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28 juin 2017 3 28 /06 /juin /2017 15:55
photo Thales

photo Thales

 
source Thales
 
In June 2017, on the occasion of the Belgian Defense Technology & Industry Day trials, held at the Naval Base at Zeebrugge, Thales successfully demonstrated the performances of its latest SAMDIS Multi-view Synthetic Aperture Sonar (SAS) system integrated onboard an ECA A27 AUV platform.

The A27 proved to be an extremely stable, enduring and reliable platform, capable of withstanding the strong tidal currents usually encountered in the North Sea.

The SAMDIS sonar generates long range, high resolution images (1 inch x 1 inch) with excellent reverberation-to-shadow contrast even in very shallow waters. Owing to its Multi-View capability, unique on the market, SAMDIS simultaneously generates 3 views of a given contact under different angles in a single path. The combination of high resolution and several independent views in a single pass is key in order to drastically reduce ambiguity when taking a detection/classification decision. This capability enables SAMDIS to combine high coverage with very high confidence rates of probability of detection and probability of classification of mines, with a very low false alarm rate.

SAMDIS outputs are best processed by the PRACTIS software that has again proven to be a powerful detection and classification tool that drastically optimise operator workload. PRACTIS is so efficient and user-friendly that Belgian Navy operators learned to operate it easily during the sea trials. The combination of SAMDIS and PRACTIS enables high confidence in classification of contacts as NON-MILCO, thus avoiding losing time in lengthy investigations to identify the contact.
 
SAMDIS is designed for seamless integration into various platforms with a combination of several array lengths for medium and heavy weight AUVs as well as side scan sonars towed by USV’s.

Thales has 50 years of cumulative experience in developing advanced technologies to support major Navies in their Mine-Hunting operations.
 
The A27/SAMDIS combination is part of the equipment package that will be delivered to France and the UK as part of their MMCM programme. This on-going European programme aimed at delivering a robust, proven unmanned mine hunting package to these two Navies as they switch to Unmanned MCM capabilities.

In 2016, Thales performed a number of successful demonstrations of its HALCYON USV off the North Sea Coast of Zeebrugge in Belgium and in Northern Scotland for the Royal Navy Unmanned Warrior exercises. During both trials, the HALCYON USV was towing its Towed Synthetic Aperture Sonar (TSAS) system. At the end of the trials in Belgium, Thales was well assessed for detection performance against all mine type, thus recognising the quality of the group’s unmanned mine-hunting systems’ capabilities.

In the framework of the Belgian/Dutch MCM capability replacement programme, Thales intends relying on its multi domain pedigree to offer state-of-the-art solutions in MCM: mission system integration and naval combat system. This will ensure a strong level of local industry involvement in terms of system development as well as future system support, combined with a very high level of operational efficiency.
 
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9 mars 2015 1 09 /03 /mars /2015 19:55
L'Ifremer se dote d'un nouvel engin sous-marin ultraperformant

 

09 Mars 2015 Par Marine & Océans (Ifremer)

 

Les scientifiques de l'Ifremer effectuent les derniers tests d'Ariane avant une campagne en mer avec le navire océanographique Le Suroît. Avec l'arrivée de cet HROV (Hybrid Remotely Operated Vehicle), la famille des engins sous-marins de l'Ifremer composée notamment du Victor 6000, du Nautile, de l'AsterX ou de l'IdefX, s'agrandit ! Ce véhicule compact - sa taille est comparable à celle d'une voiture citadine - offre des possibilités de déploiement nouvelles en mode télé-opéré [1] ou autonome [2] jusqu'à 2500 mètres d'immersion, à partir des navires côtiers ou hauturiers.

 

Le déploiement d'Ariane est possible sur une grande variété de missions, avec une mise en œuvre très souple. Le principe de déploiement en mode télé-opéré repose sur une liaison innovante à fibre optique. Cela permet une mise en œuvre à partir de navires de petite taille non équipés de positionnement dynamique, optimisant également le coût des opérations en mer. En mode autonome, le véhicule plonge librement sans lien avec la surface, en se basant sur ses capteurs pour interpréter l'environnement ainsi que grâce à un contrôleur intelligent embarqué.

 

Ariane est équipée de deux bras manipulateurs à haute précision, d'un préleveur d'échantillons (eau, sédiments, espèces) et d'un système d'imagerie optique haute-résolution géo-référencé. La communication entre les scientifiques et l'engin est permanente, assurée soit par la fibre optique en mode télé opéré, soit par modem acoustique en mode autonome.

 

Ariane va réaliser des missions d'observation et de cartographie des fonds marins, y compris dans les reliefs sous-marins difficiles de type canyon ou falaise. Ce sous-marin pourra intervenir sur des situations d'urgence (pollutions maritimes accidentelles ou naturelles, recherche de boîte noire ....) ou d'inspection (observatoires profonds, ouvrages industriels offshore, sites archéologiques...).

 

L'originalité de sa conception, brevetée par l'Ifremer et développée au sein de son Centre Européen de Technologies Sous-Marines (CETSM), a retenu l'attention de partenaires industriels pour des usages allant au-delà du domaine scientifique.

 

[1] ROV: Remotely Operated Vehicle (liaison physique par fibre optique reliant le robot au navire)

 

[2] AUV:.Autonomous Underwater Vehicle (l'appareil est en mode autonome sans lien physique avec le navire)

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21 novembre 2013 4 21 /11 /novembre /2013 08:20
Reliant autonomous underwater vehicle sets endurance record

 

WASHINGTON, Nov. 20 (UPI)

 

The U.S. Navy's Reliant counter-mine autonomous underwater vehicle has set an endurance record, traveling 315 miles in a bit more than 100 hours.

 

The Reliant, the prototype of the new Knifefish mine-hunter AUV, is an advanced version of Bluefin Robotics' Bluefin-21 AUV and is operated by the U.S. Naval Research Laboratory's Acoustics Division.

 

The Navy Research Laboratory said the Reliant traveled from Boston to New York City as an experiment to uncover the challenges and requirements for significantly extending AUV endurance for new applications.

 

During the voyage, the autonomous underwater vehicle traveled at a depth of 32 feet at an average speed of 2.5 knots. It surfaced every 32 miles to report and reached Upper New York Bay with a 10 percent energy reserve.

 

"This record multi-day research mission demonstrates the state-of-the-art autonomy methods and capabilities of the Reliant AUV," said Dr. Brian Houston, head, NRL Physical Acoustics Branch. "It is our first step in developing a robust autonomy paradigm for AUVs in long-endurance scenarios."

 

Reliant is 20 feet long and weighs more than 1,300 pounds. It features a 40 kilowatt-hour energy section, a fiber-optic gyro-based inertial navigation system integrated with GPS, and a Doppler velocity log for precise underwater navigation.

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24 juillet 2013 3 24 /07 /juillet /2013 11:55
Autonomous Underwater Vehicles (AUV) légers

Autonomous Underwater Vehicles (AUV) légers

23/07/2013 Marine nationale

 

Actuellement, la Marine procède à des essais sur l’Autonomous Underwater Vehicles (AUV) légers dans la perspective d’en recevoir 6 dans les mois à venir. À ce stade, les essais sont concluants.

 

2 mètres et 70 Kilos, voici les mensurations de l’AUV Alister 100. Ce seront bientôt les premiers drones sous-marins de guerre des mines dans la Marine nationale. Ils seront utilisés par les GPD en priorité dans le cadre d’opérations avancées (de type Very Shallow Water ou chenal d’assaut) et de déminage portuaire, et dans des tâches de levés de fonds et de reconnaissance.

ALISTER 100 - ECA Robotics

ALISTER 100 - ECA Robotics

Fin 2010, un marché avait été notifié par La Direction Générale de l'Armement afin d’en approvisionner six au profit des Groupes de Plongeurs Démineur. Techniquement, deux marins, positionnés sur une cale ou à bord d'une embarcation pneumatique, suffisent à le mettre en œuvre. Composé de matériel de pointe, ce véhicule sous-marin aura une très grande précision de navigation. Cette dernière facilitera le travail dans des milieux étroits comme les chenaux ou bras de mer. Cette même précision sera un atout majeur lors  des échanges d’informations avec d’autres systèmes de combat guerre des mines. Quant au sonar de type Klein, il permettra de travailler selon différentes fréquences afin de privilégier au choix, la distance de détection ou la définition des images obtenues.

 

Le marché prévoit la livraison échelonnée des six premiers AUV Alister 100 d’ici la fin de l’année 2013. Après l’actuelle phase de recette, l’état-major de la Marine devra prononcer l’admission au service actif de ce matériel avant de pouvoir l’utiliser en mission.

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11 juillet 2013 4 11 /07 /juillet /2013 07:20
Phoenix AUV Now Capable of Diving to 4,500 Meters

Jul 10, 2013 ASDNews Source : Phoenix International Holdings, Inc.

 

Phoenix International Holdings, Inc. announced that the company has taken delivery of their Bluefin-21 Autonomous Underwater Vehicle (AUV) after designer and manufacturer Bluefin Robotics completed a depth upgrade from a 1,500-meter to a 4,500-meter capability.

 

The Phoenix AUV is equipped with field-swappable acoustic  and optical payloads.  The acoustic payload section can concurrently operate a Reson 7125 multibeam (400kHz), Edgetech 2200-M side scan sonar (120/410 kHz), and Edgetech DW2-16 sub-bottom profiler (2-16 kHz) on 20 hour dives at speeds up to 3.5 knots.  The optical payload section can collect high resolution black and white imagery up to 3 frames per second using a Prosilica GE1900 camera system with 1920 x 1080 pixel resolution.  This highly capable and portable deep-water vehicle ships air freight to deploy on vessels of opportunity.  The average loadout specifications which include the AUV, mission support equipment, and lithium ion batteries consist of 20 pieces totalling 10,000 lbs. and occupies 1,000 cubic feet.

 

“We are quite pleased with this upgraded vehicle,” said Phoenix CEO, Mike Kutzleb. “And we’re ready to go to work.”

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30 mai 2013 4 30 /05 /mai /2013 16:50
Saab Wins Order for Underwater Vehicle

May 30, 2013 defense-unmanned.com

(Source: Saab AB; issued May 30, 2013)

 

Saab Receives Order for the Underwater Vehicle System AUV62

 

Defence and security company Saab has signed a contract on delivery of Autonomous Underwater Vehicle systems, AUV62, in training configuration. The order has a total value of MSEK 148 and system deliveries will take place during 2014.

 

The order comprises the supply of AUV62, the latest version of the Autonomous Underwater Vehicle in a configuration as training target for Anti-Submarine Warfare (ASW) training.

 

“The AUV62 is a competent and advanced system that will enhance and strengthen the customer’s underwater capabilities. We are of course very satisfied to have been able to secure yet another order for the system,” says Görgen Johansson, Senior Vice President and Head of Business Area Dynamics.

 

The AUV62 is an advanced and highly modern Autonomous Underwater Vehicle available in several different configurations and already selected by a number of customers.

 

Equipped with an acoustic payload it is an advanced and capable system for cost-efficient training of a navy’s ASW forces. The AUV62 is an artificial acoustic target that mimics a submarine in a way that is compatible with any torpedo- and sonar system on the market today. The AUV62 system fully replaces the use of a submarine in the role as a manoeuvring training target.

 

Equipped with a Synthetic Aperture Sonar (SAS) payload it is an efficient system for mine search, reconnaissance and seabed mapping. With the AUV62 Saab offers a state-of-the-art Autonomous Underwater System for demanding customers investing in the future.

 

The industry’s nature is such that depending on circumstances concerning the product and customer, information regarding the customer will not be announced.

 

 

Saab serves the global market with world-leading products, services and solutions ranging from military defence to civil security. Saab has operations and employees on all continents and constantly develops, adopts and improves new technology to meet customers’ changing needs.

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