Stochastic nonlinear minimax dynamic games with noisy measurements
Date
1999Publisher
IEEESource
Proceedings of the IEEE Conference on Decision and ControlProceedings of the IEEE Conference on Decision and Control
Volume
5Pages
5044-5049Google Scholar check
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This paper is concerned with nonlinear stochastic minimax dynamic games which are subject to noisy measurements. The minimizing players are control inputs while the maximizing players are square-integrable stochastic processes. First, the minimax dynamic game is formulated using an information state, which satisfies a stochastic partial differential equation. Subsequently, a separation theorem is derived between the estimation and the control problems. Second, a certainty-equivalence principle is introduced along the lines of Whittle, by defining the future stress, the past stress, the minimum stress and the certainty-equivalence controller. Third, the separation theorem and the certainty-equivalence principle are applied to solve the linear-quadratic-Gaussian minimax game. The optimal control and the certainty-equivalence control are shown to be identical. The results of this paper generalize the L2-gain of deterministic systems to stochastic analogs; they are related to the controller design of stochastic risk-sensitive control and minimax deterministic dynamic games.
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