多波形雷达回波中频模拟器设计  

Design of Multi-wave Radar Reflected Wave IF-Simulator

作　　者：白森[1] 史玉琴[1] 王鹏[1] 

机构地区：[1]中国空空导弹研究院航空制导武器航空科技重点实验室,河南洛阳471009

出　　处：《现代电子技术》2011年第13期8-10,14,共4页Modern Electronics Technique

摘　　要：基于自主产生式的工作原理,采用DSP配合FPGA完成数据处理、DDS信号产生、数字正交上变频等技术,实现了双目标中频雷达回波信号模拟,支持简单脉冲、线性调频,以及步进频等多种波形。采用改进的存储转发方法实现脉冲延迟,并基于数字信号处理技术产生带限高斯白噪声,可灵活地调节带宽、功率等参数。整个系统已经成功地在ADI公司的ADSP-21060和Xilinx公司的XC2V3000型FPGA上得到了实现,验证了设计的正确性和有效性。Basing on active-generating working principle, combining DSP with FPGA to complete signal processing, DDS generating and DDC, a radar intermediate frequency simulator is presented which supports simple pulse, LFM and stepped frequency for dual target reflected radar wave. The modified saving ＆ distributing architecture is used to accomplish pulse delay, and tile band-limited AWGN is generated through digital signal processing, which can adjust band width and power. The whole system has been successfully implemented in Virtex2 XC2V3000 （Xilinx Corp. ） and ADSP-21060 （Analog Devices Corp. ） platform. The design correctness and validity are also proved.

关 键 词：雷达回波模拟 多波形 存储转发 加性高斯白噪声 

分 类 号：TN95-34[电子电信—信号与信息处理]