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发帖数: 23 | 1 You are right. Since lots of the textbooks use
the low pass signal to explain the sampling theorem.
That is why 抽样定理说的是至少是该信号最高频率的两倍.
However, it is not true for band pass or high pass signals.
Acctually, we should use sampling rate >= 2* bandwidth to
define the sampling theorem. |
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