Journal of Systems Engineering and Electronics ›› 2018, Vol. 29 ›› Issue (1): 48-57.doi: 10.21629/JSEE.2018.01.05

• Defence Electronics Technology • Previous Articles     Next Articles

Waveform design for radar and extended target in the environment of electronic warfare

Yuxi WANG1,*(), Guoce HUANG1(), Wei LI1,2()   

  1. 1 Information and Navigation College, Air Force Engineering University, Xi'an 710077, China
    2 Collaborative Innovation Center of Information Sensing and Understanding, Xidian University, Xi'an 710071, China
  • Received:2016-06-07 Online:2018-02-26 Published:2018-02-23
  • Contact: Yuxi WANG E-mail:WYX10013@163.com;huangguoce@163.com;liweichangsha@gmail.com
  • About author:WANG Yuxi was born in 1989. He is a Ph.D. student in the Information and Navigation College, Air Force Engineering University. His research interests include MIMO radar waveform design and beamforming. E-mail: WYX10013@163.com|HUANG Guoce was born in 1962. He received his M.S. degree from Xidian University. He is a doctoral supervisor and processor of the Information and Navigation College, Air Force Engineering University. His research interests include signal processing and wireless communication. E-mail: huangguoce@163.com|LI Wei was born in 1978. He received his Ph.D. degree from National University of Defense Technology. He is in the Information and Navigation College, Air Force Engineering University and the Collaborative Innovation Center of Information Sensing and Understanding, Xidian University. His research interests include new radar system and technology, electronic warfare. E-mail: liweichangsha@gmail.com
  • Supported by:
    the National Natural Science Foundation of China(61302153);the Aeronautical Science Foundation of China(20160196001);This work was supported by the National Natural Science Foundation of China (61302153) and the Aeronautical Science Foundation of China (20160196001)

Abstract:

Transmit waveform optimization is critical to radar system performance. There have been a fruit of achievements about waveform design in recent years. However, most of the existing methods are based on the assumption that radar is smart and the target is dumb, which is not always reasonable in the modern electronic warfare. This paper focuses on the waveform design for radar and the extended target in the environment of electronic warfare. Three different countermeasure models between smart radar and dumb target, smart target and dumb radar, smart radar and smart target are proposed. Taking the signal-to-interferenceplus-noise ratio (SINR) as the metric, optimized waveforms for the first two scenarios are achieved by the general water-filling method in the presence of clutter. For the last case, the equilibrium between smart radar and smart target in the presence of clutter is given mathematically and the optimized solution is achieved through a novel two-step water-filling method on the basis of minmax theory. Simulation results under different power constraints show the power allocation strategies of radar and target and the output SINRs are analyzed.

Key words: waveform design, extended target, electronic warfare, clutter, water-filling method