Automated Optimisation of Simultaneous Multibeam and Sidescan Sonar Seabed Mapping

Thurman, Edward; Riordan, James; Toal, Daniel

doi:10.1109/oceanse.2007.4302324

Cited by 8 publications

(5 citation statements)

References 10 publications

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“…An advanced, data-adaptive, multi-sonar survey controller has been developed within the centre (Thurman et al, 2007). Patent pending, this new technology dramatically improves survey efficiency and data-correlation by making it possible to acquire multiple sets of survey data simultaneously from different types of sonar operating within the same bandwidth (Figs 6 and 7).…”

Section: Adaptive Multi-sonar Controllermentioning

confidence: 99%

“…View of geo-referenced multibeam data in Reson PDS2000 software The controller works by adapting the ping schedule of two (or more) sensors using a novel real-time beam-processing algorithm (Thurman et al, 2007). The controller uses multibeam sonar to build a digital model of the terrain beneath the ROV as it traverses over the seabed.…”

Section: Adaptive Multi-sonar Controllermentioning

confidence: 99%

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A flexible, multi-mode of operation, high-resolution survey platform for surface and underwater operations

Toal

Nolan

Riordan

et al. 2009

uw tech: int j soc uw tech

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This paper describes the ROV LATIS , a multi-mode of operation flexible platform for high-resolution nearseabed survey from shallow inshore waters to depths beyond 1000m. The paper further describes the operation modes of the vehicle. Special system features include: deployment flexibility for both small inshore boats and larger research vessel; fault tolerant controls; onboard computer control enabling real-time disturbance reaction, autopilot functionality and autonomous underwater vehicle (AUV) experimentation; and topside augmented reality operations support, simulation for remotely operated vehicle (ROV) pilot and sonar operator/hydrographer training. Vehicle and control development using the University of Limerick (UL) virtual underwater laboratory/simulation tools and hardwarein-the-loop testing is described. The paper includes test results from the March 2009 offshore sea trials with the ROV LATIS .

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Section: Adaptive Multi-sonar Controllermentioning

confidence: 99%

Section: Adaptive Multi-sonar Controllermentioning

confidence: 99%

A flexible, multi-mode of operation, high-resolution survey platform for surface and underwater operations

Toal

Nolan

Riordan

et al. 2009

uw tech: int j soc uw tech

Self Cite

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show abstract

“…The integration of multiple sensors onto a single platform, such as a UUV, also minimises the relative positional error between features evident in the various datasets, as the target region is ensonified by the sensors under the same environmental conditions and georeferenced by the same navigational data. Simultaneous multi-sonar operation also eliminates the need to conduct separate surveys for each instrument, as well as the collection of supporting data required to fully understand the operating environment during each individual survey, thereby significantly reducing the survey duration and consequently the survey costs (Thurman et al, 2007). Reports of successful AUV survey missions suggest that bathymetric mapping, sidescan imaging, magnetometer survey and sub-bottom profiling are the principle mission of the new survey-class AUVs (Whitcomb, 2000).…”

Section: Sensor Integrationmentioning

confidence: 99%

Multi-Sonar Integration and the Advent of Senor Intelligence

Thurman

Riordan

Toal

2009

Advances in Sonar Technology

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Section: Sensor Integrationmentioning

confidence: 99%

Advances in Sonar Technology

Silva¹

2009

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The demand to explore the largest and also one of the richest part of our planet, the advances in signal processing promoted by an exponential growth in computation power and a thorough study of sound propagation in the underwater realm, lead to remarkable advances in sonar technology in the last years.Since the use of imaging system that rely on electromagnetic waves (optical, laser or radar) is restricted to only very shallow water environments, and given that the good propagation of sound waves in water is known from at least the writings of Leonardo da Vinci, the sonar (sound navigation and raging) systems are the most widespread solution for underwater remote sensing.Sonar systems can be divided into two major types: passive sonar systems that enable detection of a sound emitting target and active sonar systems that use the properties of a signal reflected on the targets for its detection and image formation.As system complexity increases, the study of the way sound is used to obtain reflectivity and bathymetry data from targets and submersed areas becomes fundamental in the performance prediction and development of innovative sonar systems.Because of the many similarities between sonar and radar, algorithms created for the latter found application in sonar systems which made use of the advances in signal processing to overcome the barriers of the problematic underwater propagation medium and to challenge the resolution limits. In particular, synthetic aperture methods, applied with so much success in radar imagery, were adapted to sonar systems. This in turn enabled a considerable increase in sonar image quality and system robustness. Target detection developments lead to the use of multiple transducer sensors and sophisticated beam forming techniques with also excellent results.High quality sonar imagery with reduced noise and enhanced resolution enables more complex applications. Leaving the traditional real of military applications, sonar civil applications arise for the study of biology ecology and related fields. Moreover integration and data fusion of different sensors is becoming more and more common, being it navigation data integration and enhancement for synthetic aperture, sonar systems with different propagation characteristics or optical image integration for the improvement of object detection.But, not unlike natural evolution, a technology that matured in the underwater environments is now being used to solve problems for robots that use the echoes from airacoustic signals to derive their sonar signals.The work on hand is a sum of knowledge of several authors that contributed in various different aspects of sonar technology. This book intends therefore to give a broad overview of the advances in sonar technology of the last years that resulted from the research effort of the authors in both sonar systems and its applications. It is destined to scientist and VIII engineers from a variety of backgrounds and, hopefully, even those that never had contact with sonar technology before will find an ...

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Automated Optimisation of Simultaneous Multibeam and Sidescan Sonar Seabed Mapping

Cited by 8 publications

References 10 publications

A flexible, multi-mode of operation, high-resolution survey platform for surface and underwater operations

A flexible, multi-mode of operation, high-resolution survey platform for surface and underwater operations

Multi-Sonar Integration and the Advent of Senor Intelligence

Advances in Sonar Technology

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