期刊
SIGNAL PROCESSING
卷 192, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.sigpro.2021.108374
关键词
Multi-target tracking; Phased array radar; Time management
资金
- National Natural Science Foundation of China [61771110, U19B2017]
- Fundamental Research Funds of Central Universities [ZYGX2020ZB029]
- Chang Jiang Scholars Program
- 111 Project [B17008]
This paper presents a joint tracking sequence and dwell time allocation strategy for multi-target tracking based on phased array radars, considering interleaved target tracking and searching and using a time-aware posterior Cramer-Rao lower bound to quantify tracking performance.
Phased array radars (PAR) are demonstrated to provide enhanced performance for target tracking due to their agile beamforming. In this paper, a joint tracking sequence and dwell time allocation (JTSDTA) strategy is proposed for multi-target tracking (MTT) based on a PAR system. At its core, for the first time, the implementations of target tracking and searching are considered to be interleaved, and the effect of the revisit time on the tracking performance is emerged when arranging the sequence of target tracking. In this context, a time-aware posterior Cramer-Rao lower bound is presented to quantify the individual tracking performance. Then, the JTSDTA is formulated as an optimization problem with respect to the coupled integer and continuous variables. A two steps-based decoupling algorithm is proposed to solve the problem efficiently. Numerical simulations are presented to demonstrate the validity of the proposed JTSDTA strategy. (c) 2021 Elsevier B.V. All rights reserved.
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