +01:00
Damian Miralles
0c65a4eb7c bugfix: Adds conversion from relative code to data bits
Adds conversion from relative code to data bits while decoding GLONASS
GNAV data. It also fixes bugs with CRC computation and extraction of
data from navigation message
2017-09-15 22:25:37 -06:00
Carles Fernandez
0857892ded Merge branch 'next' of https://github.com/gnss-sdr/gnss-sdr into odrisci-non_blocking_acq-test 2017-09-16 01:52:46 +02:00
Carles Fernandez
00ba4ff96e Merge branch 'next' of https://github.com/gnss-sdr/gnss-sdr into glonass 2017-09-16 01:45:53 +02:00
Carles Fernandez
94dfef74c1 Add cpu_multicorrelator_real_codes_test
and minor cosmetics
2017-09-16 01:14:15 +02:00
Gastd
a41255ab48 Merge remote-tracking branch 'upstream/glonass' into glonass 2017-09-15 14:53:50 -03:00
Carles Fernandez
3cf1fdfd92 Test waits for the block message to emit a message 2017-09-15 16:12:52 +02:00
Carles Fernandez
ba1a143094 Minor fixes
Avoid C-syle casts
Always terminate case with break
Consume ninput_items[0] if case=1
2017-09-15 16:09:02 +02:00
Gastd
385661bf59 Add carrier frequency variable 2017-09-14 20:39:15 +02:00
Gastd
7273c227e4 Add missing headers 2017-09-14 20:39:15 +02:00
Gastd
69e54c32c0 Add carrier frequency variable 2017-09-14 13:19:27 -03:00
Gastd
67312f9f78 Add missing headers 2017-09-13 20:55:09 -03:00
Cillian O'Driscoll
ba3d7bfcd8 Added 'blocking' option to pcps_acquisition_cc
Using C++ 11 threading routines to create a worker thread that can
perform the FFT for acquisition in a non-blocking manner. By default
'blocking' is set to true, which is identical to the previous behaviour
(with the added overhead of an extra thread). When 'blocking' is set to
false, then the main thread does not wait for the worker, thereby
letting the receiver continue even when the FFT thread is working. This
is very useful for using FFT acquisition at higher sampling rates, where
the FFT cannot be performed in real-time.

The aim is to replace the separate pcps_multithread_acquisition_cc.

TODO: implement the same thing for the pcps_acquisition_sc
2017-09-11 16:37:14 +01:00
Cillian O'Driscoll
9ec5558143 Use cpu_multicorrelator_real_codes
For galileo_e1_dll_pll_veml_tracking_cc and gps_l1_ca_dll_pll_tracking_cc

Note this gives some significant performance improvement for higher
sampling rates
2017-09-11 15:22:32 +01:00
Cillian O'Driscoll
e87522880e Added ability to generate real valued codes
Only done for GPS L1 C/A and Galileo E1 OS for now. Also added a
cpu_multicorrelator_real_codes class that performs code correlation
using real-valued local codes
2017-09-11 15:21:05 +01:00
Cillian O'Driscoll
676c1506da Updated volk_gnsssdr_module for real codes
Added 16i and 32f resamplers and 32fc_32f and 16ic_16i rotator dot product to
enable use of real (rather than complex) local code replicas
2017-09-11 15:15:27 +01:00
Carles Fernandez
1fc06067d4 Replace internal_fs_hz by intrenal_fs_sps 2017-09-10 11:29:32 +02:00
Carles Fernandez
667fbd58ff Merge branch 'next' of https://github.com/gnss-sdr/gnss-sdr into glonass 2017-09-10 11:24:51 +02:00
Carles Fernandez
9812751819 Merge branch 'dmiralles2009-glonass_dec' into glonass 2017-09-10 11:08:52 +02:00
Carles Fernandez
e60c93da72 Remove extraneous parentheses warnings 2017-09-10 11:04:53 +02:00
Carles Fernandez
047d9af6a3 Merge branch 'glonass_dec' of https://github.com/dmiralles2009/gnss-sdr into dmiralles2009-glonass_dec 2017-09-10 10:51:17 +02:00
Damian Miralles
2946d36f84 bugfix: Solves shared freq channel ambiguity and carr freq in plots
Adds code to solve the shared frequency channels for GLONASS satellites
during acq and trk, it is now decode responsability to fix the identifier
when decoding of ephemeris happens. It also adds more details in tracking
plotting and fixes silly bug that created false alarm.
2017-09-09 13:44:35 -06:00
Damian Miralles
778fa4f5f8 bugfix: Fixes bug for carrier frequency in pcps_acq for GLONASS
The code fixes the computation of the carrier frequency for pcps
acquisition of GLONASS satellites by making it relative to the IF. Also
new plotting features are added to visualize results
2017-09-07 21:59:27 -06:00
Carles Fernandez
3f557eeb41 Warn the user about the change in parameter name 2017-09-03 23:56:41 +02:00
Carles Fernandez
0ac2f7bd74 The global parameter name GNSS-SDR.internal_fs_hz has been replaced by
GNSS-SDR.internal_fs_sps
2017-09-02 11:36:19 +02:00
Carles Fernandez
c474ea31d5 Merge branch 'next' of https://github.com/carlesfernandez/gnss-sdr into glonass 2017-09-02 11:27:18 +02:00
Carles Fernandez
dc18980194 The global parameter name GNSS-SDR.internal_fs_hz has been replaced by
GNSS-SDR.internal_fs_sps

The old name was misleading, since the units are samples per second and
not Hertz. 

Backward compatibility is kept, so this change does not break any
existing configuration.
2017-09-02 11:24:44 +02:00
Damian Miralles
a3d2c563c9 Fixing bugs and adding plotting tool for GLONASS measurements
Adds tracking results plot for GLONASS processing following code for
GPS. Also fix a couple of bugs in the code and address bugs from
acq and trk modules
2017-08-31 20:51:40 -06:00
Damian Miralles
6b8973efe2 Fixing bugs in telemetry decoder code 2017-08-31 16:51:50 -06:00
Damian Miralles
e5ffc2b46c Adding proper TOW computation for GLONASS processing 2017-08-31 09:57:30 -06:00
Damian Miralles
0caa7fff15 Fixes ineficiencies in the code, remove unused variables 2017-08-31 09:57:30 -06:00