TABLE 1

Simulation Parameters

ParametersValues
Signal typeBPSK(1)
Spreading code typePRN 1 of GPS L1 C/A
Sampling rate20.46 MHz
Intermediate frequency10 MHz
S-LCI interval Tt1.024 s
Slow-time interval TS0.25 ms
Input C/N015 dB-Hz to 45 dB-Hz
Input Doppler rate0–2 g
Input initial frequency error Δf5+ εf Hz
Input initial carrier phase error Δϕc0 cycle
Input code phase error Δτb,c0 chip
FRFT order search step Δpo0.00055
FRFT order search rangepε – 2Δpo to pε+ 2Δpo with pε= p + Δp
Monte Carlo experiments of each case100 trials
Iteration number of estimates each trial20 times
Small-large rotation angle spacingπΔ po radians
Early-late code phase spacing0.5 chips
Low-high frequency spacingEmbedded Image
  • Notes:

  • 1 For Embedded Image where the probability density function (PDF) of εf satisfies geometric distribution.

  • 2 For Embedded Image where εp satisfies geometric distribution.

  • 3 p corresponds to the truth value of the input Doppler rate.