一种抑制雷达角闪烁的ASUKF相对导航算法  

A Relative Navigation Algorithm ASUKF for Suppressing Radar Angular Glint

作　　者：施常勇 张竞天 龚程 张钰轲 SHI Changyong;ZHANG Jingtian;GONG Cheng;ZHANG Yuke(Shanghai Institute of Spaceflight Control Technology,Shanghai 201000 China;Shanghai Key Laboratory of Aerospace Intelligent Control Technology,Shanghai 201000 China)

机构地区：[1]上海航天控制技术研究所,上海201000 [2]上海市空间智能控制技术重点实验室,上海201000

出　　处：《电光与控制》2025年第3期82-87,共6页Electronics Optics & Control

摘　　要：针对雷达角闪烁带来的非高斯噪声特性下非线性系统滤波问题,常规滤波处理会受到较大影响,出现性能下降,甚至发散的情况,提出一种抑制雷达角闪烁的ASUKF滤波相对导航算法,估计追踪航天器与目标航天器间的相对位置和相对速度。ASUKF滤波器能够利用Sage-Husa自适应调整策略,快速估计量测噪声统计特性,并采用UKF实现对非线性系统的精准估计,对受到污染的高斯分布噪声具有一定的鲁棒性,最后通过仿真校验了该相对导航方法的有效性。在出现角闪烁噪声的情况下,其相对位置精度统计均值优于5.77 m,相对速度优于0.22 m/s,且其较EKF和UKF更具抗干扰能力,可提高相对导航系统的鲁棒性和稳定性。In view of the problem of nonlinear system filter under non-Gaussian noise caused by radar angular glint conventional filter will be greatly affected and performance degradation or even divergence may occur.To solve the problem a relative navigation algorithm of ASUKF filter is proposed to suppress radar angular glint and estimate the relative position and relative speed between the tracking spacecraft and the target spacecraft.ASUKF filter can use Sage-Husa method to adjust the strategy adaptively quickly estimate the statistical characteristics of measurement noise and use UKF to achieve accurate estimation of nonlinear system.It has certain robustness to the contaminated Gaussian distribution noise.Finally the effectiveness of the relative navigation method is verified by simulation:1)In the case of angular glint noise the statistical mean value of relative position accuracy is better than 5.77 m and the relative speed respectively is better than 0.22 m/s;and 2)It has better anti-interference ability than EKF and UKF and can improve the robustness and stability of relative navigation system.

关 键 词：ASUKF滤波 角闪烁 非高斯分布 相对导航 鲁棒性 

分 类 号：V249[航空宇航科学与技术—飞行器设计]