基于相对角动量的空间非合作目标机动仅测角检测方法  

Angle-only measurement maneuver detecting method for space non-cooperative target based on relative angular momentum

作　　者：龚柏春 金鑫 张仁勇[2] 陈修桥 GONG Baichun;JIN Xin;ZHANG Renyong;CHEN Xiuqiao(College of Astronautics,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;Technology and Engineering Center for Space Utilization,Chinese Academy of Sciences,Beijing 100038,China;Unit 32032 of the PLA,Beijing 100094,China)

机构地区：[1]南京航空航天大学航天学院,江苏南京210016 [2]中国科学院空间应用工程与技术中心,北京100038 [3]中国人民解放军32032部队,北京100094

出　　处：《系统工程与电子技术》2023年第3期814-821,共8页Systems Engineering and Electronics

基　　金：国家自然科学基金(11802119,12272168);空间智能控制技术重点实验室开放基金(6142208200303,2021-JCJQ-LB-010-04)资助课题。

摘　　要：针对传统方法在空间非合作目标小脉冲轨道机动检测过程中性能不佳的问题,在构建了一种基于相对角动量的新型待检特征量的基础上,提出了利用无源光学相机仅测角信息的轨道机动检测新方法。首先,在轨道坐标系下建立了基于Clohessy-Wiltshire方程的相对动力学模型和相机偏离质心安装时的相对视线角测量模型;然后,给出了相对角动量的定义并量化分析了以相对角动量作为机动检测特征标志的优越性;接着,设计了基于二次滑窗方差比值的机动检测算法框架;最后,通过数值仿真对所提算法进行了有效性验证和性能分析。仿真结果表明,该方法可以实现对近圆轨道目标的快速轨道机动检测,机动时间点检测误差在60 s以内。To improve the performance of maneuver detection for space non-cooperative targets with mall pulse orbit based on existed approaches,an orbit maneuver detection algorithm using angle-only measurements by passive optical camera is developed,where the relative angular momentum is introduced as a new characteristic to be measured.Firstly,the relative dynamics model based on Clohessy-Wiltshire equations and the relative line-of-sight measurement model when the camera is installed off the center of mass are established in the orbit coordinate system.Then,the definition of relative angular momentum is given and the benefit of this characteristic as the test parameter to detect maneuver is analyzed quantitatively.Next,the framework of the maneuver detection algorithm based on variance ratio of double sliding window is designed.Finally,simulations are conducted to verify the effectiveness and performance of the proposed algorithm.The simulation results show that the proposed algorithm can realize the fast orbit maneuver detection to the near-circular orbit target and the error is within 60 s.

关 键 词：空间非合作目标 轨道机动检测 相对角动量 仅测角 

分 类 号：V488.2[航空宇航科学技术]