Rapid trajectory design in complex environments enabled by reinforcement learning and graph search strategies
Sign Up to like & getrecommendations! Published in 2020 at "Acta Astronautica"
DOI: 10.1016/j.actaastro.2019.04.037
Abstract: Abstract Designing trajectories in dynamically complex environments is challenging and easily becomes intractable. Recasting the problem may reduce the design time and offer global solutions by leveraging phase space mapping patterns available as accessible regions,… read more here.
Keywords: design complex; trajectory design; rapid trajectory; complex environments ... See more keywords
ISRO’s Unprecedented Journey to the Moon
Sign Up to like & getrecommendations! Published in 2020 at "Acta Astronautica"
DOI: 10.1016/j.actaastro.2020.07.046
Abstract: Abstract Chandrayaan-2, being the sequel of Indian Lunar Mission, differs with Chandrayaan-1 in targeting a specific lunar orbit. The primary ground trajectory design objective is to achieve the desired lunar orbit, from which the lander… read more here.
Keywords: moon; lunar; trajectory design; lunar orbit ... See more keywords
Preliminary trajectory design for NASA’s Solar Cruiser: A technology demonstration mission
Sign Up to like & getrecommendations! Published in 2021 at "Acta Astronautica"
DOI: 10.1016/j.actaastro.2021.03.006
Abstract: Abstract This investigation outlines preliminary trajectory design for NASA’s sail-based Solar Cruiser spacecraft, selected on December 3, 2020, to be a secondary payload launched with the Interstellar Mapping and Acceleration Probe (IMAP) in 2025. Trajectory… read more here.
Keywords: preliminary trajectory; trajectory design; design nasa; solar cruiser ... See more keywords
Input Trajectory Design for the Enhancement of State Estimation through a Set-Theoretic Approach to Observability
Sign Up to like & getrecommendations! Published in 2020 at "Industrial & Engineering Chemistry Research"
DOI: 10.1021/acs.iecr.0c01386
Abstract: This paper presents a method for the input trajectory design of dynamical systems with the aim of enhancing state estimation accuracy. The method is based on the optimization of a modified version ... read more here.
Keywords: trajectory design; state estimation; input trajectory;
Flat trajectory design and tracking with saturation guarantees: a nano-drone application
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Control"
DOI: 10.1080/00207179.2018.1502474
Abstract: Abstract This paper deals with the problem of trajectory planning and tracking of a quadcopter system based on the property of differential flatness. First, B-spline characterisations of the flat output allow for optimal trajectory generation… read more here.
Keywords: trajectory; trajectory design; control; saturation ... See more keywords
Joint Trajectory Design and BS Association for Cellular-Connected UAV: An Imitation-Augmented Deep Reinforcement Learning Approach
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Internet of Things Journal"
DOI: 10.1109/jiot.2021.3093116
Abstract: This article concerns the problem of the trajectory design and base station (BS) association for cellular-connected unmanned aerial vehicles (UAVs). To support safety-critical functions, one primary requirement for UAVs is to maintain reliable cellular connectivity… read more here.
Keywords: gbs; trajectory design; trajectory; approach ... See more keywords
A Novel Trajectory Design Approach for UAV Based on Finite Fourier Series
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Wireless Communications Letters"
DOI: 10.1109/lwc.2020.2965445
Abstract: In this letter, we focus on the trajectory design problem in wireless communications aided by unmanned aerial vehicles (UAVs), where a UAV serves multiple ground users for wireless transmission, to maximize the minimum transmission rate… read more here.
Keywords: fourier series; based finite; approach; trajectory design ... See more keywords
Initial Trajectory Design of Electric Solar Wind Sail Based on Finite Fourier Series Shape-Based Method
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Aerospace and Electronic Systems"
DOI: 10.1109/taes.2019.2906050
Abstract: Electric solar wind sail (E-sail) is an innovative propulsion system, which can generate low and continuous thrust without any propellant by reflecting ions from the solar wind. Because the propulsive acceleration of E-sail is low… read more here.
Keywords: solar wind; wind sail; sail; electric solar ... See more keywords
Multiple Access for Mobile-UAV Enabled Networks: Joint Trajectory Design and Resource Allocation
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Communications"
DOI: 10.1109/tcomm.2019.2910263
Abstract: In this paper, we investigate joint trajectory design and resource allocation algorithms to maximize the minimum average rate among ground users for unmanned aerial vehicle (UAV) communication systems, where both the orthogonal multiple access (OMA)… read more here.
Keywords: multiple access; joint trajectory; access; resource allocation ... See more keywords
Cellular UAV-to-Device Communications: Trajectory Design and Mode Selection by Multi-Agent Deep Reinforcement Learning
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Transactions on Communications"
DOI: 10.1109/tcomm.2020.2986289
Abstract: In the current unmanned aircraft systems (UASs) for sensing services, unmanned aerial vehicles (UAVs) transmit their sensory data to terrestrial mobile devices over the unlicensed spectrum. However, the interference from surrounding terminals is uncontrollable due… read more here.
Keywords: agent deep; multi agent; uav device; deep reinforcement ... See more keywords
Cooperative Internet of UAVs: Distributed Trajectory Design by Multi-Agent Deep Reinforcement Learning
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Transactions on Communications"
DOI: 10.1109/tcomm.2020.3013599
Abstract: Due to the advantages of flexible deployment and extensive coverage, unmanned aerial vehicles (UAVs) have significant potential for sensing applications in the next generation of cellular networks, which will give rise to a cellular Internet… read more here.
Keywords: reinforcement learning; deep reinforcement; internet uavs; trajectory design ... See more keywords