property1.m

用dsp解压mp3程序的算法

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% property1.m - Program for showing Linearity
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x1 = [1 2 3 4 4 3 2 1]; a = 2;
x2 = [-2 -4  -6 -8 8 6 4 2]; b = 1.5;

X1 = fft(x1,8);
X2 = fft(x2,8);

RHS = a.*X1 + b.*X2

LHS = fft(((a.*x1)+(b.*x2)),8)