GeoSwath Plus Wide swath bathymetry and georeferenced side scan
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1 GeoSwath Plus Wide swath bathymetry and georeferenced side scan
2 GeoSwath Plus Wide Swath Bathymetry and co-registered georeferenced side scan system We maximise marine performance by providing the Full Picture Our mission We shall earn the respect and recognition for our dedication to provide innovative and reliable marine electronics that ensure optimal operation at sea. By utilising and integrating our technology, experience and competencies in positioning, hydroacoustics, communication, control, navigation, simulation, and automation, we aim to give our customers The Full Picture. The Full Picture yields professional solutions and global services that make a difference enabling you to stay ahead of the competition. Our philosophy Our success depends on the success of our customers. Actively listening to our customers and truly understanding their needs, and then translating these needs into successful products and solutions is central to achieving our goal. Our people are the key to our success and we empower them to achieve. Working together in a global network of knowledge, guided by our values, engenders innovation and world class performance. Every day we have to think a little differently, because every client is unique. We aspire to translate the imagination and dedication of our staff into successful technologies and solutions. Our commitment is to add value to your operations by providing you with The Full Picture.
3 GeoSwath Plus Features GeoSwath Plus is a Phase Measuring Bathymetric Sonar System. It simultaneously acquires swath bathymetry and side scan data. Its dual transducer configuration has a field of view of over 240º. The usable depth information is limited only by the strength of the signal scattered back from the seafloor, thus achieving a swath coverage of up to 12 times the water depth. GeoSwath Plus is a productive survey tool for the shallow water environment. Three different frequency versions are available, 125, 250 and 500 khz with depth performances of 200, 100 and 50 m respectively to match your survey requirements. The system can be deployed on dedicated survey vessels as well as on vessels of opportunity by use of versatile over-the-side, bow, moon pool or hull mount configurations. The standard system comprises a rugged sonar head and a dedicated deck unit including a PC running the GS+ software package. The software enables the system to undertake all tasks from data acquisition to the production of the final bathymetry and side scan data products. Interfaces to all major hydrographic survey software suites are also available. GeoSwath Plus offers a turn-key solution for bathymetry and side scan surveying. Versions of GeoSwath Plus for AUV and ROV deployment are available. The small size, low power consumption, standard interfacing and depth rating of up to 4000 m makes it the ideal choice as a survey payload sensor. GeoSwath Plus Compact offers small size and lightweight components and splash protection for deployment from small crafts. Ultra high resolution swath bathymetry IHO SP-44, special order compliant Co-registered geo-referenced side scan Frequency versions: 125, 250, 500 khz Up to 12 times water depth coverage 240º view angle Dual transducer set-up with versatile mounting options Full software solution included: data acquisition, calibration processing, presentation Interfaces to all standard peripheral sensors Interfaces to all customary software packages ROV and AUV versions with up to 4000 m depth rating Compact versions for deployment on small crafts Bathymetry data High resolution bathymetry data showing rocky outcrops Side Scan Data The same area showing the co-registered side scan data, which has been normalised using GeoTexture software. 1
4 Applications The wide swath coverage of up to 12 times water depth and the co-registered and geo-referenced side scan data makes GeoSwath Plus the ideal tool for shallow water survey environments. Typical applications such as hydrographic charting, dredging and inspection surveys to environmental assessment and habitat mapping make the system a proven and trusted solution with the global survey community. Shallow water hydrographic surveying Inspection of underwater infrastructures Detection and mapping of objects and debris Detailed dredging and construction surveys Environmental studies and habitat mapping Mapping of harbours, inland waterways and shipping channels Charting Bathymetry map of Plymouth, UK harbour approaches 2
5 Dredging survey Port maintenance and object detection in the Port of Trondheim, Norway. River Surveys Often a single pass is sufficient to map a river from bank to bank. NGU - Norwegian Geological Service. Environmental Side Scan data draped over the digital terrain model showing sediment infill into a Norwegian Fjord. NGU- Norwegian Geological Service. The data has been normalised using GeoTexture software. Environmental Sand wave fields in the vicinity of a planned harbour entrance Infrastructure survey Imaging of pillars and sediment features of a bridge crossing. The side scan data has been normalised using GeoTexture software. 3
6 Infrastructure survey Surveying Fremont Canal, Seattle, WA. The viewing angle of 240º and the wide seafloor coverage allow mapping of the waterway from the bottom to the surface in a single pass. The 40 m wide and 10 m deep canal links Salmon Bay and Lake Union. Environmental Habitat mapping of Posidonia sea grass meadows in the Mediterranean. Posidonia plays an important role for the marine ecosystem. Its presence is revealed in the geo-referenced side scan data, simultaneously obtained with the high resolution bathymetry data. Infrastructure survey Survey of supply pipelines in The Solent, linking the UK mainland to the Isle of Wight. The sandwaves indicate the presence of strong tidal currents, which are responsible for their part exposure. The GeoSwath Plus was used to produce a high resolution bathymetry map revealing the detailed position and measurements of the targets. Harbour Survey Surveying Hota Harbour, Chiba Prefecture, Japan. GeoSwath Plus is ideally suited for harbour and marine construction surveys as it can be mounted on any vessel of opportunity and delivers high resolution bathymetry and geo-referenced side scan data in a single pass. 4
7 System Configuration Deck unit and dual transducer head included Interfaces to all major peripheral sensors Motion compensation Sound velocity compensation Tide compensation Geo-referencing GPS Position and Heading tide information SVP sound velocity profiles GeoSwath Plus Deck Unit GeoSwath Plus Transducer V-Plate with MRU, MiniSVS sound velocity sensor and altimeter The GeoSwath Plus turn-key solution comprises a dual transducer head with versatile mounting options together with a deck unit containing the complete sonar electronics together with a high spec PC, running the GS+ software. The software provides full acquisition, calibration and data processing capabilities for producing the final bathymetry and side scan data products. All customary ancillary sensors can be directly interfaced. The rugged port and starboard transducers, available in three frequency options (125, 250, 500 khz), can be attached to a supplied sonar head assembly for boat over-the side or bow-mount options, which also can accommodate a range of ancillary sensors. Alternatively they can be deployed on bespoke boat hull mount assemblies. The compact deck unit contains the complete system electronics as well as a high spec PC. 5
8 GeoSwath Plus Compact The portable GeoSwath Plus Compact is designed for small craft operation. It comprises a modified dual transducer head and a splash protected deck unit, containing the complete sonar electronics, which are interfaced via an Ethernet connection to a laptop PC running the GS+ survey software. Optionally it can also be operated as a stand alone unit with splash proof monitor, keyboard and mouse. The head incorporates a port and starboard integrated transducer as well the required ancillary sensors and can be pre-calibrated. Due to its minimal size and weight of less than 17 kg including peripheral sensors it offers a truly portable solution. The deck unit is splash protected and operating from a 24 V power supply with only 40 W power consumption can be fitted onto the smallest of crafts. The system is available in all three frequency versions, 125, 250 and 500 khz. Compact turn-key system Truly portable, precalibrateable Splash protected deck unit - IP54 rated 24 VDC, 40 W operation Operated from laptop PC Pole adaptor MRU SVS 35 cm Dual Head Transducer GeoSwath Plus Compact Deck Unit 38 cm 6
9 GeoSwath Plus AUV and ROV GeoSwath Plus payloads with depth ratings of up to 4000 m can be readily integrated into any autonomous underwater vehicle (AUV) or Remotely Operated Vehicle (ROV). With data coverage of up to 12 times the vehicle s fly altitude and low power consumption GeoSwath Plus offers unsurpassed efficiency for all military and civil survey applications. The GeoSwath Plus AUV housing contains the sonar electronics together with a high-spec small form factor PC and memory for local data storage. Operating mode is either free running or via an interface to the AUV s control and peripheral sensors using Ethernet and serial connections. The small size of the port and starboard transducers allow them to be fixed in any suitable position on the vehicle. The GeoSwath Plus ROV module is connected to either a laptop PC or a deck unit on board the survey vessel via a transparent Ethernet link. Peripheral sensors are mounted on the vehicle and connected to the module by flying leads, thus giving full flexibility in the choice of location for maximum seabed coverage and low ambient acoustic noise. The included software package provides easy system set-up, full acquisition, calibration and data processing capabilities for producing the final charts, which include bathymetry map and side scan mosaic data products. Data collected with GeoSwath Plus 500 khz on Hafmynd ehf Gavia AUV Up to 4000 m depth rating Reliable bathymetry and side scan payload sensor Frequency versions 125, 250 and 500 khz Easy integration into all ROV and AUV through standard interfaces Compact and light Low power consumption (40 W operation, 20 W stand-by) Full software solution included 7
10 GeoSwath Plus Remus 100 The GeoSwath Plus 500 khz module for Remus 100 is the ideal combined swath bathymetry and side scan solution with accuracies exceeding IHO-44 Special Order specifications. The seabed coverage of up to 12 times the vehicles operating altitude combined with the low power consumption allows for longer mission duration with a very high efficiency, giving enhanced survey productivity. GeoAcoustics Ltd. and Hydroid Inc. are both Kongsberg Maritime companies. This integration combines the industry s most successful phase measuring bathymetric sonar with the world s most popular man-portable AUV. Through linking these two advanced technologies Kongsberg Maritime continues to bring the full subsea picture into sharper focus. Data collected with GeoSwath Plus 500 khz on Remus 100 Turn-key swath bathymetry and side scan AUV solution from Kongsberg Maritime 500 khz Up to 12 times fly height coverage Compact and light weight Low power consumtopn, 40 W operational, 20 W stand-by Full software solution included 8
11 GeoSwath Plus Software GeoSwath Plus is supplied with a complete software package for data acquisition, system calibration, data processing and generation of digital terrain models as well as side scan mosaics. Data quality control and visualisation are also an important part of the package. GeoSwath Plus can also be operated via Ethernet connection by third party hydrographic survey software. Data can be exported in most standard formats allowing it to be processed, visualised and incorporated into many processing streams. This includes the Generic Sensor Format, allowing CUBE processing algorithms to be applied. System set-up A graphical user interface helps to set-up GeoSwath Plus and its ancillary sensors for survey work. System calibration Automated area based patch test calibration makes it easy to calibrate the sonar system. Data processing A set of specific filters allows removal of outliers and noise before passing the bathymetry data on to the gridding process. Tidal, motion and sound velocity corrections are applied Full software package included with the system Complete system set-up and calibration, acquisition, processing, visualisation, production of digital terrain models and side scan mosaics Interfaces to all major acquisition and processing packages Windows based, XP and Vista Data visualisation Digital terrain models and side scan mosaics can be visualised and assessed using a range of tools including 3D views. 9
12 Sonar Technology The GeoSwath Plus is a Phase Measuring Bathymetric Sonar System. It simultaneously acquires swath bathymetry and side scan data. Its dual transducer configuration has a field of view of over 240º. The usable depth information is limited only by the strength of the signal scattered back from the seafloor, thus achieving a swath coverage of up to 12 times water depth. Each transducer array is comprised of five ceramic staves; one to transmit and four to receive. After transmission one of the receive stave registers the amplitude of the signal scattered from the seafloor and uses this to produce true digital side scan data. The phase of the sonar signal on the four receive staves is used to determine the angle of arrival of the sonar signal. The range is determined from the two-way travel time. This range and angle gives a depth measurement. Many thousands of range-angle pairs are collected for each ping, giving the very high data density seen in GeoSwath Plus raw data. The phase measuring algorithm determines the direction of the returning sound with an angle resolution of a fraction of a degree (c. 0.03º). The range (found from the timing) is measured to millimetre accuracy. Over 40 amplitude, range and angle samples are collected per metre slant range. This performance allows the sonar system to exceed the accuracy required by the latest IHO standards for bathymetric surveying. Features Ultra high resolution swath bathymetry IHO SP-44, special order Co-registered geo-referenced side scan Frequency versions: 125, 250, 500 khz Up to 12 times water depth coverage 240º view angle Dual transducer set-up with versatile mounting options Full software solution included: data acquisition, processing, presentation Interfaces to all customary peripheral sensors Interfaces to all customary software packages e d c b a transducer 10
13 Technical specifications GeoSwath Plus 125 khz 250 khz 500 khz max Water Depth Below Transducers 200 m 100 m 50 m max Swath Width 780 m 390 m 190 m max Coverage up to 12 x depths Depth Resolution 6 mm 3 mm 1.5 mm Two Way Beam Width (Horizontal) 0.85º 0.75º 0.5º Transmit Pulse Length 128 μs to 896 μs 64 μs to 448 μs 32 μs to 224 μs max Swath Update Rate Transducer Dimensions (single) Transducer Weight (single) 30 per second (range dependant) 540 x 260 x 80 mm 375 x 170 x 60 mm 255 x 110 x 60 mm 11.6 kg (in air) 3.3 kg (in water) 3.8 kg (in air) 1.8 kg (in water) 1.5 kg (in air) 0.5 kg (in water) Deck Unit Dimensions 490 x 430 x 280 mm GeoSwath Plus Compact Dual Head Transducer Dimensions Transducer Head Weight incl. peripheral sensors Deck Unit Dimensions Power Requirements Deck Unit IP Rating Control Interface 125 khz 250 khz 500 khz 390 x 520 x 220 mm 360 x 352 x 150 mm 330 x 109 x 75 mm 24 kg 20 kg 16.8 kg 380 x 300 x 220 mm 24 VDC, 40 W IP54 - Splash protected Laptop via Ethernet or Touch Screen Control (optional) 11
14 Technical specifications GeoSwath Plus AUV 125 khz 250 khz 500 khz Power Requirements Max Depth Rating Electronic Module Size Electronic Module Weight Data Storage/Retrieval Mission Endurance Interface to AUV 24 VDC, 40 W (at max ping rate), 20 W (standby). standard 1000 m optional up to 4000 m 20 cm OD x 36.6 cm long, bespoke 12 kg (in air), 3 kg (in water). min. 120 GB hard drive, 10/100/1000 BaseT Ethernet link 12 hour data collection Ethernet (2 x 1 Gbit Ethernet ports available), RS232 for ancillaries GeoSwath Plus ROV 125 khz 250 khz 500 khz Power Requirements Max Depth Rating Electronic Module Size Electronic Module Weight Data Storage/Retrieval 24 VDC, 40 W (at max ping rate), 20 W (standby). standard 1000 m optional up to 4000 m bespoke approx. 12 kg (in air), 3 kg (in water). (1000 m rating) min. 120 GB hard drive in module, 10/100/1000 BaseT Ethernet link GeoSwath Plus REMUS khz Power Requirements Max Depth Rating Electronic Module Size Electronic Module Weight Data Storage/Retrieval Mission Endurance Interface to Remus AUV 24 VDC, 40 W (at max ping rate), 20 W (standby). GeoSwath Plus module: 1000 m, REMUS 100: 100 m 20 cm OD x 36.6 cm long. 12 kg (in air), 3 kg (in water). min. 120 GB hard drive, 1 GbE Ethernet link 12 hour data collection Ethernet (2 x 1 Gbit Ethernet ports available), RS232 for ancillaries GeoAcoustics Ltd is engaged in continuous development of its products, and reserves the right to alter the specifications without further notice 12
15 We are always there, wherever you need us GeoAcoustics customer service is designed to provide high-quality, global support, whenever and wherever it is needed. We are committed to providing easy access to support and service, and to responding promptly to your needs. GeoAcoustics support activities are supervised from our headquarters in the United Kingdom, with service centres at strategic locations around the globe. As part of our commitment to total customer satisfaction, we offer a wide variety of services to meet the operational needs. Global and local support We provide global support from local service and support facilities at strategic locations world wide. GeoAcoustics offers 24 hour support Solid competence reduces cost We have always recognised the importance of supporting our products and systems with professional training. A range of courses are therefore offered to ensure that you achieve the goal of full system utilisation with safe and efficient operation. Upgrading that pays Product and system upgrades can improve your vessel operations and reduce your overall maintenance costs. We will ensure that existing products and systems can be extended or upgraded based on standard upgrade kits. Support 24 Call support@geoacoustics.com
16 WORLD CLASS - through people, technology and dedication GeoAcoustics A Kongsberg Company / / Printed by COPY-STAR / Basic design by Anisdahl, Sand and Partners sales@geoacoustics.com Telephone:
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