一种数字化中频接收机的研究与实现

Research and implementation of digital intermediate frequency receiver

概述了软件无线电的发展和应用,为满足雷达中频接收机的数字化要求,介绍了C频段微波统一测控系统中应用软件无线电思想设计数字化中频接收机的方案,对其基本原理和实现的关键技术做了分析,最后给出了应用FPGA和DSP等器件实现该接收机的具体方法。整个系统集成度高,可靠性好,使用灵活,已在多个某型C频段统一测控系统中得到了应用。

The development and application of software radio was described in this paper. In order to satisfy the numeralization need of radar intermediate frequency receiver, the design scheme of digital IF receiver in which the software radio idea was applied in C-band microwave unified TF＆C system was introduced, the basic principles and key techniques were analyzed, and the specific implementation method applying FPGA and DSP was put forward. The whole system is highly integrated, reliable and flexible, it has already applied in a C-band unified TY＆C system.