Journal of Systems Engineering and Electronics ›› 2018, Vol. 29 ›› Issue (5): 937-946.doi: 10.21629/JSEE.2018.05.06

• Defence Electronics Technology • Previous Articles     Next Articles

Variable scheduling interval task scheduling for phased array radar

Haowei ZHANG1,*(), Junwei XIE1(), Zhaojian ZHANG2(), Lei SHAO1(), Tangjun CHEN3()   

  1. 1 Air and Missile Defense College, Air Force Engineering University, Xi'an 710051, China
    2 Air Force Early Warning Academy, Wuhan 410039, China
    3 Unit 94921 of the PLA, Jinjiang 362200, China
  • Received:2017-04-17 Online:2018-10-26 Published:2018-11-14
  • Contact: Haowei ZHANG E-mail:zhw_xhzf@163.com;xjw_xjw_123@163.com;zzj554038@163.com;shaoleijing@126.com;ctj3959@126.com
  • About author:ZHANG Haowei was born in 1992. He received his bachelor and master degrees from the Air and Missile Defense College, Air Force Engineering University in 2014 and 2016, respectively. He is currently a doctoral student in the Air and Missile Defense College. His research interests include multifunction radar resource management and intelligent scheduling. E-mail: zhw_xhzf@163.com|XIE Junwei was born in 1970. He received his bachelor, master, and doctor degrees from the Air and Missile Defense College, Air Force Engineering University in 1993, 1996 and 2009, respectively. He is currently a professor in the Air and Missile Defense College. His research interests include novel radar systems as well as jamming and anti-jamming. E-mail: xjw_xjw_123@163.com|ZHANG Zhaojian was born in 1989. He received his bachelor, master and doctor degrees from Air and Missile Defense College, Air Force Engineering University in 2011, 2013 and 2017, respectively. He is currently a lecturer in the Air Force Early Warning Academy. His research interest is radar signal processing. E-mail: zzj554038@163.com|SHAO Lei was born in 1982. He received his bachelor, master, and doctor degrees from Air and Missile Defense College, Air Force Engineering University in 2001, 2003, and 2007, respectively. He is an associate professor in Air and Missile Defense College. His research interest is model generation of reentry aircraft. E-mail: shaoleijing@126.com|CHEN Tangjun was born in 1983. He received his bachelor and master degrees from Air and Missile Defense College, Air Force Engineering University in 2004 and 2016, respectively. He is currently an engineer in Unit 94921 of the PLA. His interest is radar engineering. E-mail: ctj3959@126.com
  • Supported by:
    the National Youth Foundation(61503408);This work was supported by the National Youth Foundation (61503408)

Abstract:

A scheduling algorithm is presented aiming at the task scheduling problem in the phased array radar. Rather than assuming the scheduling interval (SI) time, which is the update interval of the radar invoking the scheduling algorithm, to be a fixed value, it is modeled as a fuzzy set to improve the scheduling flexibility. The scheduling algorithm exploits the fuzzy set model in order to intelligently adjust the SI time. The idle time in other SIs is provided for SIs which will be overload. Thereby more request tasks can be accommodated. The simulation results show that the proposed algorithm improves the successful scheduling ratio by 16%, the threat ratio of execution by 16% and the time utilization ratio by 15% compared with the highest task mode priority first (HPF) algorithm.

Key words: phased array radar, task scheduling, variable scheduling interval (SI), fuzzy set