Overview
Available in two configurations (hull or pole mounted), Posidonia is an ultra-short baseline (USBL) acoustic positioning system dedicated to highly accurate and ultra–long range tracking of subsea vehicles. It offers enhanced performances with a new electronic cabinet (USBL-Box) including the most recent iXblue acoustic signal processing capabilities and full compatibility with Ramses synthetic baseline positioning system.
Specifications
Main performances
Accuracy
0.1
% slant range
Operating
range
>10,000
Meters
>10,000
Meters
Antenna
aperture
70/100
aperture
70/100
deg
Operating
frequency
8-18
frequency
8-18
kHz
Main performances
Posidonia (Deployable antenna Pole mounted) |
Posidonia (Flush antenna Hull mounted) |
||
![]() |
![]() |
||
Range nominal (M) | 10,000 | 10,000 | |
Accuracy (% x range) | 0.1 | 0.1 | |
Operating frequency (kHz) | 8~18 | 8~18 | |
Antenna aperture (deg) | 70 | 100 | |
Data telemetry | no | no | |
Material | Stainless steel | Stainless steel | |
Size (mm) | Ø 580 x 420 | Ø 800 x 320 | |
Related transponder | iXblue LF range | iXblue LF range |
Benefits
- Deep tow operations with no need for second tracking vessel
- High-performance even in extremely adverse conditions
- Added flexibility and better performance
- Simple to deploy and operate
Features
- Extreme long-range beyond 10,000 m and 0.2% of slant distance accuracy
- Low frequency band, full wideband, robust to noise and multipath
- Smoothly interfaces with iXblue positioning building blocks (INS, Ramses, motion sensors)
- Full Ethernet and iXblue web-based user interface
Downloads
Applications

- Deep towfish tracking

- AUV, ROV and any deep sea vehicle tracking

- Pipe / cable laying operations