Results 21 to 30 of about 97,833 (315)

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

Optimal Trajectories for Hypervelocity Flight [PDF]

open access: yes1989 American Control Conference, 1989
This paper discusses optimal trajectories for hypervelocity flight of interest in aeroassisted orbital transfer. Both coplanar orbital transfer and noncoplanar orbital transfer are studied. For these cases, the GEO- to-LEO transfer, the HEO-to-LEO transfer, and the LEO-to-LEO transfer are considered in connection with a spacecraft which is controlled ...
Miele, A., Lee, W. Y.
openaire   +2 more sources

Trajectory Optimization and Power Allocation for Cell-Free Satellite-UAV Internet of Things

open access: yesIEEE Access, 2023
Massive access outside the coverage of terrestrial cellular networks will be the main feature of the sixth generation (6G) networks. In order to cope with it, the cognitive satellite-UAV network (CSUN) has drawn a lot of attentions.
Zhao Wu, Qiang Wang
doaj   +1 more source

Automated multigravity assist trajectory planning with a modified ant colony algorithm [PDF]

open access: yes, 2010
The paper presents an approach to transcribe a multigravity assist trajectory design problem into an integrated planning and scheduling problem. A modified Ant Colony Optimization (ACO) algorithm is then used to generate optimal plans corresponding to ...
Vasile, M.   +3 more
core   +1 more source

Optimizing Vessel Trajectory Compression [PDF]

open access: yes2020 21st IEEE International Conference on Mobile Data Management (MDM), 2020
In previous work we introduced a trajectory detection module that can provide summarized representations of vessel trajectories by consuming AIS positional messages online. This methodology can provide reliable trajectory synopses with little deviations from the original course by discarding at least 70% of the raw data as redundant.
Fikioris, Giannis   +2 more
openaire   +3 more sources

MGA trajectory planning with an ACO-inspired algorithm [PDF]

open access: yes, 2009
Given a set of celestial bodies, the problem of finding an optimal sequence of gravity assist manoeuvres, deep space manoeuvres (DSM) and transfer arcs connecting two or more bodies in the set is combinatorial in nature.
Vasile, M., Ceriotti, M.
core   +1 more source

Optimization Control of Cooperative Trajectory towards Dual Arms Based on Time-Varying Constrained Output State

open access: yesComplexity, 2021
Aiming at the impact and disturbance of dual-arm robots in the process of coordinated transportation, a dual-arm cooperative trajectory optimization control based on time-varying constrained output state is proposed.
Hui Zhang   +3 more
doaj   +1 more source

Discrete Mechanics and Optimal Control for Space Trajectory Design [PDF]

open access: yes, 2011
Space trajectory design is often achieved through a combination of dynamical systems theory and optimal control. The union of trajectory design techniques utilizing invariant manifolds of the planar circular restricted three-body problem and the optimal ...
Moore, Ashley
core   +1 more source

A multisine approach for trajectory optimization based on information gain. [PDF]

open access: yes, 2002
This paper presents amultisine approach for trajectory optimization based on information gain, with distance and orientation sensing to knownbeacons. It addresses the problem of active sensing, i.e. the selection of a robot motion or sequence of motions,
J. De Schutter   +9 more
core   +1 more source

Correction-Efficiency-Coefficient-Based Trajectory Optimization for Two-Dimensional Trajectory Correction Projectile

open access: yesAerospace, 2022
Based on the lift-to-drag ratio of a two-dimensional trajectory correction projectile, in this paper, a novel correction efficiency coefficient model has been proposed for the trajectory optimization of a two-dimensional trajectory correction projectile,
Dejian Zhang   +4 more
doaj   +1 more source

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