...于FPGA的数字上变频器(Digital Up Converter, DUC)和数字下变频(Digital Down Converter, DDC)和多速率滤波器(Multirate Filter)的设计和实现,最后通过对各功能模块的FPGA仿真,验证了设计的正确性和性能。
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创建多速率滤波器 Create a Multirate Filter
离散多速率滤波器组 discrete multirate filter banks
FIR多速率滤波器组 FIR multirate filter banks
作为一类特殊的多速率滤波器组，调制滤波器组由于设计简单而备受关注。
As a special kind of multirate filter Banks, modulated filter Banks have been paid more and more attention because of their simple designs.
该方法通过将一个空域子带阵列和时域子带多速率滤波器组合并来同时获得空域和时域两种子带系统的优点。
The proposed method incorporates a spatial subband array with temporal subband multirate filters and obtains the advantages of spatial and temporal subband systems.
提出了一种能够抑制多径干扰的基带波形设计方法，该方法是通过保持传输信息速率不变，在成形滤波器第二个零点叠加信号来实现的。
A waveform design method that can restrain the multipath effect was proposed. It was achieved by placing signal on the second zero point of waveform filter and keeping the information rate.
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