一种宽带数字信道化接收机

doi:10.3969/j.issn.1001-2400.2010.03.018

Abstract

Abstract:

The digital receiver should possess the ability to process a large number of data in real-time for the wideband signal. A new kind of efficient digital channelized receiver is proposed in this paper which is based on polyphase filters and short-time FFT technology(polyphase fast Fourier transform). It can detect objects and measure parameters for the wideband signal in real-time. A digital receiver system with a 640MHz instantaneous bandwidth is built based on the structure proposed using FPGA and DSP devices. It has high accuracy of time-frequency parameter measurement and low data output ratio, which shows the structure is feasible.

Key words: polyphase fast Fourier transform, channelized receiver, parameter estimation

WANG Hong-wei;ZHAO Guo-qing;WANG Yu-jun;BAO Dan. Wideband digital channelized receiver design[J].J4, 2010, 37(3): 487-491+553.

References

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Wideband digital channelized receiver design

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