2017-03-10 11:34:34

Sentinel Sonar Order

The US Naval Underwater Warfare Center (NUWC) in Rhode Island (USA) has placed a contract with Sonardyne Inc., Houston (TX, USA) for the supply of an additional Sentinel Intruder Detection Sonar system.     The announcement follows the completion of rigorous acceptance and readiness trials by NUWC in 2008 when Sentinel was shown to meet the US Navy's performance requirements for diver detection. The latest contract adds an additional Sentinel to the new Integrated Swimmer Defence System. This is being led by the Program Executive Office, Littoral Mine Warfare (PEO-LMW - PMS480) and the first Sentinel was delivered to NUWC... (read more)
2009-05-01 03:57:22

CHIRP Sidescan Sonar System

Falmouth Scientific, Inc. (FSI) has reached into its well of experience and knowledge to develop the HMS-624 digital CHIRP sidescan sonar system offering dual simultaneous 100/400KHz frequency operation. The HMS-624 provides imaging capabilities for deep and shallow water applications. The twofish electronics incorporate FSI’s CHIRPceiver 24-bit CHIRP signal processing, which results in very-high-resolution sidescan data at towing depths of up to 2,000 metres. The Topside Power/Data Multiplexer Interface is packaged in a standard 2U 19” rack mount enclosure and provides a 4Mb/s DSL connection for the towfish and a standard Ethernet connection for the data processing computer. The system uses... (read more)
2017-01-30 08:42:45

‘Killer’ AUV Sonar System

In January 2001, C&C Technologies (C&C), a company based in Lafayette (Louisiana, USA), introduced the first commercially successful autonomous underwater vehicle (AUV) to the offshore industry. The AUV’s survey sensor suite, which included an EdgeTech side-scan sonar and sub-bottom profiler, performed well in the Gulf of Mexico and Brazilian offshore environments. However, West Africa proved more challenging – particularly for the sub-bottom profiler. C&C soon began searching for alternative technologies to provide better sub-bottom profiler penetration and higher resolution side-scan sonar imaging.Jim Chance, C&C Technologies (USA) Art Kleiner, EdgeTech (USA)<P> Narrator: Fast forward to the early autumn of 2004… C&C... (read more)
2008-04-02 12:00:00

Obstacle Avoidance Sonar

Sonardyne International, UK, has announced the launch of its new Navigation and Obstacle Avoidance Sonar, NOAS, at NAVDEX 2013 in Abu Dhabi. Designed for use on submersible vehicles, NOAS enables faster, safer and more efficient navigation by detecting and classifying potentially hazardous underwater obstacles in its path. Unveiled on the first day of the exhibition, NOAS provides a unique combination of very long range 2D navigation performance, 3D object detection and class leading intruder detection in a single compact sonar. In 2D mode NOAS provides the crucial long range navigation information enabling underwater vessels to steer a safe course. When... (read more)
2013-02-19 04:26:09

Side-scan Sonar Seminar

A Side-scan Sonar Operations and Maintenance Training Seminar is to take place from 17th to 19th May, 2011. The seminar will be conducted at L-3 Klein's Facility in Salem, NH, USA. The training will include two days of classroom instruction and 1 day of on the water training; lunch will be provided daily. This seminar is geared to the operator, as well as to the manager, who wants a better understanding of Side Scan Sonar techniques. The course is open to any user of side-scan sonar regardless of brand, experience, or occupation. The instructor for the course will be Garry... (read more)
2011-03-07 12:19:12

Sonar Interface Unit

The Octopus 160 sonar interface unit's design and is compact, rugged and weather-proof. Compatible with EdgeTech's work-horse 272TD dual-frequency side-scan sonar, it is simple to operate and is suitable for small boat use in many types of underwater survey. Housed in a rugged custom Pelicase, the 160 is highly portable and it can be operated with the lid closed allowing uninterrupted operation in harsh environments.   Another popular feature is the new user interface for all controls and once configured for a specific towfish, this needs no further adjustment. With direct connection to standard EdgeTech 272TD tow cables and full... (read more)
2009-10-09 10:21:17

Multibeam Sonar Training Course

The 51st UNB-OMB / UNH-CCOM Multibeam Sonar Training Course, co-hosted by the Directorate of Hydrography and Navigation, Brazilian Navy, will be held from 23-28 November 2009 at the Hotel Orizzonte, Niterói, RJ, Brazil and this will be first time the course has been conducted in South America.     The Multibeam Course is a 36-lecture, 6-day course primarily designed to provide a theoretical and practical background in marine multibeam survey technology and techniques. The information is tailored for those using marine multibeam survey systems in both the traditional hydrographic survey field (for safety of navigation and nautical charting) as well... (read more)
2009-10-19 10:14:45

Synthetic Aperture Sonar Challenges

Synthetic aperture sonar (SAS) has been under active development for decades. The technique is particularly well suited for autonomous underwater vehicles, and it is expected that SAS will replace traditional side-scan sonars for many ‘high-end’ AUV applications in the years to come. Research systems have been used for more than 15 years and many R&D groups around the world have been able to present images that would not have been possible to produce using traditional sonars. However, in many cases, these impressive sonar images are the result of days of tuning and tweaking by experts. A lot of effort has... (read more)
2008-05-15 12:00:00

Portable Side-Scan Sonar

The HMS-1400 Side-Scan Sonar System is a part of Falmouth Scientific's new Hegg Marine Solutions Division, specialising in products and services for the hydrographic and marine survey markets. The HMS-1400 is a low-cost, portable, single- or dual-frequency side-scan system. Powered by GeoDAS software from Oceanic Imaging Consultants, the HMS-1400 comprises a portable tow fish and waterproof topside case containing the data acquisition, control and power supply.  The HMS-1400 is ideal for harbour security and hazard surveys, search and rescue operations, and small-vessel surveys. Dual-frequency options from 100 through 1200 kHz max allow for best range/resolution selection for specific applications. The... (read more)
2010-03-16 04:12:33
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