Results 71 to 80 of about 9,324,290 (200)

Influence of Satellite Motion Control System Parameters on Performance of Space Debris Capturing

Aerospace, 2020
Relative motion control problem for capturing the tumbling space debris object is considered. Onboard thrusters and reaction wheels are used as actuators. The nonlinear coupled relative translational and rotational equations of motion are derived.
Mahdi Akhloumadi, Danil Ivanov
doaj   +1 more source

Approximate optimal control design for quadrotors: A computationally fast solution

Optimal Control Applications and Methods, Volume 45, Issue 1, Page 85-105, January/February 2024.
Optimal motion planning of the quadrotor is investigated by using the newly developed finite time Θ‐D technique, which can provide a closed‐form state‐feedback suboptimal control law and has significant online computational efficiency. Those attributes facilitate online implementation of autonomous systems.
Jie Yao, Saeed Rafee Nekoo, Ming Xin
wiley   +1 more source

Accurate voltage regulation for a DC microgrid using nonlinear state feedback controller

IET Generation, Transmission &Distribution, Volume 18, Issue 1, Page 63-78, January 2024.
In order to reach accurate voltage regulation among various distributed generation systems and maintain overall system stability, this paper studies the modelling and control of an islanded DC microgrid architecture described by a set of nonlinear‐nonaffine differential equations.
Mohammadreza Arabshahi, Younes Saeidinia, Hossein Torkaman   +2 more
wiley   +1 more source

Test Mass Capture Control for Drag-Free Satellite Based on State-Dependent Riccati Equation Method

Actuators
The drag-free satellite plays an important role in the space-based gravitational wave observatory. The capture control of test mass after release is a crucial technology that can affect the success of the mission.
Yingjie Chen, Yankai Wang, Ti Chen, Zhengtao Wei, Javad Tayebi   +4 more
doaj   +1 more source

SDRE Missile Guidance Law

, 2016
In this work, a state dependent Riccati equation (SDRE) missile guidance is formulated and studied. With the aid of a line of sight (LOS) fixed coordinate, the order of the system equations describing the three dimensional missile guidance problem is ...
Tyan, Feng; Shen, Jeng-fu
core   +1 more source

End Point Control of Nonlinear Flexible Manipulators With Control Constraint Using SDRE Method [PDF]

, 2002
The paper treats the question of end point regulation of multi-link light-weight manipulators using the state dependent Riccati equation (SDRE) method. It is assumed that each link is flexible and deforms when maneuvered.
Yim, Woosoon, Singh, Sahjendra N.
core   +2 more sources

Optimization of the Aedes aegypti Control Strategies for Integrated Vector Management

Journal of Applied Mathematics, 2015
We formulate an infinite-time quadratic functional minimization problem of Aedes aegypti mosquito population. Three techniques of mosquito population management, chemical insecticide control, sterile insect technique control, and environmental carrying ...
Marat Rafikov, Elvira Rafikova, Hyun Mo Yang   +2 more
doaj   +1 more source

CONTROL OF THE DOUBLE INVERTED PENDULUM ON A CART USING THE NATURAL MOTION

Acta Polytechnica, 2013
This paper deals with controlling the swing-up motion of the double pendulum on a cart using a novel control. The system control is based on finding a feasible trajectory connecting the equilibrium positions from which the eigenfrequencies of the system ...
Zdenek Neusser, Michael Valášek
doaj   +1 more source

Relative position control of a two-satellite formation using the SDRE control method

, 2014
The relative position and formation attitude control of a two-spacecraft utilizing coulomb forces as well as thrusters is addressed. The nonlinear control is realized through state dependent Riccati equation (SDRE) control method.
Gomroki, Mohammad Mehdi, Tekinalp, Ozan
core   +1 more source

Attitude Control of Nanosatellite Using Optimal Quadratic Linear and Nonlinear Methods [PDF]

فصلنامه علوم و فناوری فضایی
Linear algorithms are the most widely used method for satellite attitude control using reaction wheels because of their simplicity and low computational cost. The first part of the paper introduces different attitude determination and control algorithms,
Arash Abarghooei, Hassan Salarieh, Pedram Hosseiniakram   +2 more
doaj   +1 more source