视频小卫星目标跟踪视野分区防脱靶控制
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作者单位:

1.国防科技大学 空天科学学院, 湖南 长沙 410073 ; 2.西昌卫星发射中心, 四川 西昌 615000

作者简介:

范才智(1980—),男,湖南邵阳人,研究员,博士,博士生导师,E-mail:caizhifan@nudt.edu.cn

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中图分类号:

V19

基金项目:

湖南省重点领域研发计划资助项目(2023NK2008)


Anti-off-target control of target tracking for small video satellitebased on field of view zoning
Author:
Affiliation:

1.College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073 , China ; 2.Xichang Satellite Launch Center, Xichang 615000 , China

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    摘要:

    针对视频小卫星与观测目标存在较大初始相对姿态偏差和角速度,目标容易偏离相机视场造成脱靶的问题,设计了一种视频小卫星目标跟踪视野分区防脱靶控制方法,该方法将星载相机矩形成像视野按照内切圆划分为内外两部分,内切圆内部和外部分别基于势函数和拟欧拉旋转法设计跟踪控制器,并利用Barbalat引理证明两个区域控制律的渐近稳定性,同时在理论上证明了目标进入视野内切圆区域后,在基于势函数的控制器作用下可以确保不脱靶。通过控制器对比仿真,结果表明拟欧拉旋转法相比于比例-微分(proportional-derivative, PD)控制具有更强的抑制目标偏离视场能力,结合拟欧拉旋转法和势函数法的视野分区控制与全视场的拟欧拉旋转法相比,能够有效实现对较快速机动目标的防脱靶控制,从而实现连续跟踪观测。

    Abstract:

    An anti-off-target control method for small video satellite target tracking based on visual field zoning was proposed to address the problem of large initial relative attitude deviation and angular velocity between small video satellite and observation targets, which can easily deviate from the camera field of view and cause off target. In this method, the rectangular imaging field of the satellite-carried camera was divided into inner and outer parts according to the tangent circle. The tracking controller of the inner and outer parts of the tangent circle was designed based on the potential function and the quasi-Euler rotation method respectively. By using the Barbalat′s lemma, the asymptotic stability of control laws in both regions was proved, and it was also proved by theory that the potential function controller can ensure that target would not leave the inscribed circle of visual field after entering it. Through controller comparison and simulation, the results show that the quasi-Euler rotation method has a stronger ability to suppress target deviation from the field of view compared with PD control. Compared with the full quasi-Euler rotation method, the field of view partition control combining the quasi-Euler rotation method and potential function method can effectively achieve anti-off-target control for faster maneuvering targets, thereby achieving continuous tracking and observation.

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范才智, 钟子凯, 王猛猛, 等. 视频小卫星目标跟踪视野分区防脱靶控制[J]. 国防科技大学学报, 2025, 47(3):98-108.

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  • 收稿日期:2023-10-12
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  • 在线发布日期: 2025-06-03
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