复杂运动下弹载雷达杂波建模方法  

Modeling Method of Clutter in Missile-Borne Radar Under Complex Motion Situation

作　　者：杨豪 余渝生 王志城 孙永岩[3] 刘艳阳[3] 林欣 黄鹏辉 邹子豪 YANG Hao;YU Yusheng;WANG Zhicheng;SUN Yongyan;LIU Yanyang;LIN Xin;HUANG Penghui;ZOU Zihao(School of Electronic Information and Electrical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Shanghai Academy of Spaceflight Technology,Shanghai 201109,China;Shanghai Institute of Satellite Engineering,Shanghai 201109,China)

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200240 [2]上海航天技术研究院,上海201109 [3]上海卫星工程研究所,上海201109

出　　处：《上海航天（中英文）》2023年第1期94-103,116,共11页Aerospace Shanghai（Chinese&English）

基　　金：中国航天科技集团有限公司第八研究院产学研合作基金资助项目;上海航天SAST基金(SAST2019-071)。

摘　　要：旋转是制导导弹为消除推力偏心、增强弹体飞行稳定性、提高打击精度所采用的一种重要手段。在导弹旋转飞行过程中,会产生马格努斯效应和陀螺效应,使旋转导弹具有特殊的动力学特性,这种特性表现为弹体除了绕自身的对称轴旋转外,还会产生进动与章动,弹体的复杂运动使杂波特性发生变化。本文提出一种对弹体的自旋、进动和章动进行精确建模的方法。仿真结果表明:与理想的正侧视模型相比,该方法能更加准确刻画导弹的运动特性,对弹载平台下的杂波进行更精确化的建模。Rotation is an important means used by guided missiles to eliminate the thrust eccentricity, enhance the flight stability, and improve the strike accuracy. However, the Magnus effect and gyro effect will be produced during the missile rotating flight, which makes the missile have special dynamic characteristics. The missile body not only rotates around its symmetry axis, but also produces precession and nutation. The complex motion of the missile body will change the clutter properties. In view of the changes, an accurate modeling method for the spin, precession, and nutation of the missile body is proposed. The simulation results show that compared with the clutter model in ideal level-flight, this method can describe the motion characteristics of the missile more accurately, so that the clutter under the missile platform can be modeled more precisely.

关 键 词：弹载雷达 多通道地面杂波建模 前视雷达 平台进动 弹体章动 

分 类 号：TN959.21[电子电信—信号与信息处理]