Method and system for measuring the velocity of a vessel...

Details Method and system for measuring the velocity of a vessel... Method and system for measuring the velocity of a vessel...

2006-11-07

2006-11-07

Lobo, Ian J. (Department: 3662)

Communications, electrical: acoustic wave systems and devices

Echo systems

Speed determination

C367S089000

Reexamination Certificate

active

07133327

ABSTRACT:
A method and a system for measuring the velocity of a vessel relative to the bottom using a velocity measuring correlation sonar are disclosed. The present invention provides a new theoretical expression for the bottom medium sonar array temporal and spatial correlation function. The velocity of the vessel relative to the bottom is derived by fitting experimental data to a theoretical function. The bottom medium sonar array temporal and spatial correlation function of the present invention is succinctly expressed in zero-rank Bessel function, and well coincided with experiments. The function is applicable not only to far field region, i.e. planar wave region, but also to Fraunhofer region, i.e. spherical wave region. Transmit transducers and receive transducers are multistatic in the velocity measuring correlation sonar of the present invention, so the transmit beam width and the receive beam width can be selected reasonably. The present invention is applicable to measuring the velocity of the vessel relative to the bottom with high measurement accuracy, small calculation load, good robustness and fast convergence.

REFERENCES:
patent: 4244026 (1981-01-01), Dickey et al.
patent: 4635240 (1987-01-01), Geohegan et al.
patent: 4905209 (1990-02-01), Huang
patent: 5077700 (1991-12-01), Shaw et al.
patent: 5315562 (1994-05-01), Rowe
patent: 5339283 (1994-08-01), Gilmour et al.
patent: 5381384 (1995-01-01), Winje
patent: 5422860 (1995-06-01), Bradley et al.
patent: 6804167 (2004-10-01), Scoca et al.
patent: 1224503 (1999-07-01), None
patent: 2010232 (1994-03-01), None

Affiliated with

Also associated with

Rating

Method and system for measuring the velocity of a vessel... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and system for measuring the velocity of a vessel..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for measuring the velocity of a vessel... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3661330