Side-Scan Sonar Seminar

L-3 Klein Associates announces a Side-Scan Sonar Operations and Maintenance Training Seminar from 9 October to 11 October 2007. The three-day 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.   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. Topics covered will include Basic Sonar Principles; Types of... (read more)
2007-08-21 12:00:00

SHADOWS Mapping Sonar

The delivery of high quality, repeatable data is of paramount importance for the successful collation of any large dataset, particularly when the data is acquired in a number of successive campaigns (as with EEZ mapping, route surveys, debris surveys, pre-seismic surveys, environmental characterization surveys, etc). IXSEAs SHADOWS Mapping Sonar is an innovation in seafloor mapping, that may give the answer.   Aside a Synthetic Aperture Sonar (SAS technology), SHADOWS combines automatic generation in real-time of high-resolution mosaic in GeoTiff format; high-accuracy positioning (the mosaic is generated from the fish position); 600 m true swath (no blind zone at nadir); coverage... (read more)
2008-05-26 12:00:00

Simrad's New Sonar Direction

Simrad invited distributors from all over the world to join them onboard the M/V Finnmarken, which left Tromsø harbor on 5th October, reaching Trondheim on the morning of 7th October. Simrad presented three new sensors for its PI trawl monitoring system: the Geometry Sensor, Seine Sounder and combination Spread/Depth sensors.   The fisheries research community was well represented onboard M/V Finnmarken. Simrad's fishery research experts discussed the latest high-tech developments in its tools for fishery research, focusing on multibeam systems such as the ME70 Multibeam Echosounder and MS70 Multibeam Sonar.   63 delegates from 20 countries joined Simrad on the... (read more)
2007-10-23 02:02:00

Navy Sonar Operations Proposal

NOAA's Fisheries Service is seeking comments now through 19th November on its proposed rule to authorise impacts to marine mammals during Navy training exercises around the Mariana Islands. The NOAA proposal includes protective measures designed to minimise effects on marine mammals.     The Navy has requested an authorization under the Marine Mammal Protection Act, because the mid-frequency sound generated by tactical sonar, and the sound and pressure generated by detonating explosives, may affect the behavior of some marine mammals, or cause a temporary loss of their hearing sensitivity.   NOAA's Fisheries Service does not expect the exercises to result... (read more)
2009-10-21 11:59:22

Acoustic Classification by Sonar

Disparate approach successful in cost-effective mapping
A breakthrough in signal conditioning has lead to significant improvements in single-beam and swath classification. With modern computers, this allows cost-effective bottom classification across multiple sonar platforms. The common dataset generated as a result of the highly successful shallow-survey conferences sponsored by the University of New Hampshire Ocean Mapping Group and the Defence Scientific and Technical Organisation of Australia is an ideal proving ground for classifying the same seabed using multiple platforms. The results of processing and classifying a common dataset are presented in this article. Acoustic seabed classification is in wide use for applications from habitat mapping to mine... (read more)
2008-01-01 01:00:00

Sonar Uncertainty Instrument

L-3 Klein (USA) is to present the HydroChart 5000 (HC5000) Sonar Uncertainty Model at the upcoming Shallow Survey 2012 Conference to be held in Wellington, New Zealand, from 20th to 24th February 2012. The HC5000 is a portable, high-speed hydrographic survey system able to simultaneously collect IHO-quality bathymetry and co-registered, high-resolution, multi-beam side scan sonar data.   In order to qualify the system for use in hydrographic survey, L-3 Klein developed an uncertainty model which makes use of existing theoretical models of acoustic propagation, bottom and surface scattering, array processing, bathymetry signal processing, and statistical processing. This model was statistically... (read more)
2012-01-17 02:18:25

Side-scan Sonar Demonstration

GeoAcoustics has launched Sonar 2094 Digital. A series of seminars and demonstrations were held by Simrad Spain, the local Kongsberg office, in November and December of the past year for their naval, scientific and industry customers. The capabilities of this technology for environmental mapping, engineering and archaeology surveys as well as object detection and classification were shown in various places along the Mediterranean coast.   Sonar 2094 Digital is the successor of the Dual Frequency Side-scan sonar, which was first launched in 1996 and developed into an industry standard, with over 1,000 units sold worldwide. Sonar 2094 Digital combines the... (read more)
2011-01-18 02:55:46

3D Sonar Technology

The journey from oil and gas to homeland security and back again
Since its introduction many years ago, survey sonar has evolved steadily, but is still a difficult and non-intuitive survey tool, requiring large amounts of processing to arrive at the most basic end product. Initially, anyone wanting to survey or inspect the underwater environment was limited to single beam echo-sounders, in simple terms one-dimensional sonar, yielding very little quantifiable data. These in turn were developed into mechanically scanned sonars, and subsequently into today’s high performance multi-beam and forward looking sonars which are the back-bone of the survey industry. Even the very best commercially available multi-beam sonar delivers only 2 dimensional data... (read more)
2008-01-01 01:00:00

Sonar for Underwater Vehicles

EdgeTech has presented a new sonar solution specifically designed for AUVs, ROVs, USVs and other hosted platforms. The 2205 Series is the latest generation of electronics, transducers and software specifically optimised for the demanding size, power and cost constraints present in hosted platform systems. The system runs the full range of EdgeTech side scan sonar frequencies from 100kHz to 1600kHz, sub-bottom profiler frequencies from 500Hz to 24kHz and swath bathymetry at 230kHz or 540kHz making it a versatile sonar imaging solution on the market focused on the underwater vehicle group. The new 2205 also is available with EdgeTech’s Dynamic Focusing... (read more)
2012-02-13 11:57:31

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
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