LFM脉冲雷达距离维快速搜索处理算法  

A Fast Range Search Algorithm for LFM Pulsed Radar

作　　者：张军[1] 占荣辉[1] 

机构地区：[1]国防科技大学电子科学与工程学院,湖南长沙410073

出　　处：《国防科技大学学报》2008年第6期114-117,128,共5页Journal of National University of Defense Technology

基　　金：航空科学基金资助项目(20070188012);国家部委预研基金资助项目

摘　　要：针对脉冲雷达近距离目标遮挡问题,从理论上分析了雷达最小作用距离不受限于脉冲宽度。在此基础上,以Chirp脉冲为例,提出了一种适合远近距离全程目标的快速搜索处理算法。该算法只需发射一种宽脉冲波形,而不必根据距离的变化改变脉宽,从而有效缩短了搜索时间,大大提高了搜索效率。仿真结果表明了理论分析的正确性和算法的有效性。A common issue in pulsed radar is the eclipsing effect for near range target. Firstly, theoretical analysis is presented to show that the radar＇s minimum operating range is not subject to pulse width, and then by using Chirp pulse as an example, a fast search algorithm suitable for both near and far range target is proposed. Compared with conventional search algorithms, which need multiple search wave form to cover the entire range domain, the presented algorithm needs only one single search mode, and thus reducing search time. Finally, simulation results validate the correctness of the theoretical analysis and effectiveness of the processing algorithm.

关 键 词：距离遮挡 Chirp脉冲压缩 快速搜索 

分 类 号：TN911.72[电子电信—通信与信息系统]