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通信教程/信号处理/调频 (FM)
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摘自维基教科书，向世界开放的开放教科书
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通信教程
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信号处理
如果让载波的频率成为时间的函数，我们可以获得一个这样的广义函数：sFM = Acos(2π[fc + ks(t)]t + φ)
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书籍：通信教程
华夏公益教科书
