In this paper, we use a common deducing method to acquire an efficient architecture based DFT polyphase filter banks to realize wideband digital channelized receiver.

In this paper, by using DFT filter bank and ZFFT, we present an algorithm of spectrum analysis for the wide band signal .

Design of oversampled NPR DFT modulated filter bank;

This paper presents a new method for the design of oversampled nearly perfect reconstruction (NPR) DFT modulated filter banks.

A detection system based on polyphase filter bank ZFFT is put forward in this paper.

This paper investigates the principle of the digital quadrature transformation based on polyphase filtering, and proves that the interpolation delay filters can be replaced with branch filters from a polyphase filter bank according to the theory of.

In the design, the polyphase filter bank is adopted as the Digital Down Converter(DDC),and each path of data channels after DDC is overlapped and windowed.

This paper gives the principles of channelization based on polyphase filter banks,proposes a mathematics model of the receiver based on two factors of and without"blind zone",and derives the DPT structure of the model,which decreases hardware complication.