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    SeaOtter MkII and SAS demonstration successfully completed

    Vessel & ROV News // October 5, 2010

    The Sea Otter MkII on trials with the SAS fitted.

    ATLAS ELEKTRONIK has successfully completed a series of technology demonstrations of the SeaOtter MkII and Vision600 Synthetic Aperture Sonar (SAS). 

    The SAS-equipped AUV conducted over 10 hours of survey runs mapping various sea bed features in the shallow waters of Portland Harbour in the UK. The Vision600 SAS provides 1in resolution across the 200m wide swath covered by the system.

    The Vision SAS system is the result of a dedicated research effort by Atlas Elektronik UK in collaboration with Atlas Elektronik in Germany. The Vision600 SAS is a demonstration of the continual evolution of sonar technology, which Atlas Elektronik Group is committed to pursue.

    The Vision family of sonar is designed in a modular manner and by adding additional transducer arrays in different configurations can be adapted to produce wider swath coverage, higher rates of coverage or inferometric bathymetry.

    The system is designed for AUV use with low power consumption, and can be directly interfaced with the MARPOS positioning system on the AUV. Furthermore, the system is controlled through the use of the payload manager in the SeaOtter MK II where it can be co-located and acoustically interfaced with other sensors.

    A joint Atlas team from Germany, UK and Denmark (ATLAS MARIDAN) held the demonstrations to UK and foreign military, as well as offshore survey and exploration organisations and companies over the course of three days.

    Potential Customers from as far afield as Singapore, USA, Nigeria and all around the EU witnessed smooth deployment, flawless mission execution and easy recovery of the AUV in and out of the Atlas Bincleaves waterside facilities. 

    The company said the demonstration showed the "great flexibility" of both systems, with the installation of the sonar on the AUV taking just two weeks from start and to acceptance test; this being the third different AUV Vision600 has been successfully integrated on. 

    The sonar payload was under-slung on the AUV with no effect to its stability or operational performance, conducting all the survey mission legs at a speed of 3 knots. 

    During the various survey tasks the AUV was set it recorded sonar data from a dummy minefield, conducted a route survey operation, and collected data from a number well known wrecks within the harbour.

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