摘要
本文介绍了一种实时雷达中频回波模拟器的设计方法。该模拟器以空间目标为主要研究对象,以我国新一代空间目标探测雷达为应用背景。通过分析目标去斜率后的中频回波信号形式,利用DSP(Digital Signal Processor)和AD9857,提出了一种基于DDS(Direct Digital Synthesize)技术的实时模拟方案。通过和主机配合,该模拟器能够把雷达录取的真实数据回放,重现雷达跟踪目标的现场信号环境,具有重要的实用价值。
In this article a design method of radar IF echo simulator is introduced. This simulator＇ s research object is space target, and its application background is our nation＇ s new generation space targets exploration radar. After analyzing the signal formula of radar target＇ s IF echo, using DSP and AD9857, a DDS based real-time simulation plan is brought out. With the cooperation of PC, this simulator has the ability to play back real radar echo data, recur the field signal environment when radar tracking targets. This is valuable in application.
出处
《信号处理》
CSCD
北大核心
2006年第6期869-872,共4页
Journal of Signal Processing
