一种新的未知杂波环境下的PHD滤波器

doi:10.3969/j.issn.1001-2400.2014.05.004

J4 ›› 2014, Vol. 41 ›› Issue (5): 18-23.doi: 10.3969/j.issn.1001-2400.2014.05.004

一种新的未知杂波环境下的PHD滤波器

李翠芸¹;江舟^1,2;姬红兵¹

(1. 西安电子科技大学电子工程学院，陕西西安 710071；
2. 中国人民解放军95972部队，甘肃酒泉 735018)

收稿日期:2013-06-13 出版日期:2014-10-20 发布日期:2014-11-27
通讯作者: 李翠芸
作者简介:李翠芸(1976-)，女，副教授，博士，E-mail: cyli@xidian.edu.cn．
基金资助:
国家自然科学基金资助项目(61372003)；国家自然科学基金青年基金资助项目(61101246，61301289)；中央高校基本科研业务费专项资金资助项目(K5051202014)；国家留学基金资助项目(201206965015)

Novel PHD filter in unknown clutter environment

LI Cuiyun¹;JIANG Zhou^1,2;JI Hongbing¹

(1. School of Electronic Engineering, Xidian Univ., Xi'an 710071, China;
2. Unit 95972, PLA, Jiuquan 735018, China)

Received:2013-06-13 Online:2014-10-20 Published:2014-11-27
Contact: LI Cuiyun

摘要/Abstract

摘要：

针对多目标跟踪中概率假设密度(PHD)滤波器在杂波模型与先验知识不匹配情况下滤波性能急剧下降的缺点，将增广状态空间引入PHD滤波器，提出了一种新的未知杂波环境下的PHD滤波器．该滤波器利用增广状态空间区分目标状态空间与杂波状态空间，通过量测对杂波模型进行估计，不需要杂波先验知识，避免了因杂波强度的先验知识选择不当而造成PHD滤波器跟踪性能下降的问题．仿真结果表明，该算法在未知杂波环境下，具有稳定的跟踪效果；在保证实时性的前提下，其跟踪精度与传统PHD滤波器在杂波模型匹配情况下相当．

关键词: 多目标跟踪, 概率假设密度, 未知杂波, 增广状态空间

Abstract:

Aiming at improving the poor performance of the Probability Hypothesis Density(PHD) filter when the clutter model and the prior knowledge are mismatched, a novel PHD filter into which we introduce the augmented state space and which is used under the unknown clutter circumstance is proposed in this paper. The proposed filter can distinguish the target state space and the clutter state space by the augmented state space. Using the estimate of the unknown clutter model from the measurement, the filter can avoid the tracking performance reduction caused by the improper model selection of the unknown clutter. Simulation results show that the proposed algorithm can achieve a stable tracking performance under the unknown clutter circumstance and a tracking accuracy equal to that of the conventional PHD filter used in the unknown clutter circumstance in the real-time context.

Key words: multitarget tracking, probability hypothesis density, unknown clutter, augmented state space

中图分类号:

TN953

李翠芸;姬红兵;江舟. 一种新的未知杂波环境下的PHD滤波器[J]. J4, 2014, 41(5): 18-23.

LI Cuiyun;JIANG Zhou;JI Hongbing. Novel PHD filter in unknown clutter environment[J]. J4, 2014, 41(5): 18-23.

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一种新的未知杂波环境下的PHD滤波器

Novel PHD filter in unknown clutter environment

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