- Restore true chip semantics for L1: QZSS_L1_CHIP_RATE is 1.023 Mcps and
QZSS_L1_CODE_LENGTH is 1023 chips again. The replica carries
QZSS_L1_SAMPLES_PER_CHIP = 2 samples per chip (L1 C/A chips duplicated,
L1 C/B sinBOC(1,1) subchips), following the Galileo E1 approach. The
generated waveform is unchanged, but Tracking_1J.early_late_space_chips
is expressed in chips again, consistently with all other signals.
- Normalize the DLL discriminator with the sinBOC(1,1) correlation
function when the tracked PRN broadcasts L1 C/B, selected per PRN in
start_tracking(); warn if the configured correlator spacing falls
outside the BOC(1,1) correlation main peak (> 0.33 chips).
- Attribute L1 C/B observables and ephemerides (PRN 203-206) to the PRN
of the satellite's nominal PNT signals (RINEX 4.00, Table 6), so RINEX,
RTCM and rtklib identify the transmitting satellite correctly and
multi-frequency observations of the same satellite are paired instead
of counted twice.
- Do not search QZSS L5 signals for PRNs above 202, which have no L5
PRN code assigned in IS-QZSS-PNT.
- Remove reserved, non-operational PRNs 198 and 202 from the default
QZSS search list; they remain selectable via the QZSS.prns option.
- Fix a potential std::out_of_range in
GNSSFlowgraph::priorize_satellites() when assisted acquisition
prioritizes satellites of a constellation with only a subset of its
signals configured.
The Monitor block is fed from the Observables output, which only
produced data for channels with a decoded time of week. Galileo E6
channels cannot obtain the TOW from HAS pages alone, so E6-only
configurations never produced any Monitor output. When
Monitor.enable_monitor=true, the Observables block now emits every
epoch, filling channels without valid observables with their latest
tracking data (C/N0, Doppler, carrier phase), flagged as invalid so
that the PVT engine and other consumers keep ignoring them.
Fixes#1018
... when Acquisition_5X.coherent_integration_time_ms is greater than 1.
In this case vectors codeQ_, codeI, codeQ are constructed with
code_length size, but written with vector_length which results in
arbitrary memory overwriting and crash.
Construct these arrays with vector_length sizeto make sure that there
will be enough space for all primary code replicas and zero padding.
Signed-off-by: Vladslav P <vladisslav2011@gmail.com>
For some reason, the old script calculated "mean()" of PRN numbers
in a tracking channel. E.g., channel 1 tracked PRN 3 for few seconds,
then tracked PRN 16 for the rest. The script would add legend PRN 9
(3+16)/2 = .... Fixed that and added "PRN-wise tracking indicator" in
addition to the existing "channel-wise tracking indicator"
Signed-off-by: minhaj <minhaj.sixbyte@gmail.com>
The KF tracking dump reader now follows the parameters dumped by kf_tracking.cc
lib/gps_l1_ca_kf_read_tracking_dump.py:
- Rewrite using the same _RECORD_FORMAT / _FIELD_NAMES architecture as
dll_pll_veml_read_tracking_dump.py: one struct.unpack per record and
EOF handling, dropping the v1..v22 / bytes_shift / seek.
gps_l1_ca_kf_plot_sample.py:
- map innovation -> carr_error; drop r_noise_cov
lib/plotKalman.py, lib/plotTracking.py:
- Skip the "Estimated Noise Variance" panel when r_noise_cov is absent.
- Replace fig.canvas.set_window_title() with
fig.canvas.manager.set_window_title(). The canvas method was deprecated
in matplotlib 3.4 and is gone in current matplotlib (3.6.3 here), where
it raised AttributeError. Ref: https://github.com/raysect/source/issues/383
Signed-off-by: minhaj <minhaj.sixbyte@gmail.com>
Carles Fernandez