autotrunc.m

来自「老外写的小波变换的工具箱」· M 代码 · 共 9 行

function s = AutoTrunc(y,sig)
% AutoTrunc -- Perform Truncation
%  Usage
%    s = AutoTrunc(y,sig)
%
v = fft(y) ./ sqrt(length(y));
n = length(y);
hv = v(1:(n/2));
sv = steintrunc(hv,sig);
vv = [sv 0 conj(sv((n/2):-1:2))];
s = sqrt(length(y)) .* real(ifft(vv));
    
    
 
 
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