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The implementation of the Sampling method is accomplished by the polyphase structure of the filter. This implementation is particularly suitable for linear phase FIR filter.
该采样方法使用滤波器的多相结构实现，这种实现方法特别适合于线性相移fir滤波器。
Under certain conditions, combining the polyphase filtering structure of decimation filter, put forward an optimum design method of quadrature demodulation receiver, which owns decimation structure.
结合抽取滤波器的多项滤波结构，在一定条件下，推导出了一种含抽取正交解调接收机最优结构设计方法。
The polycrystalline structure of mullite-cordierite polyphase material and its contents were determined by XRD and SEM, respectively.
采用XRD和SEM法确定莫来石-堇青石复相材料的晶相结构及其含量。
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