系统工程与电子技术 ›› 2025, Vol. 47 ›› Issue (5): 1404-1413.doi: 10.12305/j.issn.1001-506X.2025.05.03

• 电子技术 • 上一篇    

复杂环境下天基无源协同多目标初始定轨方法

张洪源1, 龚柏春1,*, 韩飞2, 孙玥2, 宁昕3   

  1. 1. 南京航空航天大学航天学院, 江苏 南京 211106
    2. 上海航天控制技术研究所, 上海 201109
    3. 西北工业大学航天学院, 陕西 西安 710072
  • 收稿日期:2024-05-22 出版日期:2025-06-11 发布日期:2025-06-18
  • 通讯作者: 龚柏春
  • 作者简介:张洪源 (2000—),男,硕士研究生,主要研究方向为空间目标无源协同探测与跟踪
    龚柏春 (1987—),男,副教授,博士,主要研究方向为空间非合作目标态势感知、飞行器集群导航与控制
    韩飞 (1985—),男,研究员,博士,主要研究方向为空间操控
    孙玥 (1987—),女,工程师,硕士,主要研究方向为空间操控动力学与控制
    宁昕 (1982—),男,教授,博士,主要研究方向为复杂空间系统设计、动力学建模与控制
  • 基金资助:
    国家自然科学基金(12272168);国家自然科学基金(42271448);空间智能控制技术全国重点实验室开放基金(HTKJ2023KL502015)

Space-based passive cooperative multi-target initial orbit determination method in complex environments

Hongyuan ZHANG1, Baichun GONG1,*, Fei HAN2, Yue SUN2, Xin NING3   

  1. 1. College of Astronautics, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
    2. Shanghai Aerospace Control Technology Institute, Shanghai 201109, China
    3. School of Astronautics, Northwestern Polytechnical University, Xi'an 710072, China
  • Received:2024-05-22 Online:2025-06-11 Published:2025-06-18
  • Contact: Baichun GONG

摘要:

在天基无源协同多目标测角数据关联与多目标初始定轨任务背景下, 针对传感器杂波和漏检的复杂环境下传统方法关联误匹配率高导致定轨精度差的问题, 提出一种基于参数修正和聚类估计的多目标数据关联与多目标初始定轨方法。首先, 建立包含地球非球形J2项和月球引力摄动的动力学模型与视线角测量模型, 推导传感器杂波与漏检模型并构建模拟数据生成器。然后, 根据量测关联度评价指标构建数据关联代价矩阵, 提出基于参数修正和聚类估计的代价矩阵处理方法, 并应用最优分配算法求解关联结果。接着, 根据协同关联结果和时序关联结果求出全局关联结果, 并参照全局关联结果求解多目标的轨道速度。最后, 以对地球静止轨道邻域的10个目标进行协同观测为例, 通过数值打靶仿真实验对所提方法进行仿真验证。仿真结果表明, 所提方法能够有效抵抗传感器杂波与漏检的影响, 提高关联准确性与多目标初始定轨精度, 相对定轨误差小于1%。

关键词: 空间态势感知, 无源探测, 数据关联, 协同定轨, 多目标跟踪

Abstract:

In the context of the space-based passive cooperative multi-target angular data association and initial orbit determination mission, to address the problem of poor orbit determination accuracy due to the high association mis-match rate of the traditional method in the complex environment where sensor clutter and missed detection are taken into account, a method for multi-target data association and multi-target initial orbit determination based on parameter correction and clustering estimation is proposed. First, a dynamics model incorporating the Earth's non-spherical J2 term and the Moon's gravitational perturbation and line-of-sight angle measurement model are developed, a sensor clutter and missed detection model is derived and a simulated data generator is constructed. Second, the data association cost matrix is constructed according to the evaluation metrics of the measurement association, the cost matrix processing method based on parameter correction and clustering estimation is proposed, and the optimal allocation algorithm is applied to find out the association results. Third, the global associations are derived based on the cooperative associations and the time-series associations, and the multi-target orbit velocities are solved with reference to the global associations. Finally, the proposed method is validated by numerical targeting simulation experiments with coordinated observation of 10 targets in the geostationary Earth orbit neighborhood. Simulation results show that the proposed method is effective in resisting the influence of sensor clutter and missed detection, improving the association and multi-target initial orbit determination accuracy, and the relative orbit error is less than 1%.

Key words: space situation awareness, passive detection, data association, cooperative orbit determination, multi-target tracking

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