Results 21 to 30 of about 11,676 (232)

An Unmanned Surface Vehicle (USV): Development of an Autonomous Boat with a Sensor Integration System for Bathymetric Surveys

open access: yesItalian National Conference on Sensors, 2023
A reliable yet economical unmanned surface vehicle (USV) has been developed for the bathymetric surveying of lakes. The system combines an autonomous navigation framework, environmental sensors, and a multibeam echosounder to collect submerged topography,
Fernando Sotelo-Torres   +2 more
semanticscholar   +1 more source

A hybrid air-sea cooperative approach combined with a swarm trajectory planning method

open access: yesPaladyn, 2020
This work addresses the issue of ocean monitoring and clean-up of polluted zones, as well as the notion of trajectory planning and fault tolerance for semi-autonomous unmanned vehicles.
Bella Salima   +2 more
doaj   +1 more source

Functional clustering of mouse ultrasonic vocalization data. [PDF]

open access: yesPLoS ONE, 2018
Mouse ultrasonic vocalizations (USVs) are studied in many fields of science. However, various noise and varied USV patterns in observed signals make complete automatic analysis difficult.
Xiaoling Dou   +2 more
doaj   +1 more source

Ultrasonic Vocalizations Emission across Development in Rats: Coordination with Respiration and Impact on Brain Neural Dynamics

open access: yesBrain Sciences, 2021
Rats communicate using ultrasonic vocalizations (USV) throughout their life when confronted with emotionally stimulating situations, either negative or positive.
Julie Boulanger-Bertolus   +1 more
doaj   +1 more source

MODS—A USV-Oriented Object Detection and Obstacle Segmentation Benchmark [PDF]

open access: yesIEEE transactions on intelligent transportation systems (Print), 2021
Small-sized unmanned surface vehicles (USV) are coastal water devices with a broad range of applications such as environmental control and surveillance. A crucial capability for autonomous operation is obstacle detection for timely reaction and collision
Borja Bovcon   +5 more
semanticscholar   +1 more source

High-Level Path Planning for an Autonomous Sailboat Robot Using Q-Learning

open access: yesSensors, 2020
Path planning for sailboat robots is a challenging task particularly due to the kinematics and dynamics modelling of such kinds of wind propelled boats. The problem is divided into two layers. The first one is global were a general trajectory composed of
Andouglas Gonçalves da Silva Junior   +4 more
doaj   +1 more source

Local Path Planning with Multiple Constraints for USV Based on Improved Bacterial Foraging Optimization Algorithm

open access: yesJournal of Marine Science and Engineering, 2023
The quality of unmanned surface vehicle (USV) local path planning directly affects its safety and autonomy performance. The USV local path planning might easily be trapped into local optima.
Yang Long   +6 more
semanticscholar   +1 more source

Analysis of characteristics of foreign unmanned surface vehicle swarm combat application and proposed countermeasures

open access: yesZhongguo Jianchuan Yanjiu, 2023
As an important component of future naval campaigns, the unmanned surface vehicle (USV) swarm is an important direction for the development of unmanned maritime assets in various counties.
Wei FENG   +4 more
doaj   +1 more source

Path Planning and Obstacle Avoiding of the USV Based on Improved ACO-APF Hybrid Algorithm With Adaptive Early-Warning

open access: yesIEEE Access, 2021
Path planning is important to the efficiency and navigation safety of USV autonomous operation offshore. To improve path planning, this study proposes the improved ant colony optimization-artificial potential field (ACO-APF) algorithm, which is based on ...
Yan-li Chen   +4 more
semanticscholar   +1 more source

Semi-Automated Training of Rat Ultrasonic Vocalizations

open access: yesFrontiers in Behavioral Neuroscience, 2022
Rats produce ultrasonic vocalizations (USVs) for conspecific communication. These USVs are valuable biomarkers for studying behavioral and mechanistic changes in a variety of diseases and disorders. Previous work has demonstrated operant conditioning can
Aaron M. Johnson   +7 more
doaj   +1 more source

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