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原创 如何画出频谱图 matlab

如何画出频谱图 matlabmatlab 代码绘制出的图片 matlab 代码 fs = 100; % sample frequency (Hz) t = 0:1/fs:10-1/fs; % 10 second span time vector x = (1.3)*sin(2*pi*15*t) ... % 15 Hz component + (1.7)*sin(2*pi*40*(t-2));