carrierloopfilter.m

GPS的CA码捕获跟踪源代码

function [FLLoutput]=CarrierLoopFilter(w,a,FLLinput,FLLinput_old,FLLoutput_old)
T = 1*(10^(-3));
%w = 20;   %自然圆频率
%a= 0.707; %阻尼系数
%CodeDamp = 1;

FLLoutput= FLLoutput_old+(T*(w^2)+a*w)*FLLinput-(a*w)*FLLinput_old;

%offside = offside_old+T*CodeErr; % 积分环节（输出相位）