?? tfdshift.m
字號:
function out = tfdshift(in)% tfdshift -- Shift the spectrum of a TFD by pi radians.%% Usage% out = tfdshift(in)%% Inputs% in time-frequency distribution%% Outputs% out shifted time-frequency distribution% Copyright (C) -- see DiscreteTFDs/Copyrighterror(nargchk(1, 1, nargin));N = size(in, 1);M = ceil(N/2);out = [in(M+1:N,:) ; in(1:M,:)];
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