MATLAB数字基带系统的抗噪声性能分析源码.zip

function [p]=smldPe(snr_in_dB) E=1; SNR=exp(snr_in_dB*log(10)/10); sgma=E/sqrt(2*SNR); N=10000; for i=1:N temp=rand; if(temp<0.5) dsource(i)=0; else dsource(i)=1; end end numoferr=0; for i=1:N if(dsource(i)==0) r0=E+gngauss(sgma); r1=gngauss(sgma); else r0=gngauss(sgma); r1=E+gngauss(sgma); end if(r0>r1) decis=0; else decis=1; end if(decis~=dsource(i)) numoferr=numoferr+1; end end p=numoferr/N; end