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arXiv 1602.08995math.OC
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随机线性二次控制问题最优反馈的特征

Characterization of Optimal Feedback for Stochastic Linear Quadratic Control Problems

Qi Lu, Tianxiao Wang, Xu Zhang

摘要:

控制理论的基本问题之一是设计反馈控制。众所周知,在确定性情形下引入Riccati方程的目的是为线性二次控制问题提供所需的反馈控制。到目前为止,在随机设置中的相同的问题只是部分很好地理解。本文建立了随机系数线性二次控制问题的最优反馈控制的存在性与相应的倒向随机Riccati方程在适当意义下的可解性之间的等价性。我们还给出了一个反例,表明可解随机线性二次控制问题不存在反馈控制。这是随机环境中的一种新现象,与确定性环境有着显著的不同。

英文摘要:

One of the fundamental issues in Control Theory is to design feedback controls. It is well-known that, the purpose of introducing Riccati equations in the deterministic case is to provide the desired feedback controls for linear quadratic control problems. To date, the same problem in the stochastic setting is only partially well-understood. In this paper, we establish the equivalence between the existence of optimal feedback controls for the stochastic linear quadratic control problems with random coefficients and the solvability of the corresponding backward stochastic Riccati equations in a suitable sense. We also give a counterexample showing the nonexistence of feedback controls to a solvable stochastic linear quadratic control problem. This is a new phenomenon in the stochastic setting, significantly different from its deterministic counterpart.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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