Multifan survey system and method
AssigneeR2Sonic, LLC
InventorsJens Steenstrup, Christopher Tiemann, Mark Chun, Kirk Hobart
Life of this patent
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Abstract
A survey system including a multibeam echo sounder having a single projector array and a single hydrophone array constructs a multi-component message for ensonifying multiple fans and deconstructs a corresponding message echo for use in analyzing the returns from each fan.
Claims18
A survey system for performing a multifan bathymetric survey, the survey system including a multibeam echo sounder system for installation on a water going vehicle, the survey system comprising:
- an acoustic transceiver for use with one or more transducers in a single projector array and plural transducers in a single hydrophone array;
- the single projector array and said hydrophone array in a Mills Cross arrangement;
- a transceiver transmitter for generating a message including N>=3 coded message components configured to simultaneously ensonifying three or more respective fans on a waterbody bottom using the single projector array;
- a transceiver receiver having a receiver operating frequency range, the receiver for receiving returns from the ensonified fans that overlap in time and frequency;
- N matched filters in the receiver, each matched filter selectively detecting a respective fan return out of the three or more respective fans and the operating frequency range of the receiver including a message component frequency band;
- wherein the message components overlap in time and frequency.
A survey system for performing a multifan bathymetric survey, the survey system including a multibeam echo sounder system for installation on a water going vehicle, the survey system comprising:
- an acoustic transceiver for use with a projector array and a hydrophone array;
- the projector array and the hydrophone array in a Mills Cross arrangement;
- a transceiver transmitter for generating a message including N>=3 coded message components configured to simultaneously ensonifying three or more respective fans on a waterbody bottom using the single projector array;
- a transceiver receiver having a receiver operating frequency range, the receiver for receiving returns from the ensonified fans that overlap in time and frequency;
- N matched filters in the receiver, each matched filter selectively detecting a respective fan return and
- the operating frequency range of the receiver including a message component frequency band;
- wherein the coded message components overlap in time and frequency.
Dependencies are inferred from the claim text.