www.gusucode.com > signal 案例源码程序 matlab代码 > signal/PSDViaPeriodogramExample.m
%% PSD via Periodogram % Generate a cosine of frequency 200 Hz sampled at 1 kHz for 300 ms. Add % Gaussian white noise. View its power spectral density estimate generated % with the |periodogram| algorithm. % Copyright 2015 The MathWorks, Inc. %% Fs = 1000; t = 0:1/Fs:0.3; x = cos(2*pi*t*200) + randn(size(t)); Hs = spectrum.periodogram; psd(Hs,x,'Fs',Fs) %% % Refer to the reference pages for each estimation method for more % examples.