golayencode.asv

比较hamming Golay 编码在BPSK条件下的优劣

function [out]=golayencode(sig) 

generation_matrix=[1 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 1 1 0 0 0 1 0 1; 
                   0 1 0 0 0 0 0 0 0 0 0 0 1 0 1 1 1 0 0 0 1 0 1 1; 
                   0 0 1 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 1 0 1 1 1; 
                   0 0 0 1 0 0 0 0 0 0 0 0 1 1 1 0 0 0 1 0 1 1 0 1; 
                   0 0 0 0 1 0 0 0 0 0 0 0 1 1 0 0 0 1 0 1 1 0 1 1; 
                   0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 1 0 1 1 0 1 1 1; 
                   0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 1 1 0 1 1 1 1; 
                   0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 1 1 0 1 1 1 0 1; 
                   0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 1 1 0 1 1 1 0 0 1; 
                   0 0 0 0 0 0 0 0 0 1 0 0 1 0 1 1 0 1 1 1 0 0 0 1; 
                   0 0 0 0 0 0 0 0 0 0 1 0 0 1 1 0 1 1 1 0 0 0 1 1; 
                   0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 0]; 

data_char=dec2bin(sig);
data_int=uint8(data_char)-48;
mat=reshape(data_int,1,40000*8);
build_mat=[mat,0,0,0,0];
data=reshape(build_mat,26667,12);

for i=1:length()
   messages=SplitintoTwo(sig(i));
   out(2*i-1,:)=Mod2MatMul(messages(1,:),G);
   out(2*i,:)=Mod2MatMul(messages(2,:),G);
end
    
golay_code=data*generation_matrix-floor((data*generation_matrix)./2).*2;%模2加 
out=golay_code;