Results 21 to 30 of about 5,002,744 (342)

Minimum-Fuel Ascent of Hypersonic Vehicle considering Control Constraint Using the Improved Pigeon-Inspired Optimization Algorithm

open access: yesInternational Journal of Aerospace Engineering, 2020
Trajectory optimization problem for hypersonic vehicles has long been recognized as a difficult problem. This paper brings control constraints into the trajectory optimization to make the optimal trajectory meet the requirements of control performance ...
Jiahao He   +3 more
doaj   +1 more source

Continuous Jumping for Legged Robots on Stepping Stones via Trajectory Optimization and Model Predictive Control [PDF]

open access: yesIEEE Conference on Decision and Control, 2022
Performing highly agile dynamic motions, such as jumping or running on uneven stepping stones has remained a challenging problem in legged robot locomotion.
Chuong H. Nguyen   +2 more
semanticscholar   +1 more source

Ball-End Cutting Tool Posture Optimization for Robot Surface Milling Considering Different Joint Load

open access: yesApplied Sciences, 2023
Robots with openness and flexibility have attracted a large number of researchers to conduct in-depth studies in the field of surface machining. However, there is a redundant degree of freedom (DOF) in 6-DOF robot machining: when a ball end milling ...
Xinyue Li   +5 more
doaj   +1 more source

Joint Scheduling and Trajectory Optimization of Charging UAV in Wireless Rechargeable Sensor Networks [PDF]

open access: yesIEEE Internet of Things Journal, 2022
Wireless rechargeable sensor networks with a charging unmanned aerial vehicle (CUAV) have broad application prospects in the power supply of the rechargeable sensor nodes (SNs).
Yanheng Liu   +5 more
semanticscholar   +1 more source

Multi-UAV Cooperative Trajectory Planning Based on Many-Objective Evolutionary Algorithm

open access: yesComplex System Modeling and Simulation, 2022
The trajectory planning of multiple unmanned aerial vehicles (UAVs) is the core of efficient UAV mission execution. Existing studies have mainly transformed this problem into a single-objective optimization problem using a single metric to evaluate multi-
Hui Bai, Tian Fan, Yuan Niu, Zhihua Cui
doaj   +1 more source

IRS Empowered UAV Wireless Communication with Resource Allocation, Reflecting Design and Trajectory Optimization

open access: yesIEEE Transactions on Wireless Communications, 2022
As revolutionary technologies that can actively change the communication link signal, intelligent reflecting surface (IRS) and unmanned aerial vehicle (UAV) have emerged as reliable, economical and convenient wireless communication solutions for a ...
Xiaoqi Zhang   +4 more
semanticscholar   +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

Trajectory Optimization and Resource Allocation for OFDMA UAV Relay Networks [PDF]

open access: yesIEEE Transactions on Wireless Communications, 2021
In this paper, we consider a single-cell multi-user orthogonal frequency division multiple access (OFDMA) network with one unmanned aerial vehicle (UAV), which works as an amplify-and-forward relay to improve the quality-of-service (QoS) of the user ...
Shuhao Zeng   +3 more
semanticscholar   +1 more source

Research on multi-objective optimization method for bullet full trajectory based on SA-PSO hybrid algorithm [PDF]

open access: yesZhihui kongzhi yu fangzhen
In the process of bullet design, the parameters of the interior trajectory, exterior trajectory, and terminal trajectory are interdependent, necessitating a comprehensive consideration of the entire trajectory process. To address both overall performance
HU Zhenchao, CUI Xiao, XU Xiao, LU Dabin, ZHANG Huisheng
doaj   +1 more source

A PSO-enhanced Gauss pseudospectral method to solve trajectory planning for autonomous underwater vehicles

open access: yesMathematical Biosciences and Engineering, 2023
A fast optimization method based on the Gauss pseudospectral method (GPM) and particle swarm optimization (PSO) is studied for trajectory optimization of obstacle-avoidance navigation of autonomous underwater vehicles (AUVs).
Wenyang Gan , Lixia Su , Zhenzhong Chu
doaj   +1 more source

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