原帖由 Simoneleee 于 2010-3-28 05:46 发表
奥,以上我把乘积与卷积弄混了。修改如下:
输出: f(t) = g(t)cosw0t
即 f(t) = g(t) * h(t)
因而:
F(w) = (1/2pi) x G(w) * [pi x o(w+w0) + pi x o(w-w0)] = 0.5 [G(w+w0)+G(w-w0)];
F(w) = ...
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