The Feb. 20, edition of HYDRO International featured a story on the introduction of EdgeTech’s 2205 AUV-based sonar system which they billed as “Ultra-high-resolution sidescan sonar” but no quantifiable numbers were used. That makes it difficult to determine whether or not they have a competitive advantage over, for example, locally based Kracken Sonar Systems Inc.
According to Glenda Layte, spokesperson for Kraken, many companies in the sonar field “will talk about their resolution as being, for example, ‘very good’, or ‘great’, or ‘unrivaled’…whatever their word choice happens to be, but they do not give actual technical specifications to back it up. At Kraken however, we will put our results out there for the whole world to see–and why wouldn’t we? they are the best in the industry.” And she invited OceansAdvance to run the Edgetech story with that qualification.
So here it is.
(Hydro International 20/02/2014) EdgeTech, USA, has introduced the 2205 AUV-based sonar system. The Teledyne Gavia AUVs delivered recently to the Polish Ministry of Defence for mine countermeasures (MCMs) were equipped with EdgeTech 600/1600kHz simultaneous dual-frequency sidescan sonar payloads. The very-high-frequency EdgeTech systems were selected for their long-range detection and ultra-high-resolution classification capability for MLOs (mine-like objects).
The EdgeTech 2205 classification frequency of 1600kHz is capable of producing near-photographic-quality images of targets making MLO target classification very easy as shown on the MLO sonar image with this article. Other 2205 attributes that contributed to the selection of the EdgeTech systems were low power, small electronics’ volume and compact transducers making integration on the small AUVs possible and easy.
Manufacturers and operators of smaller-sized AUV systems have embraced the sonar which were traditionally only available in larger-sized AUV systems. One area that continues to see an adoption of the smaller-size vehicles is the military community. High-performance compact sonar systems have helped that growth curve.
EdgeTech sonar systems have now been installed on a number of manned portable autonomous underwater vehicles used in Navy operations and commercial surveys. System configurations include a range of sidescan sonar frequency offerings such as 400/900kHz frequency pairs or 600/1600kHz frequencies. Additionally the system can be configured to provide bathymetry on top of the dual-frequency sidescan sonar solution.