localcarrier.m

matlab仿真的GPS信号捕获程序

function [ cos_localcarr sin_localcarr ] = LocalCarrier(fd_index, freq_bin, fc)
%本地载波
sam_rate=5000000;
sam_intervel=1.0/sam_rate;
fr=fc+fd_index*freq_bin;
k=linspace(0,4999,5000);
cos_localcarr=10*cos(2*pi*fr*sam_intervel*k);
sin_localcarr=10*sin(2*pi*fr*sam_intervel*k);