一种多目标情况下的单脉冲测角方法  

A monopulse angle measurement method for multiple targets

作　　者：赵永波[1] 谷泓[2] 张守宏[1] 

机构地区：[1]西安电子科技大学雷达信号处理国家重点实验室,陕西西安710071 [2]西安机电信息研究所,陕西西安710065

出　　处：《西安电子科技大学学报》2005年第3期383-386,共4页Journal of Xidian University

基　　金："十五"预研基金资助项目(413070403)

摘　　要：为了提高多目标情况下雷达的角度测量性能,在常规单脉冲测角方法的基础上,提出一种改进的测角方法.该方法根据事先估计得到的各个目标的多普勒频率来设计特殊的多普勒滤波器,然后再对各多普勒滤波器的输出进行角度测量.由于特殊设计的多普勒滤波器能消除目标之间的相互影响,实现目标之间的完全分离,与常规单脉冲测角方法相比,该方法具有较好的测角性能.For the purpose of improving the angle measurement performance in the case of multiple targets, a modified monopulse method is proposed. Instead of using the discrete Fourier transform (DFT) filters, the proposed method uses some special Doppler filters to process the received data according to target' Doppler frqeuency. Then the processed data are used by the monopulse method to measure the angle. Because the special Doppler filters can greatly reduce the influences between targets, the proposed method performs significantly better than the conventional monpulse method. Simulation results show its merits.

关 键 词：角度测量 单脉冲方法 多普勒滤波 

分 类 号：TN957.52[电子电信—信号与信息处理]