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GAPS

Gaps is a high performance Ultra Short Baseline positioning system for locating subsea assets. It combines an USBL antenna and a fiber-optic inertial navigation system (INS) in the same housing. USBL calibration on the eld is not required anymore. A

iXblue
34, rue de la croix de fer /
78100 Saint Germain en Laye
France
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Description

Gaps is a high performance Ultra Short Baseline positioning system for locating subsea assets. It combines an USBL antenna and a fiber-optic inertial navigation system (INS) in the same housing. USBL calibration on the eld is not required anymore. Advanced acoustic techniques including wideband signals ensure maximum performance in most difficult conditions. Its unique 3D acoustic array enables tracking from the deep sea to extremely shallow water, and even at angles above horizontal.

Specifications

  • Mounting
    Hull mounted & Portable
  • Retractable
    Y
  • Diameter [mm]
    296
  • Height [m]
    0.638
  • Max power consumption [W]
    30
  • Type of system
    USBL with built in INS
  • Frequency {kHz}
    30.5
  • Spread spectrum technology
    Y
  • Min. operation range {m}
    0
  • Max. operation range {m}
    4000
  • Operation beam angle {deg}
    200
  • Angle accuracy (degr) @ 20 dB
    0.03
  • Focussed beam forming
    N
  • Number of active elements
    4
  • Multi user functionality
    Y
  • LBL-functionality
    Y
  • Horizontal accuracy (in % of the water depth)
    0.06
  • Vertical accuracy (in % of the water depth)
    0.06
  • Ray tracing
    Y
  • Real-time integration of SV-profile
    Y
  • Motion sensors compatible to the system:
    Built in INS
  • Required pitch uncertainty [deg}
    0.01
  • Required roll uncertainty [deg]
    0.01
  • Required heave uncertainty [m]
    0.025
  • Compatible hardware
    NMEA0183: Ethernet (TCP, UDP) Serial communication (RS232, RS422/485)
  • Compatible software
    Embedded web-MMI for the configuration DelphRoadMap provided for the 2D and 3D visualization of the positions Compatible with all navigation software (QINSY, NAVIPAC, HYPACK, WINFROG, STARFIX…)
  • Real-time access procedure
    Ethernet and serial for data output Web user interface for control/command
  • Inertial interfacing
    Y
  • Depth rating {m}
    6000
  • Additional functions
    Simultaneous communication and positioning
  • Inside deployment pole available
    Y
  • Diam gate valve {mm}
    400
  • Outside deployment pole available
    Y
  • Recommended distance below keel {m}
    1
  • Distinguishable features
    - iXBlue GAPS integrates USBL, high grade INS, real-time positioning and GPS. - Cost and time-saving deployment: flexible, portable, pre-calibrated, rapid and simple.

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