| 约束仅方位跟踪粒子滤波器研究 |
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| 引用本文： | 郭延芬,谭雪琴.约束仅方位跟踪粒子滤波器研究[J].南京理工大学学报(自然科学版),2008,32(6). |
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| 作者姓名： | 郭延芬 谭雪琴 |
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| 作者单位： | 1. 东南大学,信息科学与工程学院,江苏,南京,210018
2. 南京理工大学,电子工程与光电技术学院,江苏,南京,210094 |
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| 摘 要： | 该文研究了杂波干扰下适用于平面机动目标实时定位的粒子滤波器的设计和实现.运用贝叶斯递推方法,分析了通用粒子滤波算法.应用马尔可夫链理论,建立了目标机动的多模式模型.针对约束仅方位跟踪(CBOT)的实际条件,推导了粒子滤波器中的最优重要密度公式.综合粒子滤波算法和约束仅方位跟踪理论,得出了约束仅方位跟踪粒子滤波器的伪码.对约束仅方位跟踪粒子滤波器的研究表明:在目标受到道路图之类的约束假设下,可以去除对本站作特定机动的要求;可在杂波环境中、目标作任意非线性机动的情况下,实现仅方位跟踪;跟踪定位距离大、角度宽;采用最优重要密度,可大大减少粒子数,降低计算量.
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| 关 键 词： | 目标跟踪 贝叶斯方法 约束仅方位跟踪 粒子滤波器 最优重要密度 |
Constrained Bearing Only Tracking Particle Filters |
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| GUO Yan-fen,TAN Xue-qin.Constrained Bearing Only Tracking Particle Filters[J].Journal of Nanjing University of Science and Technology(Nature Science),2008,32(6). |
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| Authors: | GUO Yan-fen TAN Xue-qin |
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| Institution: | 1.College of Information Science and Engineering;Southeast University;Nanjing 210018;China;2.School of Electronic Engineering and Optoelectronic Technology;NUST;Nanjing 210094;China |
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| Abstract: | This paper studies the design and implementation method of particle filters suitable for the plane maneuvering target's real time tracking.A general particle algorithm is analyzed by using Bayesian recursive method and a multi-mode model of target tracking is established by using Markov chain method.Aiming at the constrained bearing only tracking(CBOT)'s actual condition,the formula of optimal importance density(OID) used in particle filters is derived.The pseudo code integrating the particle filter algorit... |
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| Keywords: | target tracking Bayesian method constrained bearing only tracking particle filters optimal importance density |
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