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Product Name:GAPS
Product 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.
Date of first release:
Mounting and deployment 
Mounting:Hull mounted & Portable
Physical properties of transducer head 
Diameter [mm]:296
Height [m]:0.638
Min. external power [Voltage]:
Max. external power [Voltage]:
Max power consumption [W]:30
Used Sonar Methods 
Type of system:USBL with built in INS
System Parameters 
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
Horizontal accuracy (in % of the water depth):0.06
Vertical accuracy (in % of the water depth):0.06
Focussed beam angle {degr}:
Number of active elements:4
Number of transponder channels:
Multi user functionality:Y
Speed of sound 
Ray tracing:Y
Real-time integration of SV-profile:Y
Motion compensation 
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
Dimensions {mm}:
Dry weight {kg}:
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
Maintenance criteria 
Mean time before failure [hr}:
Mean time to repair [hr]:
More information 
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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Supplier Information
  • iXblue

  • 34, rue de la croix de fer -
  • 78100 Saint Germain en Laye
  • France



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