指挥控制与仿真2024，Vol.46Issue(5)：55-61,7.DOI:10.3969/j.issn.1673-3819.2024.05.008
基于改进平方根无迹粒子滤波的RAM类目标跟踪
RAM target tracking based on improved SR-UPF algorithm
张涵 1张逊 1梁燊1
作者信息
- 1. 江苏自动化研究所,江苏 连云港 222061
- 折叠
摘要
Abstract
RAM target has complex motion,which puts forward higher requirements for tracking system.Aiming at particle degradation and other problems existing in the process of particle filter solving RAM target tracking,this paper calculates the posterior probability density function as the prior probability density function of the particle filter through unscented transfor-mation,so as to improve the fitting degree of the posterior probability density function and finally improve the particle effec-tiveness.At the same time,qr decomposition is used to replace part of Cholesky decomposition in the process of unscented transformation,so that the variance matrix of the output signal remains non-negative.Finally,this paper establishes a dynam-ic model for a reentry target trajectory,and simulates with Matlab to verify the effectiveness of the proposed algorithm.关键词
平方根无迹粒子滤波/无迹变换/RAM类目标/粒子退化Key words
SR-UPF/unscented transformation/RAM target/particle degradation分类
信息技术与安全科学引用本文复制引用
张涵,张逊,梁燊..基于改进平方根无迹粒子滤波的RAM类目标跟踪[J].指挥控制与仿真,2024,46(5):55-61,7.
