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Vol. 158, Issue 11, November 2013, pp. 312-318




Stabilization and Performance Analysis for Networked Flight Control System with Random Time Delays
via a LMI Gridding Approach
Yanpeng WU, Xinmin WANG, Ying WU

Department of Automation, Northwestern Polytechnical University, Xi'an 710129, PR China
Tel.: 08618691862556, fax: 08602985494026
E-mail: wu.yanpeng123@gmail.com


Received: 9 September 2013   /Accepted: 25 October 2013   /Published: 30 November 2013

Digital Sensors and Sensor Sysstems


Abstract: The use of avionics networks for flight control system results in a reduced aircraft weight, system installation, integration and maintenance costs as well as an improved airborne system performance and flexibility. This paper studies the stability and control design problems with performance analysis for networked flight control systems (NFCS) with random time delays by modeling NFCS as a discrete-time switched linear system. Sufficient conditions are given for asymptotical stability and exponential stability of proposed NCS model and state feedback controller is designed via linear matrix inequality (LMI) approach. The bound of decay rate of the system is obtained by solving a LMI optimization problem. Gridding approach is introduced to guarantee the feasibility of proposed LMIs. Illustrative examples are presented to demonstrate the effectiveness of the proposed method and control performance with decay rate is analyzed based on the simulation results.


Keywords: Networked flight control systems (NFCS), Linear matrix inequality (LMI), Time delay, Switched system, Decay rate.


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