Journal of Systems Engineering and Electronics ›› 2022, Vol. 33 ›› Issue (5): 1089-1094.doi: 10.23919/JSEE.2022.000106

• DEFENCE ELECTRONICS TECHNOLOGY • Previous Articles     Next Articles

Modified OMP method for multi-target parameter estimation in frequency-agile distributed MIMO radar

Wenge XING1,*(), Chuanrui ZHOU2(), Chunlei WANG2()   

  1. 1 College of Information Science and Engineering, Southeast University, Nanjing 211189, China
    2 Nanjing Research Institute of Electronics Technology, Nanjing 210039, China
  • Received:2022-06-24 Accepted:2022-08-19 Online:2022-10-27 Published:2022-10-27
  • Contact: Wenge XING E-mail:whesly5287@163.com;zhouchuanrui@163.com;wangchunlei41@foxmail.com
  • About author:|XING Wenge was born in 1965. He received his M.S. degree from Nanjing Research Institute of Electronics Technology. He is currently working toward his Ph.D. degree in Southeast University. His research interests include radar system and radar signal processing. E-mail: whesly5287@163.com||ZHOU Chuanrui was born in 1985. He received his M.S. degree from Nanjing Research Institute of Electronics Technology in communication and information systems. He is currently working toward his Ph.D. degree in Southeast University. His research interests include radar system and radar signal processing. E-mail: zhouchuanrui@163.com||WANG Chunlei was born in 1995. She received her Ph.D. degree in information and communication engineering from Xidian University in 2021. Her research interests include radar signal processing and deep learning. E-mail: wangchunlei41@foxmail.com

Abstract:

Introducing frequency agility into a distributed multiple-input multiple-output (MIMO) radar can significantly enhance its anti-jamming ability. However, it would cause the sidelobe pedestal problem in multi-target parameter estimation. Sparse recovery is an effective way to address this problem, but it cannot be directly utilized for multi-target parameter estimation in frequency-agile distributed MIMO radars due to spatial diversity. In this paper, we propose an algorithm for multi-target parameter estimation according to the signal model of frequency-agile distributed MIMO radars, by modifying the orthogonal matching pursuit (OMP) algorithm. The effectiveness of the proposed method is then verified by simulation results.

Key words: distributed multiple-input multiple-output (MIMO) radar, multi-target parameter estimation, frequency agility, modified orthogonal matching pursuit (OMP) method