www.gusucode.com > 压缩感知重构算法 压缩感知源码程序 > fdrthresh.m

    function thresh = fdrthresh(z,q)

az = abs(z);
[sz,iz] = sort(az);
pobs = erfc(sz./sqrt(2));
N = 1:length(z);
pnull =  N' ./length(z);
good = (reverse(pobs) <= (q .* pnull));
if any(good),
    izmax  = iz(1 + length(sz) - max(N(good)));
    thresh = az(izmax);
else
    thresh = max(az) + .01;
end
    
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% Copyright (c) 2006. Iddo Drori
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% Part of SparseLab Version:100
% Created Tuesday March 28, 2006
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