delsig2.m

来自「非线性控制 Matlab编译」· M 代码 · 共 28 行

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 !')
end

y = 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