A separation theorem for stochastic singular linear quadratic control problem with partial information

  • Hong-ji Ma
  • Ting Hou


In this paper, we provide a separation theorem for the singular linear quadratic (LQ) control problem of Itô-type linear systems in the case of the state being partially observable. Above all, the Kalman-Bucy filtering of the dynamics is given by means of Girsanov transformation, by which the suboptimal feedback control of the LQ problem is determined. Furthermore, it is shown that the well-posedness of the LQ problem is equivalent to the solvability of a generalized differential Riccati equation (GDRE).


singular optimal control Kalman-Bucy filtering separation theorem linear systems generalized differential Riccati equation 

2000 MR Subject Classification



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Copyright information

© Institute of Applied Mathematics, Academy of Mathematics and System Sciences, Chinese Academy of Sciences and Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.College of ScienceShandong University of Science and TechnologyShandongChina
  2. 2.Department of Systems and ControlBeijing University of Aeronautics and AstronauticsBeijingChina

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