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  • 大小: 7KB
    文件類型: .m
    金幣: 1
    下載: 0 次
    發布日期: 2021-01-01
  • 語言: Matlab
  • 標簽: MMSE、LS??

資源簡介

程序是比較MMSE和LS的SER,已經運行過了,可以出圖

資源截圖

代碼片段和文件信息

clc;
clear?all;
%生成訓練序列
%用BPSK調制
X=zeros(6464);
d=rand(641);
??????for?i=1:64
???????if(d(i)>=0.5)
???????????d(i)=+1;
???????else
???????????d(i)=-1;
???????end
????end
?for?i=1:64
?????X(ii)=d(i);
?end
%計算出信道向量G
?%信道特性
??tau=[0.5?3.5];
for?k=1:64
??????s=0;
??????for?m=1:2
?????????s=s+(exp(-j*pi*(1/64)*(k+63*tau(m)))?*?((?sin(pi*tau(m))?/?sin(pi*(1/64)*(tau(m)-k)))));
??????end
g(k)=s/sqrt(64);
end
G=g‘;%信道向量
H=fft(G);%?頻域
XFG=X*H;
n1=ones(641);
n1=n1*0.000000000000000001i;%加入復高斯白噪聲
noise=awgn(n18);%設置SNR為8db
variance=var(noise);
N=fft(noise);
Y=XFG+N;

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%求出G的自相關矩陣Rgg
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
gg=zeros(6464);
for?i=1:64
????gg(

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