Journal of Systems Engineering and Electronics ›› 2023, Vol. 34 ›› Issue (2): 342-349.doi: 10.23919/JSEE.2023.000043

• DEFENCE ELECTRONICS TECHNOLOGY • Previous Articles    

Polarization characteristics and controllability mechanism of passive scattering elements

Jie GUO1,2,*(), Hongcheng YIN1,2(), Liang MAN1,2(), Xin LI2()   

  1. 1 Science and Technology on Electromagnetic Scattering Laboratory, Beijing 100854, China
    2 Beijing Institute of Environmental Features, Beijing 100854, China
  • Received:2021-07-22 Online:2023-04-18 Published:2023-04-18
  • Contact: Jie GUO E-mail:guojie207@163.com;yinhc207@126.com;manliang89@163.com;1094984086@qq.com
  • About author:
    GUO Jie was born in 1981. He received his M.S. and Ph.D. degrees from the Graduate School of the Second Academy of CASIC, in 2006 and 2009, respectively. He is a senior engineer in the Science and Technology on Electromagnetic Scattering Laboratory. His research interests are radar target characteristics and radar feature simulation. E-mail: guojie207@163.com

    YIN Hongcheng was born in 1967. He received his B.S. degree in electromagnetic field and microwave technique from the Northwest Telecommunication Engineering Institute, Xi’an, China, in 1986, M.S. degree in electromagnetic field and microwave technique from the Science and Technology on Electromagnetic Scattering Laboratory, Beijing, China, in 1989, and Ph.D. degree in electromagnetic field and microwave technique from Southeast University, Nanjing, China, in 1993. He is a research scientist in the Science and Technology on Electromagnetic Scattering Laboratory. His research interests are radar target characteristics and recognition. E-mail: yinhc207@126.com

    MAN Liang was born in 1989. He received his B.S. degree in communication engineering from Wuhan University, Wuhan, China, in 2010, M.S. and Ph.D. degrees in control science and engineering from the Science and Technology on Electromagnetic Scattering Laboratory, Beijing, China, in 2013 and 2022, respectively. He is an engineer in the Science and Technology on Electromagnetic Scattering Laboratory. His research interest is radar target characteristics. E-mail: manliang89@163.com

    LI Xinwas born in 1995. He received his B.S. degree from the School of Information and Communication Engineering, North University of China in 2019. He is an engineer in the Science and Technology on Electromagnetic Scattering Laboratory. His research interest is radar feature simulation. E-mail: 1094984086@qq.com
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (11927803; A020414).

Abstract:

Polarization feature is one of the important features of radar targets, which has been used in many fields. In this paper, the grid models of some typical foreign moving targets are constructed on the simulation platform, such as glider, cruiser, fixed wing aircraft, and rotorcraft. The electromagnetic scattering characteristics of the moving platforms under the incidence of circular polarization waves are calculated. The typical polarization characteristics which the orthogonal and in-phase components have in the echoes are analyzed and proved. Based on the polarization scattering matrix (PSM) theory, from the point of view of the physical reproduction, the technical status quo that the existing technical approaches are difficult to realize the passive simulation of polarization characteristic of the target is summarized. To solve this problem, combined with the vector synthesis law, the realization mechanism of controllable polarization characteristic of target echoes is proposed, the analytical expressions of polarization control matrix and polarization ratio are deduced, and the controllability of polarization ratio feature in the case of circular polarization is verified by simulation calculation.

Key words: polarization characteristic, physical reproduction, passive scattering element, controllability mechanism, radar feature simulation