HPRF PD末制导雷达抗遮挡方法设计  

Anti-range Eclipse Method Designing for High PRF PD Guiding Radar

作　　者：王莹 苏宏艳[1] 朱淮城[1] 袁起[2] 刘丹[3] 

机构地区：[1]中国航天科工集团二院二十五所,北京100854 [2]中国航天科工集团第二研究院,北京100854 [3]国家知识产权局专利审查协作中心,北京100190

出　　处：《微波学报》2010年第S1期631-634,共4页Journal of Microwaves

摘　　要：本文介绍了距离遮挡产生的原因,分析了影响距离遮挡现象的主要因素,指出高脉冲重复频率脉冲多普勒(HPRFPD)末制导雷达距离遮挡现象影响严重,因此必须采取抗遮挡措施。介绍了现阶段抗距离遮挡的主要方法,通过分析每种方法的不足之处,指出有效对抗距离遮挡现象的关键在于准确测得目标距离,但是在高脉冲重复频率情况下,精确测距只能通过解模糊来获得。本文比较了目前解模糊的主要方法,选取出适合应用在末制导雷达环境下,解模糊时间短,准确度高的方法。在此基础上设计了末制导雷达抗遮挡策略,分别针对无精确距离信息和有精确距离信息两种情况,设计出不同的抗遮挡策略,通过仿真证明,此方法抗遮挡效果较好。The reason of engendering range eclipse is introduced in the paper and the factor of affecting range eclipse is analysed.The range eclipse is serious in HPRF PD guiding radar,for this reason some measures must be taken.The present methods of anti-range eclipse are introduced and the defects of these methods are analysed.Based on the analysis,we draw a conlusion that the key point of anti-range eclipse is accurate range measuring.But for the radar with high PRF,accurate range measuring is realized by resolving range ambiguity.The methods of resolving range ambiguity are compared firstly.Then the fastest and exactest method for HPRF PD guiding radar is put forword.Base on it the method of anti-range eclipse for HPRF PD radar is designed.The algorithms are presented for two conditions,one condition is of no accurate range measuring and the other condition is of receiveing accurate range measuring.The algorithms are proved by simulation,and the effect of anti-range eclipse is good.

关 键 词：高脉冲重复频率脉冲多普勒 末制导雷达 距离遮挡 解距离模糊 

分 类 号：TN974[电子电信—信号与信息处理]