›› 2019, Vol. 39 ›› Issue (4): 11-.doi: 10.16708/j.cnki.1000-758X.2019.0024

• 研究探讨 • 上一篇    下一篇

单星测频静态目标无源定位研究

 黄静, 赵薇薇, 陈雪华, 刘喆, 王刚   

  1. 北京遥感信息研究所,北京100192
  • 收稿日期:2018-09-06 修回日期:2019-02-12 出版日期:2019-08-25 发布日期:2019-06-24
  • 作者简介:黄静(1983-),女,工程师,研究方向为卫星遥感信息处理
  • 基金资助:

    国家自然科学基金面上项目(61571063)

Passive positoning algorithm based on single satellite frequency measurement

 HUANG  Jing, ZHAO  Wei-Wei, CHEN  Xue-Hua, LIU  Zhe, WANG  Gang   

  1. Beijing Institute of Remote Sensing Information, Beijing 100192,China
  • Received:2018-09-06 Revised:2019-02-12 Online:2019-08-25 Published:2019-06-24

摘要: 提出了一种基于非线性最优化技术的单星测频无源定位算法,该方法利用单颗卫星单个通道在不同位置上测得的信号多普勒频率,实现对地面固定辐射源的无源定位,具有有效载荷简单、对卫星姿态无特殊要求、定位收敛快、精度较高等优点。同时,探讨了多普勒频率测量误差预处理技术,以及基于PAR模型的系统误差分离技术,通过对测量误差的分离与处理,可以大幅度提高频率测量数据的精度,从而保证后续测频定位精度。最后,通过仿真试验和工程实际,验证了单星测频定位技术的有效性和准确性。

关键词: 单星, 多普勒频率, 无源定位, 非线性, 最优化, 遥感信息处理

Abstract: A passive positioning algorithm by single satellite frequency measurement based on the nonlinear optimization theory is proposed. This algorithm utilizes a series of Doppler frequency data acquired by one satellite at different places to locate the radiant points on the earth. Based on this, one Doppler frequency data preprocessing method, and one measurement error separation method based on Polynomial Autoregressive (PAR) model are also provided. Finally, the validity and accuracy of the proposed algorithm is verified by simulation results and engineering data.

Key words: single satellite, Doppler frequency, passive positioning, nonlinear, optimization, remote sensing information processing