4.7 Article

Stabilizing Solution and Parameter Dependence of Modified Algebraic Riccati EquationWith Application to Discrete-Time Network Synchronization

Journal

IEEE TRANSACTIONS ON AUTOMATIC CONTROL
Volume 61, Issue 1, Pages 228-233

Publisher

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAC.2015.2434011

Keywords

Input saturation; parameter dependence; Riccati equation/inequality; stabilizing solution; synchronization

Funding

  1. National Natural Science Foundation of China [61374053, 61473129]
  2. Hong Kong University Committee on Research and Conference [201309176141]
  3. Research Grants Council, Hong Kong, through the General Research Fund [CityU 1120/14]

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This technical note deals with a modified algebraic Riccati equation (MARE) and its corresponding inequality and difference equation, which arise in modified optimal control and filtering problems and are introduced into the cooperative control problems recently. The stabilizing property of the solution to MARE is presented. Then, the uniqueness is proved for the almost stabilizing and positive semi-definite solution. Next, the parameter dependence of MARE is analyzed. An obtained parameter dependence result is finally applied to the study of semi-global synchronization of leader-following networks with discrete-time linear dynamics subject to actuator saturation.

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