Results 21 to 30 of about 54,794 (263)

Development and Implementation of a Mission Data-Handling Algorithm for an Automatic Flight Guidance System

open access: yesAerospace
This paper presents a mission data-handling algorithm that provides a data link interface between a flight control computer (FCC) and a ground control station (GCS) using the protocol standard STANAG 4586, AEP-84 Volume II.
Dominik Heimsch   +5 more
doaj   +1 more source

Recursive Differential Evolution Algorithm for Inertia Parameter Identification of Space Manipulator

open access: yesInternational Journal of Advanced Robotic Systems, 2016
This paper proposes a recursive differential evolution (RDE) algorithm to identify the inertial parameters of an unknown target and simultaneously revise the friction parameters of space manipulator joints.
Zhengxiong Liu, Panfeng Huang, Zhenyu Lu
doaj   +1 more source

Multitask-Based Trajectory Planning for Redundant Space Robotics Using Improved Genetic Algorithm

open access: yesApplied Sciences, 2019
This work addresses the multitask-based trajectory-planning problem (MTTP) for space robotics, which is an emerging application of successively executing tasks in assembly of the International Space Station.
Suping Zhao, Zhanxia Zhu, Jianjun Luo
doaj   +1 more source

High-Order Disturbance Observer-Based Neural Adaptive Control for Space Unmanned Systems With Stochastic and High-Dynamic Uncertainties

open access: yesIEEE Access, 2021
In this paper, a high order disturbance observer based stochastic adaptive anti-disturbance control algorithm has been designed for the space unmanned systems (SUSs) with high dynamic disturbances and stochastic uncertainties.
Yao Zhang   +3 more
doaj   +1 more source

Efficient adaptive constrained control with time-varying predefined performance for a hypersonic flight vehicle

open access: yesInternational Journal of Advanced Robotic Systems, 2017
A novel low-complexity adaptive control method, capable of guaranteeing the transient and steady-state tracking performance in the presence of unknown nonlinearities and actuator saturation, is investigated for the longitudinal dynamics of a generic ...
Caisheng Wei   +4 more
doaj   +1 more source

Modeling of Stochastic Wind Based on Operational Flight Data Using Karhunen–Loève Expansion Method

open access: yesSensors, 2020
Wind has a significant influence on the operational flight safety. To quantify the influence of the wind characteristics, a wind series generator is required in simulations.
Xiaolong Wang   +3 more
doaj   +1 more source

An Innovative Priority-Aware Mission Planning Framework for an Agile Earth Observation Satellite

open access: yesAerospace
Earth observation satellites, particularly agile Earth observation satellites (AEOSs) with enhanced attitude maneuverability, have become increasingly crucial in emergency response and disaster monitoring operations.
Guangtong Zhu   +4 more
doaj   +1 more source

Optimal Trajectory Planning and Coordinated Tracking Control Method of Tethered Space Robot Based on Velocity Impulse

open access: yesInternational Journal of Advanced Robotic Systems, 2014
The tethered space robot (TSR) is a new concept of space robot which consists of a robot platform, space tether and operation robot. This paper presents a multi-objective optimal trajectory planning and a coordinated tracking control scheme for TSR based
Panfeng Huang, Xiudong Xu, Zhongjie Meng
doaj   +1 more source

An Adaptive Command Scaling Method for Incremental Flight Control Allocation

open access: yesActuators
Modern aircraft usually employ control allocation to distribute virtual control commands among redundant effectors. Infeasible virtual command can occur frequently due to aggressive maneuvers and limited control authority.
Zhidong Lu   +3 more
doaj   +1 more source

Situational Awareness and Problems of Its Formation in the Tasks of UAV Behavior Control

open access: yesApplied Sciences, 2021
Situational awareness formation is one of the most critical elements in solving the problem of UAV behavior control. It aims to provide information support for UAV behavior control according to its objectives and tasks to be completed.
Dmitry M. Igonin   +2 more
doaj   +1 more source

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