Results 11 to 20 of about 20,428,698 (185)

Robust INS/GPS sensor fusion for UAV localization using SDRE nonlinear filtering [PDF]

open access: yes, 2009
For publication in IEEE Sensors JournalThe aim of this paper is to present a new INS/GPS sensor fusion scheme, based on State-Dependent Riccati Equation (SDRE) nonlinear filtering, for Unmanned Aerial Vehicle (UAV) localization problem.
Aouf, Nabil, Nemra, A.
core   +8 more sources

State dependent NGMV control of delayed piecewise affine systems [PDF]

open access: yes, 2009
A Nonlinear Generalized Minimum Variance (NGMV) control algorithm is introduced for the control of delayed piecewise affine (PWA) systems which are an important subclass of hybrid systems.
Grimble, M.J.   +5 more
core   +4 more sources

Numerical Solution of SDRE Control Problem – Comparison of the Selected Methods

open access: yesFoundations of Computing and Decision Sciences, 2020
Methods for solving non-linear control systems are still being developed. For many industrial devices and systems, quick and accurate regulators are investigated and required.
Hałas Krzysztof   +3 more
doaj   +1 more source

Exponential stability region estimates for the State-Dependent Riccati Equation controllers [PDF]

open access: yesProceedings of the 48h IEEE Conference on Decision and Control (CDC) held jointly with 2009 28th Chinese Control Conference, 2009
We investigate the nonlinear exponential stability of the State-Dependent Riccati Equation (SDRE)-based control. The SDRE technique is a nonlinear control method, which has emerged since the mid 1990's and has been applied to a wide range of nonlinear control problems.
Insu Chang, Soon-Jo Chung
openaire   +2 more sources

Characterization of solutions of the discrete-time algebraic Riccati equation based on quadratic difference forms [PDF]

open access: yes, 2006
This paper is concerned with a characterization of all symmetric solutions to the discrete-time algebraic Riccati equation (DARE). Dissipation theory and quadratic difference forms from the behavioral approach play a central role in this paper. Along the
Kojima, Chiaki   +3 more
core   +2 more sources

On solving periodic Riccati equations [PDF]

open access: yes, 2008
Numerically reliable algorithms to compute the periodic non-negative definite stabilizing solutions of the periodic differential Riccati equation (PRDE) and discrete-time periodic Riccati equation (DPRE) are proposed. For the numerical solution of PRDEs,
A. Varga, Varga, Andreas
core   +1 more source

Pick matrix conditions for sign-definite solutions of the algebraic Riccati equation [PDF]

open access: yes, 2001
We study the existence of positive and negative semidefinite solutions of algebraic Riccati equations (ARE) corresponding to linear quadratic problems with an indefinite cost functional.
Trentelman, Harry L., Rapisarda, Paolo
core   +3 more sources

On solving discrete-time periodic Riccati equations [PDF]

open access: yes, 2005
Two numerically reliable algorithms to compute the periodic nonnegative definite stabilizing solution ofdiscrete-time periodic Riccati equations are proposed.
A. Varga, Varga, Andras
core   +1 more source

Optimal cooperative control for formation flying spacecraft with collision avoidance

open access: yesScience Progress, 2020
This article investigates optimal cooperative control algorithms for spacecraft formation flying system that can guarantee collision avoidance between spacecrafts. By selecting potential functions to avoid collisions and constructing index cost functions
Xiaohan Lin, Xiaoping Shi, Shilun Li
doaj   +1 more source

Nonlinear state-dependent Riccati equation control of a quadrotor UAV [PDF]

open access: yes2006 IEEE Conference on Computer Aided Control System Design, 2006 IEEE International Conference on Control Applications, 2006 IEEE International Symposium on Intelligent Control, 2006
Small quadrotor UAVs represent a very interesting class of small flying robots because of their ability to fly in- and outdoor. Therefore, these vehicles have an enormous potential for near-area surveillance and exploration. However, especially indoor flight is a difficult task for vehicle control which has to stabilize the desired velocity vector and ...
openaire   +2 more sources

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