Results 21 to 30 of about 738 (165)

Research on Method of Collision Avoidance Planning for UUV Based on Deep Reinforcement Learning

open access: yesJournal of Marine Science and Engineering, 2023
A UUV can perform tasks such as underwater surveillance, reconnaissance, surveillance, and tracking by being equipped with sensors and different task modules.
Wei Gao   +5 more
doaj   +1 more source

A Dynamic Obstacle Avoidance Method for Unmanned Surface Vehicle under the International Regulations for Preventing Collisions at Sea

open access: yesJournal of Marine Science and Engineering, 2022
A new method is proposed for the dynamic obstacle avoidance problem of unmanned surface vehicles (USVs) under the international regulations for preventing collisions at sea (COLREGs), which applies the particle swarm optimization algorithm (PSO) to the ...
Diju Gao   +4 more
doaj   +1 more source

Robot path planning by integrating improved A* algorithm and DWA algorithm

open access: yesJournal of Physics: Conference Series, 2023
Abstract Traversing many nodes, low search efficiency, path slanting through obstacles, many path redundancy points, and the inability of dynamic real-time obstacle avoidance are all typical problems of A* algorithm. In this paper, A robot path planning method combining improved A* algorithm and DWA algorithm is proposed.The ratio of the
Mengqi Jin, Hanxi Wang
openaire   +1 more source

Unmanned Vessel Collision Avoidance Algorithm by Dynamic Window Approach Based on COLREGs Considering the Effects of the Wind and Wave

open access: yesJournal of Marine Science and Engineering, 2023
In recent years, the rapid development of artificial intelligence algorithms has promoted the intelligent transformation of the ship industry; unmanned surface vessels (USVs) have become a widely used representative product.
Xiaoyu Yuan   +3 more
doaj   +1 more source

Research on Unmanned Surface Vessel Aggregation Formation Based on Improved A* and Dynamic Window Approach Fusion Algorithm

open access: yesApplied Sciences, 2023
The traditional A* and DWA fusion algorithm has three problems in the task of aggregation formation: one is the lack of meeting coordination strategy, the other is the inability to unify the terminal course, and the third is too many turning points in ...
Ge-An Wei, Jian-Qiang Zhang
doaj   +1 more source

Parameter Fuzzy Self-Adaptive Dynamic Window Approach for Local Path Planning of Wheeled Robot

open access: yesIEEE Open Journal of Intelligent Transportation Systems, 2022
As a classic algorithm for realizing robot local path planning, the dynamic window approach (DWA) uses an objective function to choose the optimal velocity commands.
Lidan Xiang, Ximin Li, Hao Liu, Peng Li
doaj   +1 more source

Path Planning: An Analytical Comparison of A* Algorithm Fusion DWA and Ant Colony Algorithm Fusion DWA

open access: yesHighlights in Science, Engineering and Technology, 2023
In recent decades, the robotics sector has grown significantly, and the automation of industrial production and daily life has become a shared objective. In recent years, self-driving cars have emerged around the globe, but the majority are still in the research phase and very few are in use in developed regions, not only because of their cost, but ...
openaire   +1 more source

Dynamic Path Planning of Mobile Robot Based on Improved Sparrow Search Algorithm

open access: yesBiomimetics, 2023
Aiming at the shortcomings of the traditional sparrow search algorithm (SSA) in path planning, such as its high time-consumption, long path length, it being easy to collide with static obstacles and its inability to avoid dynamic obstacles, this paper ...
Lisang Liu   +5 more
doaj   +1 more source

Collision Avoidance Algorithm Based on COLREGs for Unmanned Surface Vehicle

open access: yesJournal of Marine Science and Engineering, 2021
Recently, unmanned surface vehicles (USV) are being actively developed. For USVs to be put to practical use, it is necessary to secure safety by preventing collisions with general ships.
Hyo-Gon Kim   +4 more
doaj   +1 more source

Evaluating the energy efficiency of DWA algorithms in UDWDM-PONs

open access: yes2016 18th International Conference on Transparent Optical Networks (ICTON), 2016
Ultra-Dense Wavelength Division Multiplexing (UDWDM) has been proposed for the optical access Passive Optical Network (PON) in the COst-effective COhereNt Ultra-dense-WDM-PON for lambda-To-the-user access (COCONUT) project, introducing the wavelength-to-the-user concept.
Segarra Mullerat, Josep   +3 more
openaire   +2 more sources

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