Subsonus

Subsonus is a next-generation USBL/INS that provides high accuracy position, velocity and heading at depths of up to 1,000 metres.

Position Accuracy  0.1 m

Roll & Pitch  0.1 °

Acoustic Heading  0.3 °

Range & Depth  1,000 m

Subsonus is a miniature underwater acoustic positioning system that provides high accuracy position, velocity, and heading at ranges of up to 1000 metres. The USBL provides highly reliable tracking thanks to its advanced signal processing and unique hydrophone design. Subsonus also seamlessly operates as a modem capable of transmitting user data underwater.

 

 

Features

Industry Leading Hydrophone Array

Subsonus features an industry-leading eight-channel factory-calibrated hydrophone array. With the hydrophones, Subsonus is able to perform beamforming, offering exceptional multipath rejection in poor environments and higher accuracy measurements.


Dynamic Power and Signal Encoding

Subsonus dynamically adjusts its acoustic transmit power and signal encoding based upon its operating environment. This results in highly improved performance and reliability in difficult conditions.
 

Acoustic Heading

Subsonus features acoustic heading transfer technology that allows it to transfer high accuracy GNSS heading from the surface to a unit underwater. This allows underwater units to acheive high accuracy heading without a gyrocompass and with no susceptibility to magnetic interference.
 

Internal Speed of Sound Sensor

Subsonus has the ability to measure the speed of sound through water using a revolutionary new technique. This means that the system is self tuning and no extra equipment or user intervention is required to setup the system for optimal performance.
 

Fully Integrated Miniature Enclosure

Subsonus does away with the typical reliance on external equipment such as rack mount units, interface boxes or PCs. All processing is done internally inside the miniature titanium enclosure and the system connects through a single ethernet connection for data output. It features a web browser based user interface.
 

Acoustic Modem

Subsonus offers acoustic modem functionality, capable of rapidly transmitting third-party data via a TCP Network port from one subsonus to another.
 

Miniaturisation

Subsonus utilises modern high-end electronics and manufacturing techniques to miniaturise the physical components of the USBL system, without compromising on performance. Subsonus runs fully on the processor within the transceiver, and is accessible via a web browser, with no additional rack-mounted interface units or processing PCs.