GNSS positioning system Subonus

for ROVfor AUVsunderwater

Subsonus is a miniature underwater acoustic positioning system that provides high accuracy position, velocity, and heading at ranges of up to 1000 meters. 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. 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 achieve 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.