Shock Mitigation Directory

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GPS - Global Positioning System

The Global Positioning System (GPS) is the basis of all electronic navigation systems. GPS information from satellites gives constant navigation updates on chart plotters.

GPS chart plotters show position plus 'speed over the ground' and 'distance to target'. This information can be integrated with radar and depth information on one display.

Radar - Radio Detection and Ranging

Radar is an object detection system that uses electromagnetic waves to identify the range, altitude, direction and speed of both moving and fixed objects.

The returning signal can be amplified through use of electronic techniques in the radar receiver to identify ships, aircraft, weather formations and land masses.

Depth Sounders - Underwater Imaging

Transducers are mounted internally or externally using single beam, dual beam and quad beam sonar to give a visual display of underwater features and hazards.

Sonar returns from these beams or waves measure depth below the craft. Using new technology the sonar can provide underwater side imaging and a view ahead.

AIS - Automatic Identification System

The Automatic Identification System (AIS) is a short range coastal tracking system used on ships and by Vessel Traffic Services (VTS) to electronically identify vessels.

Unique vessel identification, position, course and speed information can be displayed which allows maritime authorities to track and monitor vessel movements.

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