Terrain-adaptive ping sequencing of UUV integrated multibeam echosounder and sidescan sonar systems

Abstract

AUTHORS' BIOGRAPHIES Edward Thurman received his BEng (1 st Class Hons) in Computer Engineering at the University of Limerick (UL) in 2005 and is a member of its Mobile & Marine Robotics Research Centre (MMRRC). His research interests are in acoustics, realtime control and sensor integration. He is currently pursuing a PhD in the area of autonomous sensor strategies for use on underwater vehicles. James Riordan received his BEng in Electronic Engineering in 2002 at UL. He was awarded the PhD degree in Computational Ocean Acoustics in 2006 for research conducted with the MMRRC, where he is currently a Postdoctoral Research Fellow. His research interests include marine survey operations, realtime imaging-sonar simulation, fractal modelling, multi-resolution model abstraction, mesh optimisation, sonar data processing and visualisation. Daniel Toal received his BSc(Eng) in Electrical Engineering from the Dublin University, his MSc in Manufacturing Systems Engineering from Cranfield University, UK, and his PhD from UL. From 1991 to the present he has been lecturing variously on electronics, automation, CAD/CAM/CIM, robotics, electronics manufacture and avionics. His research interests include autonomous mobile robotics, marine robotics, automation, sensor integration and motion control. He is Director of the MMRRC.

Real-Time Adaptive Control of Multiple Colocated Acoustic Sensors for an Unmanned Underwater Vehicle

“…Cross-sensor acoustic interference can significantly distort the signals received by neighboring sonar sensors [21] and is an important issue that must be taken into consideration during survey planning and survey platform design [22], [23]. The reception circuitries of sonar transducers are typically frequency band-limited to prevent cross-sensor interference from simultaneously operating acoustic instruments of different frequencies [24].…”

Denoising and tracking of sonar video imagery for underwater security monitoring systems

“…The number of modules satisfying condition (1) and condition (2) is 1 S . When relevance is identified among the matching modules, these modules are superimposed together into a three-dimensional combination, whose size is 1…”

“…Because of the lack of natural light and low visibility, the traditional optical images had certain limitations for underwater exploration. As sonar imaging system can image in poorly visible water of turbidity, it is widely used in underwater exploration, such as marine mapping [1], [2], underwater object detection and tracking [3], [4], marine mineral resources exploration [5] and so on.…”