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On nearly optimal controls of hybrid LQG problems

机译:关于混合LQG问题的几乎最优控制

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摘要

The paper is concerned with hybrid control of a class of linear quadratic Gaussian (LQG) systems modulated by a finite-state Markov chain. It develops approximation schemes for systems involving singularly perturbed Markov chains with weak and strong interactions, which are useful for natural time-scale separation and for large-scale Markovian systems. The presentation encompasses three cases: the recurrent Markov chains, inclusion of transient states, and inclusion of absorbing states. Near optimality of the approximation schemes is obtained, and a numerical example is presented. Computational results indicate our approximation schemes perform well.
机译:本文涉及由有限状态马尔可夫链调制的一类线性二次高斯(LQG)系统的混合控制。它为包含具有弱相互作用和强相互作用的奇摄动马尔可夫链的系统开发了近似方案,这对于自然时间尺度分离和大规模马尔可夫体系很有用。演示包括三种情况:循环马尔可夫链,包含瞬态和包含吸收态。得到了近似方案的近最优性,并给出了数值例子。计算结果表明我们的近似方案表现良好。

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