电子学报 ›› 2020, Vol. 48 ›› Issue (9): 1868-1872.DOI: 10.3969/j.issn.0372-2112.2020.09.027

• 科研通信 • 上一篇    下一篇

高频返回散射回波到达角探测技术研究

张成峰, 王世凯, 华彩成, 李强   

  1. 中国电波传播研究所, 山东青岛 266107
  • 收稿日期:2018-08-22 修回日期:2019-01-31 出版日期:2020-09-25 发布日期:2020-09-25
  • 作者简介:张成峰 男,1982年生,山东人,现为中国电波传播研究所高级工程师,主要研究方向为空间谱估计、雷达信号处理.E-mail:zhangcf2002cn@126.com
  • 基金资助:
    国防技术基础(No.JSHS2016210C009,No.JSHS2018210A001)

Research on DOA of HF Backscatter Sounding

ZHANG Cheng-feng, WANG Shi-kai, HUA Cai-cheng, LI Qiang   

  1. China Research Institute of Radio Wave Propagation, Qingdao, Shandong 266107, China
  • Received:2018-08-22 Revised:2019-01-31 Online:2020-09-25 Published:2020-09-25

摘要: 根据返回散射电离层回波特性,提出了基于Capon波束形成、对角加载以及加窗技术的返回散射回波DOA(Direction Of Arrival)估计的方法.利用"L"型短波二维天线接收阵列实现了返回散射电离层回波到达角的探测,获得频率-群路径-回波仰角电离图,收发站的直达波信号和准垂测信号的DOA估计结果验证了探测系统的准确性.

关键词: 返回散射探测, 空间谱估计, 对角加载, 仰角

Abstract: According to the ionospheric backscatter echoes characteristics,a method of DOA(Direction Of Arrival) estimation based on Capon beamforming,diagonal loading and windowing technology is proposed.The arrival angle of backscatter echoes is obtained by using the "L" type short wave two-dimensional receiving array.The frequency-group-elevation ionogram is obtained.The accuracy of the backscatter system is verified by the DOA estimation of direct wave and quasi-vertical signals.

Key words: HF backscatter sounding, spatial spectral estimation, diagonal loading, elevation

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