PROJECT TITLE :

C/A code cross-correlation at a high doppler offset

ABSTRACT:

C/A code cross-correlation affects signal acquisition and tracking in world positioning system (GPS) receivers. This paper investigates the cross-correlation-induced tracking errors, which will be substantial when the two Doppler frequencies are apart by an integer variety of kilohertz. Carrier smoothing is a good mitigation against the pseudorange errors, although the residual could still be significant if a short smoothing time constant is employed.