نتایج جستجو برای: الگوریتم lqr

تعداد نتایج: 23567  

Journal: :Automatica 2011
Ravi Gondhalekar Colin Neil Jones

State-feedback model predictive control (MPC) of discrete-time linear periodic systems with timedependent state and input dimensions is considered. The states and inputs are subject to periodically time-dependent, hard, convex, polyhedral constraints. First, periodic controlled and positively invariant sets are characterized, and a method to determine the maximum periodic controlled and positiv...

2015
Guilherme Aschauer Martin Kozek

The paper outlines the development of a co-simulation solution of Matlab and FlightGear in which the communication between these programs is done via UDP without needing further toolsets. The simulation and rendering is done by FlightGear. Flight measurement signals are sent to Matlab, which in turn sends back actuator input values computed by a flight control system. First, gray-box models of ...

2016
Adnan Jafar Syed Fasih-UR-Rehman Syed Fazal-UR-Rehman Nisar Ahmed Ghulam Ishaq Khan

Unmanned aerial vehicle experience different atmospheric uncertainties during their flight. These uncertainties caused the problem in the stability and the desired performance of the system. This research paper structured to nullify the influence of atmospheric turbulence and ground effect on the UAV. The models of Dryden turbulence is used as it is one of the major disturbances affecting the U...

2013
M. Salem M. A. Ashtiani S. H. Sadati

Progress in aircraft designs heavily depend on Automatic Flight Control System (AFCS). In this work a fuzzy sliding mode controller is designed as a supervisory controller in aircraft pitch control systems and different control strategies to model a pitch controller based on design a pitch angle control in autopilot are invistigated. A performance evaluation based on time response specification...

Journal: :Automatica 2009
Wei Zhang Alessandro Abate Jianghai Hu Michael P. Vitus

This paper studies the exponential stabilization problem for discrete-time switched linear systems based on a control-Lyapunov function approach. It is proved that a switched linear system is exponentially stabilizable if and only if there exists a piecewise quadratic control-Lyapunov function. Such a converse control-Lyapunov function theorem justifies many of the earlier synthesis methods tha...

Journal: :Actuators 2022

In this paper, the seven degrees of freedom (DOF) nonlinear system model articulated vehicles, including vehicle dynamics model, tire and hydraulic steering linearized ideal reference is constructed. A layered stability controller for built. The particle swarm optimization (PSO)-based variable parameter linear quadratic regulator (LQR) upper-level yaw torque lower-level distributor based on pri...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده فنی مهندسی 1389

در این تحقیق مدل دینامیکی ماهواره مجهز به ژیروسکوپهای ممان کنترل و صفحات خورشیدی انعطاف پذیر ارائه شده است. در مدل ارائه شده تعداد، موقعیت و راستای محور گیمبالها به صورت دلخواه انتخاب شده و علاوه بر اینرسی روتورها، اینرسی گیمبالها نیز لحاظ شده است. همچنین یک مدل جدید از صفحات خورشیدی برای حرکتهای سه بعدی پیشنهاد و با مدلهای موجود مقایسه شده است. در مدل پیشنهادی هر صفحه خورشیدی به صورت صلب فرض ش...

Journal: :Journal of Institute of Control, Robotics and Systems 2014

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