Scan I/Q data for GPS space vehicle signals
Requires 3ms of 16bit I/Q data, stored in this format: LSB I , MSB I, LSB Q, MSB Q
$ ./gps_iq_scan ../gps2/samples/airspy-8ms-gain-10.bin
Building Gold codes
Stretching Gold codes
Reading samples
File opened
Samples read
Processing
SVID, Frequency, offset, Strength
SV01, 1998500, 5229, 30.6
SV02, 1987500, 2160, 29.2
SV03, 1989500, 4722, 28.8
SV04, 2002500, 8181, 30.7
SV05, 2002500, 6969, 25.8
SV06, 2012500, 1815, 33.7
SV07, 2006500, 1380, 32.7
SV08, 1997500, 3216, 893.2
SV09, 1997500, 6558, 33.6
SV10, 1988500, 6408, 30.3
SV11, 2012500, 6624, 26.1
SV12, 2006500, 4269, 29.1
SV13, 1997500, 8997, 33.3
SV14, 1999500, 6120, 25.5
SV15, 2009000, 4926, 30.0
SV16, 1999500, 8670, 42.1
SV17, 1990500, 1518, 30.2
SV18, 1993500, 4065, 28.4
SV19, 1988500, 5688, 27.8
SV20, 1991500, 6078, 32.4
SV21, 2005500, 6675, 28.7
SV22, 1994500, 2178, 25.0
SV23, 1994500, 459, 32.7
SV24, 2007500, 8037, 27.4
SV25, 2008500, 2121, 25.5
SV26, 1999500, 3549, 25.5
SV27, 2004000, 6111, 28.3
SV28, 2008500, 7593, 25.5
SV29, 2000500, 2727, 24.7
SV30, 1996500, 4350, 33.5