Research and simulate on code tracking performance of DS/BPSK navigation signal in multipath interface

The signal code tracking performance of DS/BPSK navigation receiver on multipath environment was researched in the paper. The influence of multipath signal whose delay was smaller than 1 chip to the PN code tracking error and carrier tracking error was analyzed. The hardware implementation of the signal code scheme was provided, and the mathematics mode of the signal tracking system was presented. The phase tracking and measurement performance was analyzed when the receiver signal was composite signal. Based on the analysis of tracking mathematics, some simulations of the code tracking loop performance were given, and the code tracking loop through the Simulink of Matlab was built up.