Results 21 to 30 of about 11,432 (211)

基于不确定事件威胁度评估的UUV任务重规划

open access: yes智能科学与技术学报, 2022
无人水下航行器(UUV)的任务规划直接关系到水下作业的效率。由于水下环境复杂,不确定事件频发,有时UUV按照最初的规划很难完成任务。针对UUV任务规划问题,提出基于不确定事件威胁度评估的UUV任务重规划策略。首先,UUV根据任务点的分布进行初始任务规划,采用自组织网络算法为UUV规划访问多任务点的时间顺序及访问任务点的最短路径。其次,判断 UUV 执行任务过程中出现的不确定事件类型,并转换为贝叶斯网络的形式。最后,利用贝叶斯网络对不确定事件的威胁度进行评估。如果威胁度大于阈值,则 UUV 进行任务重规划;
曹翔, 孙长银
doaj  

Identification of Risks in the Course of Managing the Deep Sea Archeological Projects Using Marine Robotics [PDF]

open access: yes, 2016
An analysis is conducted of the basic risks that occur when managing the projects of deep-sea archeological research. It is proposed to consider possible risks of such projects in the form of a general set of risks that contains subsets of the identified
Nadtoshy, A. (Anatoly)
core   +2 more sources

UUV Cluster Strike Task Allocation Model Based on NSGA-Ⅲ

open access: yes水下无人系统学报, 2023
The unmanned undersea vehicle(UUV) cluster will become important in future underwater operations. The task allocation of the UUV cluster is a key problem in the application of the UUV cluster, and it can be regarded as a weapon–target assignment problem ...
Sicong WU, Xi WU
doaj   +1 more source

UUV mission re-planning based on threat assessment of uncertain events

open access: yes智能科学与技术学报, 2022
The mission planning of unmanned underwater vehicles (UUV) is directly related to the efficiency of underwater operations.Due to the complex underwater environment and frequent uncertain events, it is sometimes difficult for UUV to complete the mission ...
Xiang CAO, Changyin SUN
doaj  

Leader-Following Multiple Unmanned Underwater Vehicles Consensus Control under the Fixed and Switching Topologies with Unmeasurable Disturbances

open access: yesComplexity, 2020
We propose a consensus control strategy for multiple unmanned underwater vehicles (multi-UUVs) with unmeasurable disturbances under the fixed and switching topologies.
Zheping Yan   +4 more
doaj   +1 more source

Study on Control System of Integrated Unmanned Surface Vehicle and Underwater Vehicle

open access: yesSensors, 2020
In this paper, in order to overcome certain limitations of previously commercialized platforms, a new integrated unmanned surface vehicle (USV) and unmanned underwater vehicle (UUV) platform connected via underwater cable capable of acquiring real-time ...
Hyunjoon Cho   +5 more
doaj   +1 more source

Achieving Maximum Distance Separable Private Information Retrieval Capacity With Linear Codes [PDF]

open access: yes, 2019
We propose three private information retrieval (PIR) protocols for distributed storage systems (DSSs) where data is stored using an arbitrary linear code.
Amat, Alexandre Graell i   +3 more
core   +2 more sources

Ordering of droplets and light scattering in polymer dispersed liquid crystal films

open access: yes, 2004
We study the effects of droplet ordering in initial optical transmittance through polymer dispersed liquid crystal (PDLC) films prepared in the presence of an electrical field.
?umer S   +27 more
core   +1 more source

Higgs bundles, pseudo-hyperbolic geometry and maximal representations [PDF]

open access: yes, 2017
These notes are an extended version of a talk given by the author in the seminar "Theorie Spectrale et Geometrie" at the Institut Fourier in No- vember 2016. We present here some aspects of a work in collaboration with B. Collier and N.
Toulisse, Jeremy
core   +3 more sources

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

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