The implementation of the Sampling method is accomplished by the polyphasestructure 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。
2
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。
3
The polycrystalline structure of mullite-cordierite polyphase material and its contents were determined by XRD and SEM, respectively.