ip_05_11.m

电子工业出版社出版的国外电子与通信教材系列一书：现代通信系统（MATLAB版）（第二版）中的脚本文件与M文件(第二章－－九章)

% MATLAB script for Illustrative Problem 5.11.
echo on
SNRindB=0:2:10;	  		     	
for i=1:length(SNRindB),
  % simulated error rate
  smld_err_prb(i)=smldP511(SNRindB(i));
  echo off;
end;
echo on ;
% Plotting commands follow.后为自加上的
semilogy(SNRindB,smld_err_prb,'*');
snr_in_dB=0:0.5:10;
tolerance=eps;
plus_inf=20;
for i=1:length(snr_in_dB),
    snr=10^(snr_in_dB(i)/10);
    Pe_4(i)=1-quad8('bdt_int2',0,plus_inf,tolerance,[],snr,4);
end
hold on
semilogy(snr_in_dB,Pe_4);
hold off