The Mobile Acoustic Scoring System (MASS) is a free-floating buoy system that 'metOcean telematics' developed to enable warships to undertake self-conducted naval gunfire support (NGS) training exercises. The use of simulation technology allows naval vessels greater training flexibility and effectiveness. MASS consists of a set of operational buoys, which report acoustic event data, buoy position (GPS location) and precise time (to 150 microseconds), as it relates to the fall of shot.
The system is functional with a minimum of three buoys, but between five and seven buoys are typically deployed, depending on customer requirements.
A spread spectrum radio transmits the data associated with a specific event to a base station receiver, located either on the ship that fired the shells or on a consort. This base station receiver, which consists of a personal computer and radio transmitter, receives, processes, and calculates the data, and displays where the shell landed relative to a chosen target point. This data provides real-time feedback accuracy of the gunfire.
This system has been designed to be portable and free-floating, therefore, gunnery exercises can be positioned anywhere. The entire system is very portable and can be easily handled by two personnel. Alternatively, the buoys have mooring options based on the length of time they are required to stay in the water, how frequently the buoys are exchanged, and movement tolerances during the training, will be considerations.