分析了基于多相滤波结构的宽带侦察接收机中频数字信号下变频处理方法。
This paper analyzes the digital down conversion (DDC) of wideband reconnaissance receiver IF digital signal based on polyphase filtering.
用VHDL编写源代码分别实现了多相滤波结构的数字分路算法和加权叠接-相加结构的数字分路算法；
Two source codes are programmed with VHDL to realize digital demutiplexing algorithms with the structures of polyphase filters and weighted overlap-adding; 4.
本文的主要成果有：1。深入研究了数字分路算法的两种实现结构：多相滤波结构和加权叠接-相加结构。
The main contributions are as follows:1. The structures of polyphase filters and weighted overlap-adding, which are used to realize digital demutiplexing algorithms, are deeply studied.
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。
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。
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.
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