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subplot(1,1,1) n = -5:5; x = (-0.9).^n; k = -200:200; w = (pi/100)*k; X = x * (exp(-j*pi/100)) .^ (n'*k); magX = abs(X); angX =angle(X); subplot(2,1,1); plot(w/pi,magX);grid axis([-2,2,0,15]) x

n = -5:10; x = rand(1,length(n)) + j*rand(1,length(n)); k = -100:100; w = (pi/100)*k; % frequency between -pi and +pi X = x * (exp(-j*pi/100)).^(n'*k); % DTFT of x % conjugation property

% Chapter 05: Example 05.06: Simple DFT Example % x = [1,1,1,1]; subplot(1,1,1); % % a) DTFT w = [0:1:500]*2*pi/500; [H] = freqz(x,1,w); magH = abs(H); phaH = angle(H); phaH(126)=-47.5841*pi/1

% Chapter 05: Example 05.07: Zero-padding Example % subplot(1,1,1); x = [1,1,1,1]; % % a) DTFT w = [0:1:500]*2*pi/500; [H] = freqz(x,1,w); magH = abs(H); phaH = angle(H); phaH(126)=-47.5841*pi

function T=phispan(x,phitype,dilation,uo,a,bord1,bord2,Family,par); % USAGE T=phispan(x,phitype,dilation,uo,a,bord1,bord2) % % This function returns a matrix Tij that contains elements % \phi_j(x_i

function T=phispan(x,phitype,dilation,uo,a,bord1,bord2,Family,par); % USAGE T=phispan(x,phitype,dilation,uo,a,bord1,bord2) % % This function returns a matrix Tij that contains elements % \phi_

%====================================================================== % Copyright (C) 2005 % All rights reserved. % File name: Gabor.m % Notes: 应用R

%====================================================================== % Copyright (C) 2005 % All rights reserved. % File name: Mexican.m % Notes: 应

%====================================================================== % Copyright (C) 2005 % All rights reserved. % File name: myself.m % Notes: 应用

#include #define pi 3.1415 double gaussian(double x) { double resu; resu=-0.5*x*x; resu=exp(resu); resu=resu/sq