Journal of Systems Engineering and Electronics ›› 2023, Vol. 34 ›› Issue (4): 879-893.doi: 10.23919/JSEE.2023.000066

• DEFENCE ELECTRONICS TECHNOLOGY • Previous Articles    

A modified OMP method for multi-orbit three dimensional ISAR imaging of the space target

Libing JIANG1(), Shuyu ZHENG1,*(), Qingwei YANG1, Peng YANG2(), Zhuang WANG1()   

  1. 1 Science and Technology on Automatic Target Recognition, National University of Defense Technology, Changsha, 410073, China
    2 Xi’an Satellite Measurement and Control Center, Xi’an 710600, China
  • Received:2021-05-25 Online:2023-08-18 Published:2023-08-28
  • Contact: Shuyu ZHENG E-mail:jianglibing@nudt.edu.cn;1846372244@qq.com;liuzhang881@126.com;zhuang_wang@sina.com
  • About author:
    JIANG Libing was born in 1982. He received his Ph.D. degree in information and communication engineering from National University of Defense Technology,Changsha, China, in 2014. He is currently a vice professor in the School of Electronics Science and Engineering, National University of Defense Technology, Changsha, China. His current research interests include electromagnetic scattering modeling, microwave imaging and radar image interpretation. E-mail: jianglibing@nudt.edu.cn

    ZHENG Shuyu was born in 1996. He received his B.S. degree in fire control and command and the M.S. degree in electronic science and technology from Air Force Engineering University, Xi’an, China, in 2014 and 2020, respectively. Now he is a currently working toward to the Ph.D. degree in the Science and Technology on Automatic Target Recognition, National University of Defense Technology, Changsha, China.His current research interests include radar signal processing and three dimensional imaging of space targets. E-mail: 1846372244@qq.com

    YANG Qingwei was born in 1994. He received his M.S. degree in information and communication engineering from National University of Defense Technology,Changsha, China, in 2020. Now he is currently working toward to the Ph.D. degree in the Science and Technology on Automatic Target Recognition, National University of Defense Technology, Changsha, China.His current research interests includespace targets’surveillance and radar resource scheduling and allocation

    Peng Yang was born in 1992. He received his master degree in information and communication engineering from National University of Denfense Technology, Changsha,China,in 2016. He is currently an engineer at the Xi’an Satellite Measurement and Control Center,specializing in the field of radar imaging. E-mail: yp19921008@163.com

    WANG Zhuang was born in 1974. He received his Ph.D. degree in information and communication engineering from National University of Defense Technology,Changsha, China, in 2001. He is currently a professor in the School of Electronics Science and Engineering, National University of Defense Technology, Changsha, China. His current research interests include radar signal processing, space targets’ surveillance and target recognition. E-mail: zhuang_wang@sina.com

Abstract:

The conventional two dimensional (2D) inverse synthetic aperture radar (ISAR) imaging fails to provide the targets’ three dimensional (3D) information. In this paper, a 3D ISAR imaging method for the space target is proposed based on mutli-orbit observation data and an improved orthogonal matching pursuit (OMP) algorithm. Firstly, the 3D scattered field data is converted into a set of 2D matrix by stacking slices of the 3D data along the elevation direction dimension. Then, an improved OMP algorithm is applied to recover the space target’s amplitude information via the 2D matrix data. Finally, scattering centers can be reconstructed with specific three dimensional locations. Numerical simulations are provided to demonstrate the effectiveness and superiority of the proposed 3D imaging method.

Key words: three dimensional inverse synthetic aperture radar (3D ISAR) imaging, space target, improved orthogonal matching pursuit (OMP) algorithm, scattering centers