Distributed underwater electromagnetic communication system
First Claim
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1. An underwater communication system comprising:
- a first transmitter and/or first receiver for transmitting and/or receiving electrical signals;
a first elongate transducer electrically insulated from the water and coupled to said first transmitter and/or first receiver;
a second transmitter and/or second receiver for transmitting and/or receiving electrical signals; and
a second elongate transducer electrically insulated from the water and coupled to said second transmitter and/or second receiver;
wherein said first elongate transducer is operable to provide both near-field electromagnetic coupling of said electrical signals to said second elongate transducer and conveyance of said electrical signals along its path from said first transmitter and/or to said second receiver and said first and second elongate transducers have a length that is more than the maximum distance over which said underwater electromagnetic coupling occurs.
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Abstract
An extended underwater electromagnetic transducer is provided with an electrically insulated transmission line typically connected to a transmitter or receiver or transceiver system. The transmission line allows near-field communications with another transmitter or receiver or transceiver system. The transmission line provided is relatively long, the through water signal path length can be significantly reduced.
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Citations
8 Claims
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1. An underwater communication system comprising:
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a first transmitter and/or first receiver for transmitting and/or receiving electrical signals; a first elongate transducer electrically insulated from the water and coupled to said first transmitter and/or first receiver; a second transmitter and/or second receiver for transmitting and/or receiving electrical signals; and a second elongate transducer electrically insulated from the water and coupled to said second transmitter and/or second receiver; wherein said first elongate transducer is operable to provide both near-field electromagnetic coupling of said electrical signals to said second elongate transducer and conveyance of said electrical signals along its path from said first transmitter and/or to said second receiver and said first and second elongate transducers have a length that is more than the maximum distance over which said underwater electromagnetic coupling occurs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification