mirror of
https://github.com/gnss-sdr/gnss-sdr
synced 2024-11-15 06:14:58 +00:00
113 lines
3.9 KiB
Python
113 lines
3.9 KiB
Python
"""
|
|
read_hybrid_observables_dump.py
|
|
|
|
This function plots the tracking results for the given channel list.
|
|
|
|
Irene Pérez Riega, 2023. iperrie@inta.es
|
|
|
|
read_hybrid_observables_dump(channels, filename)
|
|
|
|
Args:
|
|
channels - list of channels to be processed
|
|
filename - path to the observables file
|
|
|
|
-----------------------------------------------------------------------------
|
|
|
|
GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
|
|
This file is part of GNSS-SDR.
|
|
|
|
Copyright (C) 2022 (see AUTHORS file for a list of contributors)
|
|
SPDX-License-Identifier: GPL-3.0-or-later
|
|
|
|
-----------------------------------------------------------------------------
|
|
"""
|
|
|
|
import struct
|
|
|
|
def read_hybrid_observables_dump(channels, filename):
|
|
|
|
double_size_bytes = 8
|
|
bytes_shift = 0
|
|
|
|
RX_time = [[] for _ in range(channels+1)]
|
|
d_TOW_at_current_symbol = [[] for _ in range(channels+1)]
|
|
Carrier_Doppler_hz = [[] for _ in range(channels+1)]
|
|
Carrier_phase_hz = [[] for _ in range(channels+1)]
|
|
Pseudorange_m = [[] for _ in range(channels+1)]
|
|
PRN = [[] for _ in range(channels+1)]
|
|
valid = [[] for _ in range(channels+1)]
|
|
|
|
f = open(filename, 'rb')
|
|
if f is None:
|
|
return None
|
|
else:
|
|
while True:
|
|
try:
|
|
# There is an empty channel at the end (Channel-6)
|
|
for N in range(0, channels+1):
|
|
f.seek(bytes_shift, 0)
|
|
|
|
RX_time[N].append(struct.unpack(
|
|
'd',f.read(double_size_bytes))[0])
|
|
bytes_shift += double_size_bytes
|
|
f.seek(bytes_shift, 0)
|
|
|
|
d_TOW_at_current_symbol[N].append(struct.unpack(
|
|
'd', f.read(double_size_bytes))[0])
|
|
bytes_shift += double_size_bytes
|
|
f.seek(bytes_shift, 0)
|
|
|
|
Carrier_Doppler_hz[N].append(struct.unpack(
|
|
'd', f.read(double_size_bytes))[0])
|
|
bytes_shift += double_size_bytes
|
|
f.seek(bytes_shift, 0)
|
|
|
|
Carrier_phase_hz[N].append(struct.unpack(
|
|
'd', f.read(double_size_bytes))[0])
|
|
bytes_shift += double_size_bytes
|
|
f.seek(bytes_shift, 0)
|
|
|
|
Pseudorange_m[N].append(struct.unpack(
|
|
'd', f.read(double_size_bytes))[0])
|
|
bytes_shift += double_size_bytes
|
|
f.seek(bytes_shift, 0)
|
|
|
|
PRN[N].append(struct.unpack(
|
|
'd', f.read(double_size_bytes))[0])
|
|
bytes_shift += double_size_bytes
|
|
f.seek(bytes_shift, 0)
|
|
|
|
valid[N].append(struct.unpack(
|
|
'd', f.read(double_size_bytes))[0])
|
|
bytes_shift += double_size_bytes
|
|
f.seek(bytes_shift, 0)
|
|
|
|
except:
|
|
break
|
|
|
|
# Delete last Channel:
|
|
RX_time = [row for i, row in enumerate(RX_time) if i != 5]
|
|
d_TOW_at_current_symbol = [row for i, row in enumerate(
|
|
d_TOW_at_current_symbol)if i != 5]
|
|
Carrier_Doppler_hz = [row for i, row in enumerate(
|
|
Carrier_Doppler_hz) if i != 5]
|
|
Carrier_phase_hz = [row for i, row in enumerate(
|
|
Carrier_phase_hz) if i != 5]
|
|
Pseudorange_m = [row for i, row in enumerate(Pseudorange_m) if i != 5]
|
|
PRN = [row for i, row in enumerate(PRN) if i != 5]
|
|
valid = [row for i, row in enumerate(valid) if i != 5]
|
|
|
|
observables = {
|
|
'RX_time': RX_time,
|
|
'd_TOW_at_current_symbol': d_TOW_at_current_symbol,
|
|
'Carrier_Doppler_hz': Carrier_Doppler_hz,
|
|
'Carrier_phase_hz': Carrier_phase_hz,
|
|
'Pseudorange_m': Pseudorange_m,
|
|
'PRN': PRN,
|
|
'valid':valid
|
|
}
|
|
|
|
f.close()
|
|
|
|
return observables
|