MicronNav System
0656-SOM-00001-07 8 © Tritech International Ltd.
2. Technical Specification
2.1. System
Positioning Technology Spread Spectrum Acoustic Ultra Short Baseline (USBL) Range/
Bearing Tracking System. 20-28 kHz band. (Magnetic Compass
and Pitch/Roll Sensor built into Dunking transducer as standard)
Tracking Range 500m (1,640ft) typical Horizontal, 150m (492ft) typical Vertical.
Range is dependent on a variety of operating conditions:
• The presence of thermoclines
• The presence of acoustically reflecting surfaces within the
operating environment
• Ambient noise
• Salinity
• Volume reverberation
• Surface and seabed reflectivity
Range Accuracy +0.2 metre (7.87 inches) system timing accuracy – assuming
correct Velocity of Sound.
Bearing Accuracy +/-3 degrees (equates to better than +5% of slant range)
Position Update Rate 0.5 Seconds – 10 Seconds
Targets Tracked Maximum 1 Responder and 15 Transponders
Data Display Plan Position Indicator (PPI) display and optional user bitmap
chart display
Data Recording All Data recorded in standard Seanet Format for Replay or
Analysis
Surface Navigation NMEA 0183 GPS and Heading/Attitude Sensors supported.
Position of Surface vehicle displayable.
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