Sonar Systems News

(Photo: JW Fishers)

Underwater Metal Detectors Get the Job Done

a ship's propeller dislodges from a vessel and falls to the murky bottom below? Most of the time, the operator does not have the necessary tools to find the missing equipment and must hire an outside diving company to aid in the search. These companies utilize a varying degree of equipment from sonar systems to underwater metal detectors.Marine Diving Service, which provides marine diving services to customers on the east coast of the United States, utilizes JW Fishers’ Pulse 8X in its daily operations. Marine Diving Service's salvage track record includes everything from small objects

Logo: ASL

ASL Hires Taillefer

in the oceanographic tactical domain. He spearheaded operational oceanography, acoustic modeling and decisional technologies with DND, General Dynamics (GD) Canada and Fisheries and Oceans Canada (DFO) since the early 1990s.  At GD Canada, his work spanned from coordination and installation of sonar systems aboard Swedish warships at two Swedish shipyards (Karlskrona and Muskö Naval Base), worked on the Sikorsky CH-148 Cyclone (MHP) program and the Aurora Modernization.  At DFO, he led the Earth Observation Funding Program for DFO scientists, was the architect of the CONCEPTS collaboration

Seagull fitted with KATFISH for remotely operated mine countermeasures and underwater surveillance
Photo: Kraken Robotics Inc.

Kraken Completes Sea Tests of KATFISH with Elbit Systems

area coverage rates. The ability to generate centimeter-scale sonar resolution in all three dimensions has the potential to provide significant improvements in the detection, classification and identification of small seabed objects such as underwater mines and IEDs.From a platform perspective, towed sonar systems have the benefit of acquiring sonar data to operators at high speed and in real-time. This is a critical feature for mine-hunting operations to enable the earliest possible identification and classification of underwater threats. Onboard processing enables real-time analysis of sonar data, significant

EdgeTech 2205 sonar image of ARA San Juan 230kHz at 400m range scale (Credit: Ocean Infinity)

Sonar Helps Find Missing Argentine Submarine

400-meter range scale.EdgeTech’s tri-frequency side scan sonar frequency combination of 75/230/410 kHz enables the host AUV to perform long range searches in deep water, with the middle and higher frequency providing added resolution for better target identification.EdgeTech said its side scan sonar systems provide operators the ability to image large areas of the seafloor during deepwater searches when the whereabouts of sunken objects are largely unknown

CARIS Onboard can be used to process and monitor survey data from multiple platforms (Image: Teledyne CARIS)

Teledyne CARIS to Present at Hydro 18

Processing through Machine Learning’ on October 30, 5:30 p.m. presented by Burns Foster, Manager of New Product Initiatives, Teledyne CARIS. Attendees will learn how this newly assembled machine-learning algorithm is being used to automatically identify and classify common types of noise in sonar systems to significantly reduce manual data cleaning.Teledyne CARIS has also co-authored two additional papers, which will be showcased at Hydro 18:November 1, 3:50pm - ‘Monitoring Quality of Over the Horizon Autonomous Surveys’ presented by David Field, Operations Director, iXblueNovember

Dr. Steve Pearce (Photo: ASL)

ASL Hires Acoustics Scientist Pearce

multipath interference while preserving the seafloor return, and the effectiveness of these methods was established through theory, simulation, and numerous field studies.Prior to joining ASL, Pearce was a System Engineer at Kongsberg Mesotech and managed projects relating to singlebeam and multibeam sonar systems. At Mesotech, he gained experience in many aspects of the product lifecycle, including requirements gathering and refinement, hardware and software design, design verification and field testing, manufacturing and customer support

Kraken Awarded $1 Million Defense Contract

in this segment and sees major opportunities within the upcoming Canadian Underwater Warfare Suite Upgrade, the Canadian Surface Combatant program and other international underwater surveillance programs.Kraken’s Acoustic Signal Processing Group has 80+ years of combined experience in sonar systems development and integration. Their core competency is implementation of digital signal processing and user interface software for Anti-Submarine Warfare (ASW) sonar applications. This work frequently involves integration with embedded processing platforms for shipboard or shore-based analysis

NERC Purchase NORBIT WBMS Systems for AUV Project

Seeking a robust system that has been proven for under-ice mapping, the National Environmental Research Council (NERC) has appointed NORBIT to supply two multi-beam echosounder (MBES) sonar systems for use on the National Oceanography Centre’s (NOC) new 2,000m depth rated AUV platform Autosub2KUI.With the small form factor WBMS Deep Water multibeam systems, NORBIT’s systems will ensure high data quality and ease of operation for the team at NOC often operating in challenging environmental conditions, the manufacturer said.This will support future under-ice and deepsea science, including a

Photo: EdgeTech

$17B Spanish Galleon San Jose: EdgeTech Instrumental

galleon of a Spanish fleet carrying gold, silver and emeralds from the mines of Peru back to Spain.  It was sunk June 8, 1708 in a battle with the British off of Cartagena, Colombia. The ship sank so quickly that there were only 11 survivors of the 600 people onboard. EdgeTech side scan sonar systems provide operators the ability to image large areas of the sea floor during important deep-water searches when the whereabouts of sunken objects are largely unknown.  EdgeTech’s unique side scan sonar frequency pairing options such as 400 / 900 kHz enable very high-resolution searches

Photo: FAU

Autonomous Vessels: FAU Gets $1.25m for Research

technology development focuses on acoustics, marine vehicles, hydrodynamics and physical oceanography, marine materials, nano-composites, applied ocean systems, and ocean energy technologies. Federally and state funded research and development projects include autonomous underwater vehicle-based BOSS sonar systems, high-speed underwater modem communication, air-deployable buoys, durability of composite materials, coastline security technologies and systems for harnessing ocean energy. SeaTech has a long-term partnership with the Naval Surface Warfare Center – Carderock Division and its South Florida

(Photo: Forum Energy Technologies)

University of Limerick Buys ROV for Renewables Research

in this area will have even greater impact.”Researchers at UL’s Centre for Robotics and Intelligence Systems (CRIS) further enhanced the system with UL-developed advanced control software (OceanRings), precision navigation and flight control, state-of-the-art robotic imaging and sonar systems and fully automated manipulator systems.The vehicle will be housed at Limerick Docks where experimentation, testing and demonstration will be carried out. It will also be mobilized on vessels at other ports in Ireland.Kevin Taylor, Vice President for Subsea Vehicles at Forum, said, “We

(Image: JW Fishers)

JW Fishers Celebrates 50 Years

system was introduced, allowing operators to “paint the bottom” of the ocean floor on thermal imaging paper. Acoustic pingers were also added as a way to mark the location of underwater sites and oceanographic instruments. Cable and pipe trackers followed suit in addition to scanning sonar systems and JW Fishers’ sub bottom profiler. The JWF brand was again expanded in 1999 when the first iteration of the website was launched.Recently, Fishers introduced the SAR-1 Search and Recovery metal detector; JW Fishers’ first wireless, “snareless” metal detector specially

Fig.3. Located at 200 m depth, two ADCPs (150 kHz, 5-beam 600 kHz) are installed on the fixed platform of an SPM. (Credit: NSF-OOI/UW/ISS; Dive R1832, VISIONS ‘15 expedition)

ADCPs: Action in OOI's Cabled Observatory

ADCPs are sonar systems that measure motion underwater. Using sound waves, they work like hand-held radars used by police to catch speeding motorists. To measure motion, ADCPs emit sound bursts along beams angled downward.    Echoes are returned due to scattering off particles. Because zooplankton and suspended sediments are carried by the moving water, echoes scattered off them carry a change in pitch; this is the Doppler Effect. It tells how fast the current is moving and in what direction.    Sound waves propagate through the water column so echoes are returned and processed

Photo: US Navy

US Navy Submarines Surface in the Arctic Circle

, and remains one of the most challenging ocean environments on earth," said Rear Admiral James Pitts, commander, Undersea Warfighting Development Center (UWDC).   ICEX provides the U.S. Submarine Force and partners from the Royal Navy an opportunity to test combat and weapons systems, sonar systems, communications and navigation systems in a challenging operational environment. The unique acoustic undersea environment is further compounded by the presence of a contoured, reflective ice canopy when submerged.   According to Pitts, operating in the Arctic ice alters methods and practices

Side Scan Sonar Image of USS Lexington Wreckage and it’s Aircraft on the Sea Floor.  Credit to Paul Allen, the R/V Petrel team. (Photo: EdgeTech)

EdgeTech Sonar Utilized in Search of the USS Lexington

USS Lexington.   The USS Lexington, one of the first aircraft carriers built and commissioned by the United States of America, was sunk during the Battle of the Coral Sea in 1942 off the coast of Australia. The wreckage was discovered in approximately 3,000 meters of water. EdgeTech side scan sonar systems provide operators the ability to image large areas of the sea floor during important deep-water searches when the whereabouts of sunken objects are largely unknown.   EdgeTech’s unique side scan sonar frequency pairings such as 75 / 230 kHz provide the ability to image over a 2,000

Fig 1 – Echoscope XD, Echoscope and Echoscope C500 Sonars (Image: Coda Octopus)

Meet the Future of Visualization and Mapping Sonars

on research and development (R&D) has characterized the company ever since. Coda Octopus has continued to lead the geophysical acquisition and processing market with its GeoSurvey, DA and Survey Engine product ranges. In addition it has developed a unique range of patented real-time 3D volumetric sonar systems marketed under the brand name of Echoscope and are leaders in real-time 3D visualization subsea. This world first technology allows the user to generate a real-time 3D image of the underwater environment regardless if low or zero visibility conditions prevail and has been successfully used on

The ST2400 VDS is a Varial Depth Sonar for Anti-Submarine Warfare applications (Photo: Kongsberg Maritime)

Kongsberg Naval Sonars for Göteborg-Class Corvettes

Kongsberg Maritime said it has been selected to deliver ST2400 VDS (Varial Depth Sonar) systems for Anti-Submarine Warfare applications (ASW) to the Royal Swedish Navy as part of SAAB’s upgrade program for the Göteborg-Class Corvettes fleet.   The main purpose of the ST2400 VDS is to detect submarines, mines and Unmanned Underwater Vehicles in Littoral waters. The ST2400 VDS upgrade will strengthen the Göteborg-Class Corvettes Anti-Submarine capability operating in the Baltics.   The ST2400 VDS is a medium-frequency sonar designed with an emphasis on improving performance

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