Gaps M7

Pre-calibrated USBL positioning system

Gaps M7 is a high performance Ultra Short Baseline positioning and communication system for locating and communicating subsea assets. It combines an USBL antenna and a fiber-optic inertial navigation system (INS) in the same housing. USBL calibration on the field is not required anymore.Its unique 3D acoustic array enables tracking and communication from the deep sea to extremely shallow water, and even at angles above horizontal.

Exail

Saint Germain en Laye, FR

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Description

Gaps M7 is a high performance Ultra Short Baseline positioning and communication system for locating and communicating subsea assets. It combines an USBL antenna and a fiber-optic inertial navigation system (INS) in the same housing. USBL calibration on the field is not required anymore. Advanced acoustic techniques including wideband signals ensure maximum performance in most difficult conditions. Its unique 3D acoustic array enables tracking and communication from the deep sea to extremely shallow water, and even at angles above horizontal.

BENEFITS

Rapid deployment
Operational cost savings
Pre-calibrated
Easy to install
Easy to operate
Accurate positioning
Robust performance
Flexible deployment operations
Horizontal tracking
Wireless subsea communication with beacons

FEATURES

Compact, all-in-one INS and USBL communication solution
High grade INS for ultimate performance
Provide absolute georeferenced position for the beacon
Compatible with all major navigation suites
Easy interface with subsea INS (Exail and third party)
DP mode : L/USBL/INS (PRS, MRU & Gyro in one equipment)
More than 500 available acoustic channels• Unified Exail web interface• 3D display software included (DELPH RoadMap)
3D acoustic array geometry
Wideband modulation
iUSBL (optional)

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Specifications

Physical properties of transducer head: Diameter [mm]

296

Height [m]

638

Min. external power [Voltage]

24

Max. external power [Voltage]

231

Max power consumption [W]

30

System Parameters: Max. operation range {m}

4000

Frequency {kHz}

MF

Min. operation range {m}

5

Angle accuracy (degr) @ 20 dB

0.03

Spread spectrum technology

Y

Operation beam angle {deg}

200

Number of active elements

40

Number of transponder channels

500

LBL-functionality

Y

Focussed beam forming

N

Horizontal accuracy (in % of the water depth)

0.06

Multi user functionality

Y

Motion compensation: Motion sensors compatible to the system:

Not needed, INS inside

Interfaces: Compatible hardware

Third-party transponders and DP Systems

Inertial interfacing

Y

Compatible software

QINSY, HIPACK, NAVIPAC, PDS

Speed of sound: Ray tracing

Y

Real-time integration of SV-profile

Y

Deployment: Inside deployment pole available

Y

Outside deployment pole available

Y

Diam gate valve {mm}

350

Recommended distance below keel {m}

1.5

Mounting and deployment: Mounting

Hull mounted & Portable

Retractable

N

Used Sonar Methods: Type of system

Omndirectional

More information: Distinguishable features

Ultimate performances for shallow and deep water operation, calibration free, shallow water tracking, permanent installation, third party friendly, easy to install operate and repir for cost-efficiency