System and method for acoustic Doppler velocity processing...

Communications – electrical: acoustic wave systems and devices – Echo systems – Speed determination

Reexamination Certificate

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Reexamination Certificate

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07542374

ABSTRACT:
A system and method for measuring velocity in a fluid medium utilizing a phased array transducer are disclosed. The phased array transducer comprises a plurality of transducer elements arranged to form a single two-dimensional array. In one aspect, the method comprises receiving echoes of a plurality of beams generated by the transducer, calculating raw velocity estimates based at least in part on the echoes, and removing substantially a bias related to a first velocity from the raw velocity estimates. The first velocity is orthogonal to the face of the two-dimensional array.

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