剔除异部雷达信号方法的研究与应用  

Study and application of eliminating another radar signal

作　　者：曹来田 张文旭[1] 陈涛[1] 

机构地区：[1]哈尔滨工程大学信息与通信工程学院,黑龙江哈尔滨150001

出　　处：《应用科技》2006年第7期44-47,共4页Applied Science and Technology

摘　　要：密集信号环境下,被动雷达导引头信号处理系统中,由信号跟踪器给出的预测宽波门中难免会有异部雷达信号.文中提出利用相位差和载频等参数,剔除宽波门内可能存在的异部信号的方法,完善了对目标信号的选择与跟踪;以高速DSP+FPGA为计算核心构成硬件平台,实时地给出跟踪窄波门,提高了系统跟踪精度;采用AD8302幅相测量芯片,极大地简化了系统计算量.在实际应用中取得了很好的效果.In high pulse-density environment,it＇ s hard to avoid another radar signals from the forecasting gate given by a signal tracer in passive radar seeker signal processing system. In this article, a new method using the phase shifts and carrier frequency is brought forward to complete the processing of signal sorting and tracing by eliminating another radar signal included in forecasting gates. With high speed DSP ＋ FPGA as hardware platform, real-time tracing narrow gates are given and the tracing precision of the system is improved. The adoption of AD8302 reduces the system＇ s computational effort, indicating that good effect has been achieved in practial applications.

关 键 词：被动雷达导引头 跟踪窄波门 信号跟踪 

分 类 号：TN911.7[电子电信—通信与信息系统]