comb.m

OFDM系统仿真

% Program 2-4
% comb.m
%
% Generate additive white gaussian noise
%
% Programmed by H. Harada
%
function [iout,qout] =comb(idata,qdata,attn)
%*********************** variables ********************
% idata : input Ich data
% qdata : input Qch data
% iout output Ich data
% qout output Qch data
% attn : attenuation level caused by Eb/No or C/N
%******************************************************
iout = randn(1,length(idata)).*attn;
qout = randn(1,length(qdata)).*attn;
iout = iout+idata(1:length(idata));
qout = qout+qdata(1:length(qdata));