Results 41 to 50 of about 767 (162)

Optimal control based seizure abatement using patient derived connectivity

open access: yesFrontiers in Neuroscience, 2015
Epilepsy is a neurological disorder in which patients have recurrent seizures. Seizures occur in conjunction with abnormal electrical brain activity which can be recorded by the electroencephalogram (EEG).
Peter Neal Taylor   +6 more
doaj   +1 more source

Online Trajectory Optimization Method for Large Attitude Flip Vertical Landing of the Starship-like Vehicle

open access: yesMathematics, 2023
A high-precision online trajectory optimization method combining convex optimization and Radau pseudospectral method is presented for the large attitude flip vertical landing problem of a starship-like vehicle. During the landing process, the aerodynamic
Hongbo Chen   +3 more
doaj   +1 more source

Path Tracking of Autonomous Vehicle Based on Optimal Control

open access: yesWorld Electric Vehicle Journal
Path tracking control is a key technology in the research of intelligent vehicles. In the path tracking process of intelligent vehicles, there are multiple constraints and time-varying nonlinear system states.
Bingshuai Wu, Yingjie Liu, Qianqian Wang
doaj   +1 more source

The Stability of Pseudospectral-Chebyshev Methods. [PDF]

open access: yesMathematics of Computation, 1981
The stability of pseudospectral-Chebyshev methods is demonstrated for parabolic and hyperbolic problems with variable coefficients. The choice of collocation points is discussed. Numerical examples are given for the case of variable coefficient hyperbolic equations.
openaire   +3 more sources

Optimal Lane Changing Problem of Vehicle Handling Inverse Dynamics Based on Mesh Refinement Method

open access: yesIEEE Access, 2023
This paper proposes a new optimal control method to solve traffic accidents such as vehicle collisions during driver’s conscious lane changing under the dangerous state of highway driving and meet the requirements of safety and comfort during ...
Yingjie Liu, Dawei Cui, Wen Peng
doaj   +1 more source

Terminal Velocity Maximization of Air-to-Air Missiles in Agile Turn Phase

open access: yesMATEC Web of Conferences, 2016
Terminal velocity maximization of air-to-air agile missiles during agile turn phase is studied. It is important to make sure that agile missiles have enough velocity after agile turn stage in order to impact the target.
Kim Min Ki   +3 more
doaj   +1 more source

RBCC Mid-section Combined Trajectory Optimization Method Based on Particle Swarm-Pseudospectral Convex Optimization [PDF]

open access: yesHangkong bingqi
In order to solve the problem of combined trajectory optimization of RBCC mid-section, a nested optimization method based on particle swarm-pseudospectral convex optimization is proposed.
Yang Yuxuan, Fei Wanghua, Liu Haili, Wang Peichen, Yan Xunliang
doaj   +1 more source

On mechanical aspects of nerve pulse propagation and the Boussinesq paradigm; pp. 331–337 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2015
The dynamic behaviour of the Boussinesq-type equation governing longitudinal wave propagation in cylindrical biomembranes is analysed by making use of the pseudospectral method. It is shown how the dispersion type has a significant effect on the solution.
Tanel Peets, Kert Tamm
doaj   +1 more source

PSEUDOSPECTRAL APPROXIMATION COMPARED WITH CONTROL VOLUME FORMULATION AND FINITE DIFFERENCES - SOME TEST CASES

open access: yesTASK Quarterly, 2000
The paper presents comparison of the pseudospectral method with low-order approximation for two test cases. The first test case is quasi one-dimensional supersonic flow through convergingdiverging nozzle for which exact solution exists.
ARTUR TYLISZCZAK, ANDRZEJ BOGUSŁAWSKI
doaj  

Design of an Online Nonlinear Optimal Tracking Control Method for Unmanned Ground Systems

open access: yesIEEE Access, 2018
A nonlinear tracking error model for unmanned ground systems (UGS) was developed, and the constraints and objective function were established; the tracking control problem for UGS was converted to a continuous nonlinear optimal control problem.
Jie Liu   +4 more
doaj   +1 more source

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