Parameters | Values |
---|---|
Signal type | BPSK(1) |
Spreading code type | PRN 1 of GPS L1 C/A |
Sampling rate | 20.46 MHz |
Intermediate frequency | 10 MHz |
S-LCI interval Tt | 1.024 s |
Slow-time interval TS | 0.25 ms |
Input C/N0 | 15 dB-Hz to 45 dB-Hz |
Input Doppler rate | 0–2 g |
Input initial frequency error Δf | 5+ εf Hz |
Input initial carrier phase error Δϕc | 0 cycle |
Input code phase error Δτb,c | 0 chip |
FRFT order search step Δpo | 0.00055 |
FRFT order search range | pε – 2Δpo to pε+ 2Δpo with pε= p + Δp |
Monte Carlo experiments of each case | 100 trials |
Iteration number of estimates each trial | 20 times |
Small-large rotation angle spacing | πΔ po radians |
Early-late code phase spacing | 0.5 chips |
Low-high frequency spacing |
Notes:
1 For where the probability density function (PDF) of εf satisfies geometric distribution.
2 For where εp satisfies geometric distribution.
3 p corresponds to the truth value of the input Doppler rate.