softbrmet.m

用于通讯仿真的viterbi算法完整实现方案.用途广泛.

function metric=brmet(output,data_test);

[mm,nn]=size(data_test);

outsum=0;

for i=1:mm
    insum=0;
    for j=1:nn
        %%%insum1=abs(output(j)-data_test(i,j)).^2;
        if data_test(i,j)==1
           insum1=  (-1)*output(j);
       else 
           insum1=output(j);
       end
           insum=insum+insum1;
    end
    outsum(i)=insum;
end

metric=outsum;