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2013-05-23 12:21
求翻译：The Fourier transform of a sampled-data signal is generally referred to as a discrete Fourier transform (DFT) . There are two reasons for this: Firstly, the signal itself is discrete, in the sense of being defined only at discrete instants in time (the sampling instants): and secondly, the common practice of using a di是什么意思？ 待解决
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The Fourier transform of a sampled-data signal is generally referred to as a discrete Fourier transform (DFT) . There are two reasons for this: Firstly, the signal itself is discrete, in the sense of being defined only at discrete instants in time (the sampling instants): and secondly, the common practice of using a di
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