mirror of https://github.com/gnss-sdr/gnss-sdr
46 lines
1.4 KiB
Matlab
46 lines
1.4 KiB
Matlab
% Javier Arribas 2011
|
|
function [preamble_delay_ms,prn_delay_ms] = gps_l1_ca_dll_pll_read_observables_dump (channels, filename, count)
|
|
|
|
%% usage: read_tracking_dat (filename, [count])
|
|
%%
|
|
%% open GNSS-SDR tracking binary log file .dat and return the contents
|
|
%%
|
|
|
|
m = nargchk (1,2,nargin);
|
|
num_double_vars=2;
|
|
double_size_bytes=8;
|
|
skip_bytes_each_read=double_size_bytes*num_double_vars*channels;
|
|
bytes_shift=0;
|
|
if (m)
|
|
usage (m);
|
|
end
|
|
|
|
if (nargin < 3)
|
|
count = Inf;
|
|
end
|
|
%loops_counter = fread (f, count, 'uint32',4*12);
|
|
f = fopen (filename, 'rb');
|
|
if (f < 0)
|
|
else
|
|
for N=1:1:channels
|
|
preamble_delay_ms(N,:) = fread (f, count, 'float64',skip_bytes_each_read-double_size_bytes);
|
|
bytes_shift=bytes_shift+double_size_bytes;
|
|
fseek(f,bytes_shift,'bof'); % move to next interleaved
|
|
prn_delay_ms(N,:) = fread (f, count, 'float64',skip_bytes_each_read-double_size_bytes);
|
|
bytes_shift=bytes_shift+double_size_bytes;
|
|
fseek(f,bytes_shift,'bof'); % move to next interleaved
|
|
end
|
|
|
|
fclose (f);
|
|
|
|
%%%%%%%% output vars %%%%%%%%
|
|
% for (unsigned int i=0; i<d_nchannels ; i++)
|
|
% {
|
|
% tmp_double=in[i][0].preamble_delay_ms;
|
|
% d_dump_file.write((char*)&tmp_double, sizeof(double));
|
|
% tmp_double=in[i][0].prn_delay_ms;
|
|
% d_dump_file.write((char*)&tmp_double, sizeof(double));
|
|
% }
|
|
end
|
|
|