如何用MATLAB計算波浪頻率譜

熱心網(wǎng)友：看一個例子： Fs = 1000; % Sampling frequency T = 1/Fs; % Sample time L = 1000; % Length of signal t = (0:L-1)*T; % Time vector % Sum of a 50 Hz sinusoid and a 120 Hz sinusoid x = 0.7*sin(2*pi*50*t) + sin(2*pi*120*t); y = x + 2*...

熱心網(wǎng)友：不明白啊 = =！