?? delsig2.m
字號:
function y=delsig2(x,D)%DELSIG2 Create delayed signal matrix from signal matrix and delay vector.%% DELSIG2(X,D)% X - SxT matrix with S-element column vectors for T timesteps.% D = [d1 d2 ... dn] - vector of delays.% Returns signal X delayed by d1, ..., and dn timesteps% and shorter than X by max(D). % By Valery Petrov, CNLD 9-11-96%% Copyright (c) 1996-1998 The University of Texas at Austin[xr,xc] = size(x);d2=length(D);if(xc<(max(D)-min(D)+1)) error('Not enough rows in x, for selected delay matrix !')endy = zeros(xr*(d2),xc-max(D));for i=1:d2 y((1:xr)+xr*(i-1),:) = x(:,(max(D)-D(i)+1):(xc-D(i)));end
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