应用科学学报 ›› 2012, Vol. 30 ›› Issue (6): 607-612.doi: 10.3969/j.issn.0255-8297.2012.06.008

• 信号与信息处理 • 上一篇    下一篇

拟蒙特卡罗粒子滤波改进算法及其在雷达目标跟踪中的应用

陈志敏, 薄煜明, 吴盘龙, 刘正凡   

  1. 南京理工大学自动化学院,南京210094
  • 收稿日期:2011-07-08 修回日期:2011-10-28 出版日期:2012-11-27 发布日期:2011-10-28
  • 通信作者: 陈志敏,博士生,研究方向:导航制导、信息处理、控制与系统,E-mail: chenzhimin@188.com
  • 作者简介:陈志敏,博士生,研究方向:导航制导、信息处理、控制与系统,E-mail: chenzhimin@188.com;薄煜明,研究员,博导,研究方向:控制理论与控制应用、目标跟踪、导航制导与控制,E-mail: byming@mail.njust.edu.cn
  • 基金资助:

    国家自然科学基金(No. 61104196);高等学校博士学科点专项科研基金(No. 20113219110027);南京理工大学自主科研专项计划自主项目基金(No. 2010ZYTS051);南京理工大学紫金之星基金(No. AB41381)资助

Improved Quasi-Monte-Carlo Particle Filtering and Its Application to Radar Target Tracking

CHEN Zhi-min, BO Yu-ming, WU Pan-long, LIU Zheng-fan   

  1. School of Automation, Nanjing University of Science and Technology, Nanjing 210094, China
  • Received:2011-07-08 Revised:2011-10-28 Online:2012-11-27 Published:2011-10-28

摘要: 拟蒙特卡罗粒子滤波算法(quasi-Monte-Carlo particle filter, QMC-PF)精度不高,运算复杂度大,难以满足雷达机动目标跟踪精确性和实时性需求. 为此,提出一种基于BP神经网络的新型拟蒙特卡罗粒子滤波算法. 该算法将大权重粒子通过QMC分裂采样产生低差异性的子代粒子,以此来替代低权重粒子,保证了样本的有
效性和多样性;同时利用BP神经网络计算子代粒子的权重,提高了滤波的精度和速度;最后在不同的模型中进行仿真. 实验结果表明,与QMC-PF相比,所提出的算法提高了精度和运算速度,适用于雷达机动目标的跟踪.

关键词: 粒子滤波, 拟蒙特卡罗, 神经网络, 目标跟踪, 闪烁噪声

Abstract: To address the difficulties in meeting the needs of precise and real-time radar maneuvering target tracking due to low precision and high computation complexity of quasi-Monte-Carlo particle filter (QMCPF), a new quasi-Monte-Carlo particle filter algorithm base on BP neural network (NQMC-PF) is proposed.
Through QMC fission sampling, this algorithm generates low-discrepancy progeny particles to replace the low-weight particles to guarantee validity and diversity of the samples. Meanwhile, the algorithm uses BP neural network to calculate the weight of offspring of particles. With different models, the algorithm is tested. Experimental results show that, compared to QMC-PF, the proposed algorithm can enhance precision and increase calculation speed, and thus is applicable to radar for tracking maneuvering targets.

Key words: particle filter, quasi-Monte-Carlo, neural network, target tracking, glint noise

中图分类号: