Results 11 to 20 of about 847,616 (208)
Design of Sliding Mode Autopilot with Steady-state Error Elimination for Autonomous Underwater Vehicles [PDF]
Autonomous Underwater Vehicles (AUVs) have nonlinear and time-varying behaviour and unmodelled dynamics. This paper describes the design, development and evaluation of nonlinear sliding mode autopilot system for an AUV to control the speed, steering and ...
Shi, Juan, Juan Shi
core +7 more sources
State-of-the-Art System Solutions for Unmanned Underwater Vehicles
Unmanned Underwater Vehicles (UUVs) have gained popularity for the last decades, especially for the purpose of not risking human life in dangerous operations. On the other hand, underwater environment introduces numerous challenges in navigation, control
A. E. Yilmaz, B. Gokalp, O. Yildiz
doaj +1 more source
Underwater Optical-Sonar Image Fusion Systems
Unmanned underwater operations using remotely operated vehicles or unmanned surface vehicles are increasing in recent times, and this guarantees human safety and work efficiency. Optical cameras and multi-beam sonars are generally used as imaging sensors
Hong-Gi Kim, Jungmin Seo, Soo Mee Kim
doaj +1 more source
Applications of inverse simulation to a nonlinear model of an underwater vehicle [PDF]
Inverse simulation provides an important alternative to conventional simulation and to more formal mathematical techniques of model inversion. The application of inverse simulation methods to a nonlinear dynamic model of an unmanned underwater ...
Murray-Smith, D., Lu, L., McGookin, E.
core +5 more sources
Effects of Regular Waves on Propulsion Performance of Flexible Flapping Foil
The objective of the present study is to analyze the effects of waves on the propulsive performance and flow field evolution of flexible flapping foil, and then offer a way to take advantage of wave energy.
Peng Liu +4 more
doaj +1 more source
Research Progress on Corrosion of Structural Materials for Unmanned Underwater Submersible Vehicles [PDF]
Unmanned underwater vehicles are one of the indispensable tools for people to develop, utilize and explore the ocean, and have broad military application prospects.With the continuous progress and development of science and technology, unmanned ...
ZHANG Qichao, ZHANG Baolong, JIANG Yishan, ZHAO Xin, SONG Penglei, XIAO Feng.
doaj +1 more source
Collaborative Control of Unmanned Underwater Vehicles [PDF]
Abstract This paper targets at urgent issues, which are the search for complex underwater environments and the effective control of underwater seas. Firstly, studies the collaborative control of task-oriented UUV. Secondly, designs reasonable controllers and prove the rendezvous of UUV.
Huailong Wang, Zhenxing Yao, Yinghui Guo
openaire +1 more source
In the computer vision field, underwater object detection has been a challenging task. Due to the attenuation of light in a medium and the scattering of light by suspended particles in water, underwater optical images often face the problems of color ...
Zhuo Wang +3 more
doaj +1 more source
This paper proposes an approach of fusion geo-referenced and non-georeferenced data. These data can be acquired by a) unmanned surface vehicles (USVs), b) unmanned aerial vehicles (UAVs), c) airborne and submersible optical sensors, d) acoustic sensors ...
Fermín Villalpando +3 more
doaj +1 more source
Research on Unmanned Underwater Vehicle Threat Assessment [PDF]
The unmanned underwater vehicle (UUV) plays an ever increasing and important role in the modern marine environment. In particular, the tasks of underwater reconnaissance and surveillance, underwater mine hunting and anti-submarine warfare, all poses a serious and dangerous threat to humans.
Hongfei Yao +4 more
openaire +2 more sources

