散射点主动起伏引起的雷达测角误差分析  

Analysis of radar angle measurement error caused by active fluctuation of scattering point

作　　者：范昌 冯德军[1,2] 王俊杰[1,2] Fan Chang;Feng Dejun;Wang Junjie(School of Electronic Science,National University of Defense Technology,Changsha 410073,Hunan,China;State Key Laboratory of Complex Electromagnetic Effects on Electronics Information System,National University of Defense Technology,Changsha 410073,Hunan,China)

机构地区：[1]国防科技大学电子科学学院,湖南长沙410073 [2]国防科技大学电子信息系统复杂电磁环境效应国家重点实验室,长沙410073

出　　处：《航天电子对抗》2020年第4期40-45,共6页Aerospace Electronic Warfare

摘　　要：同一角度分辨单元内的不同散射点,通过其自身主动起伏的方式会产生角闪烁效应,研究了其对雷达测角产生的影响。在建模仿真时,以单脉冲测角雷达的相关原理为基础,通过定义调制系数并采取建模仿真的方式绘制散射点主动起伏程度与单脉冲测角精度关系曲线。仿真结果表明散射点主动起伏有助于角闪烁效应的产生,并显著增加了雷达角度测量误差。The angular glint is caused by modeling the scattering points,and furthermore,it would have an effect on the accuracy of angle measurement. Based on the monopulseradar,by defining modulation coefficient and modeling simulation,the relationship between active fluctuation degree of scattering points and single pulse angle measurement accuracy is drawn. The result indicates that it would increase the angle measurement error by regulating the scattering points in same angle resolution unit.

关 键 词：角闪烁 单脉冲测角 散射截面积 

分 类 号：TN972[电子电信—信号与信息处理] TN974[电子电信—信息与通信工程]