William D. O'Brien Jr's scientific contributions

Publication (1)

Article
An ultrasonic human-blood-flow velocity profile measurement method using time-domain correlation of consecutive echo pairs has been developed. The time shift between a pair of range gated echoes is estimated by searching for the shift that results in the maximum correlation. The time shift indicates the distance a group of scatterers has moved, fro...

Citations

... In this case, a large velocity distribution within the investigation window will greatly reduce the estimation accuracy. A compromise must then be found between these two conclusions (Foster, Embree, and O'Brien 1990). ...