规避机动对雷达检测概率的影响研究  

A Study on the Influence of Evasive Maneuver on Radar Detection Probability

作　　者：林存坤 张小宽[1] 刘铭[2] 张晨新[1] 

机构地区：[1]空军工程大学防空反导学院,西安710051 [2]空军工程大学科研部,西安710051

出　　处：《现代雷达》2015年第5期17-20,40,共5页Modern Radar

基　　金：重点实验室创新基金资助项目

摘　　要：飞机突防时,常采用战术规避机动以提高突防效率和生存概率。文中研究了两种常用规避机动(水平急转弯机动和蛇形机动)对检测概率的影响。首先基于飞行动力学原理建立了机动航迹模型,解算出机动飞行时雷达视线角的变化情况;然后根据视线角的变化获取飞机的动态RCS序列;最后结合起伏目标的检测原理,利用SwerlingⅠ分布计算出了雷达瞬时检测概率。该仿真结果可以为飞机规划突防航迹提供理论参考。Aircrafts frequently take tactic evasive maneuver in the process of penetration for improving survivability and penetration probability. Two evasive maneuvers are studied for their effects on radar detection probability which are level swerve maneuver and S maneuver. Flight path is modeled with flight dynamics. Variety of angle in radar viewing aspect is calculated based on this mod- el. And then, dynamic RCS series is figured out according to the variety of viewing angle. Finally, radar target detection probabili- ty is counted using fluctuant target's detection theory in Swerling I distributing model. These simulation results can supply theory references to flight path programming.

关 键 词：规避机动 起伏目标 动态RCS序列 检测概率 

分 类 号：TN959[电子电信—信号与信息处理]