系统工程与电子技术 ›› 2019, Vol. 41 ›› Issue (12): 2723-2729.doi: 10.3969/j.issn.1001-506X.2019.12.09

• 传感器与信号处理 • 上一篇    下一篇

雷达舰船目标HRRP成像视角参数估计

魏存伟1,2, 段发阶1, 刘先康2, 任杰2, 罗军3, 鉴福升3   

  1. 1. 天津大学精密仪器与光电子工程学院, 天津 300072; 2. 中国人民解放军海军七〇一工厂, 北京 100015; 3. 中国人民解放军91977部队, 北京 100161
  • 出版日期:2019-11-25 发布日期:2019-11-25

HRRP viewing angle parameter estimation of radar ship targets

WEI Cunwei1,2, DUAN Fajie1, LIU Xiankang2, REN Jie2, LUO Jun3, JIAN Fusheng3   

  1. 1. College of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China;
    2. No.701 Factory of the PLA(N), Beijing 100015, China; 3. Unit 91977 of the PLA, Beijing 100161, China
  • Online:2019-11-25 Published:2019-11-25

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摘要：

针对雷达舰船目标一维距离像敏感于姿态角,分析了成像视角对船长估计精度的影响,提出一种舰船成一维距离像视角参数估计方法,首先建立雷达舰船运动模型,对雷达跟踪数据预处理,并估计出目标的运动状态和航速,通过稳健回归估计方法进行二次曲线拟和,估计出舰船目标成像视角参数,通过本文方法估计的视角参数可用于基于高分辨距离像的舰船目标识别和船长估计中。经实测数据验证表明,估计出的视角平均误差小于5°,本文方法易于实践,具有较高的工程应用价值。

关键词: 雷达, 成像视角, 一维距离像, 船长

Abstract:

For the sensitivity problem of radar ship attitude angle, the influence of the viewing angle on the estimation accuracy of the ship’s length is analyzed. A method of the high range resolution profile (HRRP)  viewing angle extraction based on radar track is proposed. Firstly, a simplified radar ship motion model is established, then the track is preprocessed, the target’s state of motion and speed are estimated. The robust regression method is used to simulate the curves and estimate the viewing angle parameter of the ship target. The angle estimated by this algorithm can be used in the radar ship target automatic recognition system and ship length estimation.The measured data shows that the estimated error accuracy is less than 5°. This method is easy to practice and has high engineering application value.

Key words: radar, viewing angle, high range resolution profile (HRRP), ship length

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