Hello,
I am developing a GPS generator GRC. I use this block diagram:
-
C / A code. 1023 Samples, Sample rate: 5.1151Msps, interpolation
Repeat 5 → 977.5e-9 s each chip. (1,023 MHz) -
Navigation data. Sample rate: 5.1151Msps, Repeat interpolation:
102302 → 0.02 s each chip. (50Hz)
But I have a question. The L1 signal is, so I do not use the P-Code.
What should I use in the complex block? Any random source, a null
constant source?
Is it right to my block diagram?
- My C / A code spectrum:
http://i1281.photobucket.com/albums/a515/Carlos_Alberto_Ruiz_Naranjo/fft_zps6d97a95d.png
** My GPS signal autocorrelation:
*** I DO NOT want to raise the frequency at 1575.42 MHz
Thank you! 