Journal of Systems Engineering and Electronics ›› 2024, Vol. 35 ›› Issue (2): 275-285.doi: 10.23919/JSEE.2023.000127

• ELECTRONICS TECHNOLOGY • Previous Articles    

Fast measurement and prediction method for electromagnetic susceptibility of receiver

Yan CHEN1,2(), Zhonghao LU1,*(), Yunxia LIU2()   

  1. 1 State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System, College of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, China
    2 State Key Laboratory of Astronautic Dynamics, Xi’an 710043, China
  • Received:2021-07-30 Accepted:2023-08-01 Online:2024-04-18 Published:2024-04-18
  • Contact: Zhonghao LU E-mail:chenyancy@nudt.edu.cn;luzhonghao@nudt.edu.cn;lyxhello1209@126.com
  • About author:
    CHEN Yan was born in 1991. She received her B.S. degree in electronic information science and technology from the University of Electronic Science and Technology of China in 2015 and M.S. degree in electronic science and technology from the National University of Defense Technology (NUDT) in 2017. After that, she has been working as an aerospace engineer in the State Key Laboratory of Astronautic Dynamics, Xi’an, China. She is pursuing her Ph.D. degree in the State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System, NUDT, Changsha, China. Her research interests include complex detection equipment management, assessment, and resource scheduling. E-mail: chenyancy@nudt.edu.cn

    LU Zhonghao was born in 1983. He received his M.S. and Ph.D. degrees in electronic science and technology from National University of Defense Technology (NUDT), Changsha, China, in 2008 and 2013, respectively. He is an associate professor with NUDT. His current research interests include microwave devices design, antenna design, and electromagnetic compatibility testing. E-mail: luzhonghao@nudt.edu.cn

    LIU Yunxia was born in 1978. She received her B.S. and M.S. degrees in control theory and control engineering from Harbin Engineering University in 2003 and 2006, respectively. She worked as a design engineer in Jinan Worldwide Auto-Accessory Limited from 2006 to 2011. After that, she worked as an electrical design senior engineer in China National Petroleum Corporation Jichai Power Company Limited from 2011 to 2019. She is currently an aerospace engineer in State Key Laboratory of Astronautic Dynamics, Xi’an, China. Her research interests include radar performance evaluation and resource scheduling. E-mail: lyxhello1209@126.com
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (62071473).

Abstract:

Aiming at evaluating and predicting rapidly and accurately a high sensitivity receiver’s adaptability in complex electromagnetic environments, a novel testing and prediction method based on dual-channel multi-frequency is proposed to improve the traditional two-tone test. Firstly, two signal generators are used to generate signals at the radio frequency (RF) by frequency scanning, and then a rapid measurement at the intermediate frequency (IF) output port is carried out to obtain a huge amount of sample data for the subsequent analysis. Secondly, the IF output response data are modeled and analyzed to construct the linear and nonlinear response constraint equations in the frequency domain and prediction models in the power domain, which provide the theoretical criteria for interpreting and predicting electromagnetic susceptibility (EMS) of the receiver. An experiment performed on a radar receiver confirms the reliability of the method proposed in this paper. It shows that the interference of each harmonic frequency and each order to the receiver can be identified and predicted with the sensitivity model. Based on this, fast and comprehensive evaluation and prediction of the receiver’s EMS in complex environment can be efficiently realized.

Key words: electromagnetic susceptibility (EMS), receiver, dual-channel multi-frequency, nonlinear response, frequency domain, power domain