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HiPAP - Acoustic underwater positioning and navigation systems

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HiPAP models overview

System
HiPAP 502 HiPAP 452 HiPAP 352 HiPAP 351P HiPAP 102
Transducer outline
HiPAP 502 HiPAP 452 HiPAP 352 HiPAP 351P HiPAP 102
Number of active elements
241 46 46 46 31
Max/recommended acoustic operating area below vessel
200º / 200º 160º / 120º 160º / 120º 160º / 120º 120º / 120º
Minimum gate valve size required
20 in / 500 mm 20 in / 500 mm 14 in / 350 mm - 20 in / 500 mm
Transducer diameter
400 mm 400 mm 320 mm 345mm 460 mm
Angular accuracy* of X/Y directions (1 sigma figure)
20dB S/N:0,06º
10dB S/N:0,10º
0dB S/N:0,30º
20dB S/N:0,10º
10dB S/N:0,15º
0dB S/N:0,40º
20dB S/N:0,10º
10dB S/N:0,15º
0dB S/N:0,40º
20dB S/N:0,18º
10dB S/N:0,23º
0dB S/N:0,40º
20dB S/N:0,14º
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-
Accuracy dual mode operation, two-TD system*
20db S/N:0.042º - - - -
Narrow pointing receiver beam
10º 15º 15º 15º 15º
Operating range*
1 - 5000 m 1 - 5000 m 1 - 5000 m 1 - 4000 m 1 - 10000 m
Number of transponder channels, CW / Cymbal
56 / 500+ 56 / 500+ 56 / 500+ 56 / 500+ 30 / 50
Frequency band
21 - 31 kHz 21 - 31 kHz 21 - 31 kHz 21 - 31 kHz 10 - 15 kHz
Range detection accuracy*
0.02 m 0.02 m 0.02 m 0.02 m 0.02 m
Hull unit for automatic transducer deployment through hull
Available AvailableAvailable - Available
* Position accuracy [°] can be calculated by √(X2 + Y2). Values are based on; use of Cymbal mode, free line of sight from transducer to transponder, no influence from ray bending, Signal to Noise ratio as specified in water in the 250 Hz receiver band, no error from heading/roll/pitch sensors. Operating ranges are typical and conservative, and are assumed by using Kongsberg Transponders with sufficient source level.
All HiPAP 351P models includes attitude sensors with different accuracies. HiPAP 351P includes MRU-H, HiPAP 351P-5 includes MRU-5, HiPAP 351P-MGC includes MGC IMU and HiPAP 351P-I includes HG9900 IMU.

NOTE

It is very important to use transponders with strong enough output source level to obtain the highest S/N ratio and thereby also the best SSBL accuracy.

Key HiPAP features

  • Unique spherical transducer design with up to 241 individual elements
  • Extraneous noise suppression techniques
  • Extremely narrow, ±5 degree listening beams
  • Extreme tracking range capabilities
  • True Multi-User LBL function
  • Comprehensive transponder range to support positioning operations
  • Reference output to dynamic positioning system

A wide range of applications

HiPAP is a family og hydroacoustic Super Short Base Line - SSBL or USBL, underwater positioning system, able to operate in shallow and deepwater areas to proven ranges to about 5000+ meters (MF) and 10000 meters (HiPAP10x - LF). It is a multi-purpose system used for a wide range of applications including towfish & towed platform tracking, seabed reference Dynamic Positioning of a vessel, high accuracy subsea metrology and positioning and telemetry and scientific research. Optional enhanced operation is available with Hydroacoustic Aided Inertial Navigation - HAIN. The HAIN system increases the HiPAP SSBL positioning accuracy by a factor of up to 300%.

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