logmap.m

来自「该文件夹为空时块码－卷积码级联系统的仿真程序」· M 代码 · 共 7 行

function result=logmap(logp)
% Log-Map and recursive correction method to compute log(sum(exp(logp)))
num=length(logp);
result=logp(1);
for loop=2:num
    result = max(logp(loop),result) + log(1+exp(-abs(logp(loop)-result)));
end