A method of Robust low-angle target height and compound reflection coefficient joint estimation

doi:10.23919/JSEE.2022.000033

Journal of Systems Engineering and Electronics ›› 2022, Vol. 33 ›› Issue (2): 322-329.doi: 10.23919/JSEE.2022.000033

收稿日期:2021-01-13 接受日期:2022-02-19 出版日期:2022-05-06 发布日期:2022-05-06

A method of Robust low-angle target height and compound reflection coefficient joint estimation

Shenghua WANG^1,^2,*(), Yunhe CAO³(), Yutao LIU²()

¹ School of Communications and Information Engineering, Xi’an University of Posts and Telecommunications, Xi’an 710061, China
² Science and Technology on Communication Networks Laboratory, Shijiazhuang 050081, China
³ National Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, China

Received:2021-01-13 Accepted:2022-02-19 Online:2022-05-06 Published:2022-05-06
Contact: Shenghua WANG E-mail:wshh_2011@163.com;cyh_xidian@163.com;yutaoliu2020@163.com
About author:|WANG Shenghua was born in 1979. She received her Ph.D. degree in information and communication engineering from Xidian University, Xi’an, China, in 2019. She joined Xi’an University of Posts and Telecommunications, Xi’an, China in 2019. Her research interests include array signal processing, radar signal processing integrated with communication, and low angle radar systems. E-mail: wshh_2011@163.com||CAO Yunhe was born in 1978. He received his B.S. degree in measuring control and instrument engineering in 2001, and M.S. and Ph.D. degrees in electrical engineering from Xidian University, Xi’an, China, in 2004 and 2006, respectively. He is a professor in Xidian University. His research interests include array signal processing, MIMO radar, and wideband radar signal processing. E-mail: cyh_xidian@163.com||LIU Yutao was born in 1981. He received his Ph.D. degree in communication engineering from Harbin Institute of Technology, Harbin, China. His research interests include communication signal processing, and radar signal processing integrated with communication. E-mail: yutaoliu2020@163.com
Supported by:
This work was supported by the National Natural Science Foundation of China (61771367) and the Science and Technology on Communication Networks Laboratory (6142104190204)

摘要/Abstract

Abstract:

It is always a challenging issue for radar systems to estimate the height of a low-angle target in the multipath propagation environment. The highly deterministic maximum likelihood estimator has a high accuracy, but the errors of the ground reflection coefficient and the reflecting surface height have serious influence on the method. In this paper, a robust estimation method with less computation burden is proposed based on the compound reflection coefficient multipath model for low-angle targets. The compound reflection coefficient is estimated from the received data of the array and then a one-dimension generalized steering vector is constructed to estimate the target height. The algorithm is robust to the reflecting surface height error and the ground reflection coefficient error. Finally, the experiment and simulation results demonstrate the validity of the proposed method.

Key words: low-angle target, robust joint estimation, compound reflection coefficient, multipath, direction of arrival (DOA)

. [J]. Journal of Systems Engineering and Electronics, 2022, 33(2): 322-329.

Shenghua WANG, Yunhe CAO, Yutao LIU. A method of Robust low-angle target height and compound reflection coefficient joint estimation[J]. Journal of Systems Engineering and Electronics, 2022, 33(2): 322-329.

图/表 10

参考文献 32

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A method of Robust low-angle target height and compound reflection coefficient joint estimation

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