西安电子科技大学学报

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一种利用幅度信息的航迹质量评估方法

刘红亮1,2;周生华1,2;刘宏伟1,2;鲁瑞莲1,2;严俊坤1,2   

  1. (1. 西安电子科技大学 雷达信号处理国家重点实验室,陕西 西安 710071;
    2. 西安电子科技大学 信息感知技术协同创新中心,陕西 西安 710071)
  • 收稿日期:2015-11-24 出版日期:2017-02-20 发布日期:2017-04-01
  • 作者简介:刘红亮(1989-),男,西安电子科技大学博士研究生,E-mail:hlliuxidian@gmail.com
  • 基金资助:

    国家自然科学基金资助项目(61401329, 61271291, 61201285);国家杰出青年科学基金资助项目(61525105);中国博士后科学基金资助项目(2015M580817)

Track quality evaluation method using amplitude information

LIU Hongliang1,2;ZHOU Shenghua1,2;LIU Hongwei1,2;LU Ruilian1,2;YAN Junkun1,2   

  1. (1. National Key Lab. of Radar Signal Processing, Xidian Univ., Xi'an 710071, China;
    2. Collaborative Innovation Center of Information Sensing and Understanding, Xidian Univ., Xi'an 710071, China)
  • Received:2015-11-24 Online:2017-02-20 Published:2017-04-01

摘要:

提高虚警概率可提高弱目标的探测性能,但却会产生过多的虚假航迹,为此提出了一种利用幅度信息的航迹质量评估方法,以进一步区分目标航迹和虚假航迹.首先根据单个点迹的幅度信息给出单个点迹的质量评估函数;而后基于航迹质量评估时间窗内的点迹质量计算航迹质量;最终根据航迹质量完成航迹确认、航迹维持以及航迹撤销.仿真实验表明,所提方法在高虚警概率环境下,能够以严格的航迹质量标准获得较高的航迹确认概率和航迹维持概率,并具有较低的航迹撤销概率,意味着弱目标探测性能的提升.

关键词: 雷达, 目标跟踪, 航迹质量评估, 幅度信息

Abstract:

Increasing the false alarm rate can improve detection performance of weak targets, but it will induce too many false tracks. Therefore, a track quality evaluation method based on amplitude information is proposed in this paper, to further distinguish target tracks and false tracks. Firstly, according to the amplitude information on one plot, we give a quality evaluation function for each plot; then, based on the plot quality in a temporal window for track quality evaluation, we calculate the track quality; finally, we accomplish track confirmation, track maintenance and track termination according to the calculated track quality. Numerical results indicate that the proposed method can obtain a higher probability of track confirmation and track maintenance at a strict track quality standard with a lower probability of track deletion, indicating the improvement of detection performance of weak targets.

Key words: radar, target tracking, track quality evaluation, amplitude information