扩展目标跟踪Student’s t逆Wishart平滑算法

陈辉; 张丁丁; 连峰; 韩崇昭

doi:10.11999/JEIT231145

扩展目标跟踪Student’s t逆Wishart平滑算法

doi: 10.11999/JEIT231145

陈辉^1, ,,
张丁丁¹,
连峰²,
韩崇昭²

1.
兰州理工大学电气工程与信息工程学院兰州 730050
2.
西安交通大学自动化科学与工程学院西安 710049

基金项目: 国家自然科学基金(62163023, 62366031, 62363023, 61873116)，甘肃省教育厅产业支撑计划项目(2021CYZC-02)，2023年甘肃省军民融合发展专项资金项目，2024年甘肃省重点人才项目

详细信息

作者简介:
陈辉：男，教授，博士生导师，研究方向为多目标跟踪、数据融合、最优控制等

张丁丁：女，硕士生，研究方向为扩展目标跟踪

连峰：男，教授，博士生导师，研究方向为目标跟踪、信息融合与传感器管理

韩崇昭：男，教授，博士生导师，研究方向为多源信息融合、随机控制与自适应控制、非线性频谱分析等

通讯作者:
陈辉　huich78@hotmail.com

中图分类号: TN911.7; TP274
计量
- 文章访问数: 42
- HTML全文浏览量: 15
- PDF下载量: 6
- 被引次数: 0
出版历程
- 收稿日期: 2023-10-24
- 修回日期: 2024-01-24
- 网络出版日期: 2024-02-26

Student’s t Inverse Wishart Smoothing Algorithm for Extended Target Tracking

1.
School of electrical engineering and Information Engineering, Lanzhou University of Technology, Lanzhou 730050, China
2.
School of Automation Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China

Funds: The National Natural Science Foundation of China (62163023, 62366031, 62363023, 61873116), Gansu Province Education Department Industrial Support Project (2021CYZC-02), Special Fund Project for Civil-Military Integration Development of Gansu Province in 2023, Key Talent Project of Gansu Province in 2024

摘要

摘要: 脉冲干扰和离群量测信息等因素通常会导致异常的厚尾噪声，这使得以高斯假设为前提的扩展目标跟踪(ETT)估计器的性能急剧降低，针对该问题该文提出一种基于扩展目标随机矩阵模型(RMM)的Student’s t逆Wishart平滑(StIWS)算法。首先，将目标的运动状态以及过程噪声和量测噪声建模为Student’s t分布以表征异常噪声对扩展目标概率分布的影响，将目标扩展状态建模为服从逆Wishart分布的随机矩阵。然后，在Student’s t贝叶斯平滑框架下，详细推导了能在扩展目标的多重特征动态演变的过程中有效估计目标状态的StIWS算法。最后，通过扩展目标跟踪的仿真实验结果和真实场景实验结果验证了所提算法的有效性。
- 扩展目标跟踪 /
- Student’s t平滑 /
- 逆Wishart分布 /
- 厚尾噪声
Abstract: Elements such as pulse interference and outlier measurement information usually lead to abnormal heavy-tailed noise, which sharply reduces the performance of the Extended Target Tracking (ETT) estimator based on the Gaussian hypothesis. To address this problem, a Student’s t Inverse Wishart Smoothing (StIWS) algorithm based on the Random Matrix Model (RMM) is proposed. Firstly, the kinematic state of the target, process noise and measurement noise are modeled as a Student’s t distribution to characterize the effect of anomalous noise on the probability distribution of extended target, and the extended state of target is modeled as a random matrix which obeys inverse Wishart distribution. Then, in a Student’s t bayesian smoothing frame, the StIWS algorithm is derived in detail, which can effectively estimate target state in the process of the dynamic evolution of multiple characteristics of extended target. Finally, the effectiveness of the proposed algorithm is verified by the simulation experiment and the engineering experiment of extended target tracking.
- Extended target tracking /
- Student’s t smoothing /
- Inverse wishart distribution /
- Heavy-tailed noise

HTML全文

图 1 扩展轨迹跟踪图

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图 2 不同时段轨迹跟踪放大图

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图 3 质心位置均方根误差

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图 4 长短轴均方根误差

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图 5 方向均方根误差

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图 6 GWD评估结果

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图 7 不同时刻跟踪图

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