rayleighfader.m

这是一个wcdma下行功率控制仿真的源代码

function [WaveformOut] = RayleighFader(starttime,WaveformIn,AvgFadePower,Path_num)
sampletime = 1/(3.84 * 10^6);
totaltime = 2560 * sampletime;
%Delay = (-1-sqrt(-1))/abs(-1-sqrt(-1));
Fade = RayleighGen(starttime,10,totaltime,sampletime);
%if Path_num == 1
%   WaveformIn = [WaveformIn Delay Delay Delay];
%   Fade = [Fade Delay Delay Delay];
%elseif Path_num == 2
%   WaveformIn = [Delay WaveformIn Delay Delay];
%   Fade = [Delay Fade Delay Delay];
%elseif Path_num == 3
%   WaveformIn = [Delay Delay WaveformIn Delay];
%   Fade = [Delay Delay Fade Delay];
%elseif Path_num == 4
%   WaveformIn = [Delay Delay Delay WaveformIn];
%   Fade = [Delay Delay Delay Fade];
%end
rayEnvelope = abs(Fade);
rms = sqrt(mean(rayEnvelope.^2));
Fade = Fade./rms;
Fade = sqrt(AvgFadePower)*Fade;
%mean(abs(Fade).^2)
%mean(abs(WaveformIn).^2)
WaveformOut = WaveformIn.*Fade;
%mean(abs(WaveformOut).^2)