examp29.m

ADSP TOOLBOX: Version 2.0 and gui m-files

clc,echo on 
%EXAMPLE 29 
x=[1 2 -1 0 2]; h=2:-1:-3;     % Signals x and h 
Nx=length(x);Nh=length(h);     % Signal lengths 
Ny=Nx+Nh-1;                    % Convolution length 
xz=zeros(1,Ny);hz=xz;          % Initialize zero-padded signals 
xz(1:Nx)=x;hz(1:Nh)=h;         % Zero-padded x and h 
N=length(xz);                  % Length of xz and hz 
y=convp(xz,hz)                 % convolution using convp
yr=conv(x,h)                   % regular convolution
err=y-yr                       % Display error (should be zero) 
echo off %end of example