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CLC number: TP13

On-line Access: 2014-04-10

Received: 2013-10-14

Revision Accepted: 2014-01-07

Crosschecked: 2014-03-17

Cited: 0

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Citations:  Bibtex RefMan EndNote GB/T7714

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Journal of Zhejiang University SCIENCE C 2014 Vol.15 No.4 P.284-292


Coordinated standoff tracking of moving targets using differential geometry

Author(s):  Zhi-qiang Song, Hua-xiong Li, Chun-lin Chen, Xian-zhong Zhou, Feng Xu

Affiliation(s):  Department of Control and System Engineering, School of Management and Engineering, Nanjing University, Nanjing 210093, China; more

Corresponding email(s):   huaxiongli@nju.edu.cn

Key Words:  Unmanned aircraft, Standoff tracking, Differential geometry, Coordinated control

Zhi-qiang Song, Hua-xiong Li, Chun-lin Chen, Xian-zhong Zhou, Feng Xu. Coordinated standoff tracking of moving targets using differential geometry[J]. Journal of Zhejiang University Science C, 2014, 15(4): 284-292.

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%DOI 10.1631/jzus.C1300287

T1 - Coordinated standoff tracking of moving targets using differential geometry
A1 - Zhi-qiang Song
A1 - Hua-xiong Li
A1 - Chun-lin Chen
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A1 - Feng Xu
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.C1300287

This research is concerned with coordinated standoff tracking, and a guidance law against a moving target is proposed by using differential geometry. We first present the geometry between the unmanned aircraft (UA) and the target to obtain the convergent solution of standoff tracking when the speed ratio of the UA to the target is larger than one. Then, the convergent solution is used to guide the UA onto the standoff tracking geometry. We propose an improved guidance law by adding a derivative term to the relevant algorithm. To keep the phase angle difference of multiple UAs, we add a second derivative term to the relevant control law. Simulations are done to demonstrate the feasibility and performance of the proposed approach. The proposed algorithm can achieve coordinated control of multiple UAs with its simplicity and stability in terms of the standoff distance and phase angle difference.




Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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