将采样的方法应用于数字接收机中，可以在一定条件下降低采样速率，同时增加接收机的瞬时带宽。
Subnyquist sampling applied in digital receivers can reduce sampling rate of ADC and increase input band width of digital receivers under given conditions.
介绍了用滤波器组重构多阶采样信号的原理，并且利用多阶采样特殊的重构原理以及在降低采样率上的优势，介绍了多阶采样在频率选择上的应用。
By using the special reconstruction principle and the superiority in decreasing sampling frequency, the application of periodically nonuniform sampling in frequency selection is also presented.
但采样频率过高会增加处理的数据量，从而降低泄漏检测的速度。
But the high frequency of sampling will result in the increase in data collecting, thus reduce the velocity of leaking detection.
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