雷达与IFF正常配置时的相关算法  

A correlation method for radar and IFF in normal configuration

作　　者：王晓博[1] 王国宏[1] 阎红星[2] 

机构地区：[1]海军航空工程学院信息融合技术研究所,山东烟台264001 [2]北京航空航天大学,北京100083

出　　处：《电光与控制》2008年第8期20-25,31,共7页Electronics Optics & Control

基　　金：国家自然科学基金资助项目(60541001);全国优秀博士学位论文作者专项基金资助项目(200443)

摘　　要：为了能有效利用敌我识别器提供的信息对雷达所发现的目标进行敌我属性识别,研究了直角坐标系下雷达与IFF正常配置(IFF系统的应答信号的所在方位与雷达目标回波方位相同)时的相关问题。基于卡方分布检验理论和n/m逻辑准则,提出了直角坐标系下雷达与IFF正常配置时的相关算法。首先,基于卡方分布检验的思想,对于两坐标、三坐标雷达与IFF相关分别构造了平面、空间相关判别函数,给出了决策规则及决策门限的计算方法,讨论了多义性问题的处理;然后,为了提高正确相关概率和减小误相关概率,使用n/m逻辑进行相关判决;最后,进行了计算机仿真。仿真结果表明,该算法在将误相关概率控制在较低水平的同时,可以获得较高的正确相关概率。In order to make full use of the information from IFF （Identification Friend or Foe） equipment to identify the target detected by radar is friend or foe, the problem of radar-IFF correlation in normal configuration （the azimuth of IFF respondent signals is the same to the one of radar returns） in Cartesian coordinate system is discussed. Based on ehi-square distribution testing theory and n/m logic rule, a correlation method for radar and IFF in normal configuration in Cartesian coordinate system is presented. First, based on ehi-square distribution testing theory, plane and space correlation discriminate function are constructed separately for 2D and 3D radar-IFF correlation, and the decision-making rule and the computation formula of decision thresholds are given.The regulation for ambiguity is also presented.Then, in order to improve correct correlation probability and reduce wrong correlation probability, the n/m logic rule is used. Finally, computer simulations are carried out and the results show that the method can obtain high correlation probability while keeping a low wrong correlation probability.

关 键 词：雷达 敌我识别 协同空战 正常配置 相关概率 

分 类 号：V243.2[航空宇航科学与技术—飞行器设计] TN95[电子电信—信号与信息处理]