Method for determining ocean current and associated device

Details Method for determining ocean current and associated device Method for determining ocean current and associated device

2007-01-09

2007-01-09

Pihulic, Dan (Department: 3662)

Communications, electrical: acoustic wave systems and devices

Echo systems

Speed determination

Reexamination Certificate

active

10468172

ABSTRACT:
The invention relates to a method for determining ocean current using geophysical data acquisition means which are on board a ship, said ship towing at least one streamer which is equipped with at least one traction sensor and position measuring means. The invention is characterized in that it comprises the following steps, consisting in: collecting the measurements from said traction sensor, collecting the measurements from said position measuring means, repeatedly calculating a current vector that is representative of the real current by repeating the following operations using a given sampling time step: calculating simulated traction and streamer positioning data for numerous simulation input current vectors, comparing the simulated data to real measurements taken by said traction and position measuring means for each simulation input current vector. The invention also relates to a device used to carry out one such method.

REFERENCES:
patent: 4068208 (1978-01-01), Rice
patent: 5921713 (1999-07-01), Gjessing et al.
patent: 6111817 (2000-08-01), Teeter
patent: 2004/0114466 (2004-06-01), Alliot
patent: 1031855 (2000-08-01), None
patent: WO 00 20895 (2000-04-01), None
patent: WO002065156 (2002-08-01), None

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