多通道雷达数字接收机技术  

Multi-Channel Radar Digital Receiver Technology

作　　者：杨媛媛 

机构地区：[1]中国航天科工集团061基地302设计研究所,贵阳500009

出　　处：《电子信息对抗技术》2014年第2期65-69,共5页Electronic Information Warfare Technology

摘　　要：针对多通道雷达数字接收机在现代战争中的应用需求,以四通道为例,提出了一种基于FPGA的数字接收机方案,采用多类滤波器级联技术,对系统进行硬件和软件设计,通过控制积分梳状（CIC）滤波器和半带（HB）滤波器,实现覆盖范围为2～8192倍的抽取滤波,最后对系统进行硬件调试及现场测试,并对测试结果进行分析,验证了方案的正确性和可行性.Aiming at the requirement of multi-channel radar digital receiver in the current war, a scheme of four-channel digital receiver based on FPGA is put forward as an example with the technology of cascading multi-kind filters, and a hardware and software system designs are pro- posed. The decimation with factor range of 2 - 8192 is realized by controlling the integrator- comb （CIC） filter and half-band （HB） filters. Finally, the hardware and system are tested, and the result of test is analyzed, which provides the validity and feasibility of the scheme.

关 键 词：多通道雷达数字接收机 数字下变频 抽取 滤波 

分 类 号：TN957.5[电子电信—信号与信息处理]