Robust Time-Optimal Guidance in a Partially Uncertain Time-Varying Flow-Field
Robust Time-Optimal Guidance in a Partially Uncertain Time-Varying Flow-Field
复制标题
部分不确定时变流场中的鲁棒时间最优引导
DOI:
10.1007/s10957-018-1326-1
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发表时间:
2018
影响因子:
1.9
通讯作者:
Bakolas, Efstathios
中科院分区:
文献类型:
--
作者:
Selvakumar, Jhanani;Bakolas, Efstathios
In this paper, we address the problem of guiding an aerial or aquatic vehicle to a fixed target point in a partially uncertain flow-field. We assume that the motion of the vehicle is described by a point-mass linear kinematic model. In addition, the velocity of the flow-field, which is taken to be time varying, can be decomposed into two components: one which is known a priori and another one which is uncertain and only a bound on its magnitude is known. We show that the guidance problem can be reformulated as an equivalent pursuit evasion game with time-varying affine dynamics. To solve the latter game, we propose an extension of a specialized solution approach, which transforms the pursuit–evasion game (whose terminal time is free) via a special state transformation into a family of games with fixed terminal time. In addition, we provide a simple method to visualize the level sets of the value function of the game, along with the corresponding reachable sets. Furthermore, we compare our conservative game-theoretic solution with a pure optimal control solution, for the special case in which the flow-field is perfectly known a priori.
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DOI:
--
发表时间:
2015
期刊:
European Control Conference
影响因子:
--
作者:
Jhanani Selvakumar;E. Bakolas
通讯作者:
E. Bakolas
DOI:
--
发表时间:
1989
期刊:
影响因子:
--
作者:
Yiyuan J. Zhao;A. Bryson
通讯作者:
A. Bryson
DOI:
--
发表时间:
1986
期刊:
影响因子:
--
作者:
M. Pachter;Y. Yavin
通讯作者:
Y. Yavin
DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
E. Bakolas
通讯作者:
E. Bakolas
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
Ross P. Anderson;E. Bakolas;D. Milutinović;P. Tsiotras
通讯作者:
P. Tsiotras