ex031000.m

数字信号处理的程序集合之二

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
y = conj(x);                         % signal conjugation
Y = y * (exp(-j*pi/100)).^(n'*k);    % DTFT of y
% verification
Y_check = conj(fliplr(X));           % conj(X(-w))
error = max(abs(Y-Y_check))          % Difference