GPS assisted torpedo recovery system

摘要

A method of locating an underwater based system, the method including determining the underwater based system's geo-location, encoding the underwater based system's geo-location for RF transmission, encoding the underwater based system's geo-location for acoustic transmission, and transmitting RF and acoustic signals containing the encoded geo-location to a receiving station. A locator for locating an underwater based system including a buoy, a global positioning system having an antenna and a receiver, an RF transmission system including an antenna and a transmitter, an underwater acoustic transducer, and a locator control unit adapted to determine the underwater based system's geo-location, encode the underwater based system's geo-location for RF transmission, encode the underwater based system's geo-location for acoustic transmission, and transmit RF and underwater acoustic signals containing the encoded geo-location.

主权项

1. A method of locating a plurality of water based systems, the method comprising:
each water based system determining its geo-location; each water based system encoding its geo-location for radio frequency transmission; each water based system encoding its geo-location for acoustic transmission; each water based system transmitting radio frequency and acoustic signals containing the encoded geo-location at a predetermined time, wherein the pre-determined times for each of the plurality of water based systems are selected using a time-division multiple access scheme using a synchronized time; repeating the determining, encoding, updating, and transmitting steps after pre-determined intervals; receiving the radio frequency and/or acoustic signals containing the encoded geo-location for each of the plurality of water based systems by a receiving station; decoding each of the plurality of water based systems' geo-location; retrieving each of the plurality of water based systems, wherein the step of determining each water based system's geo-location uses a global positioning system comprising an antenna and a receiver, wherein the synchronized time is based on information received through the global positioning system, and wherein the pre-determined intervals increase over time.