Title :
Acoustic correlation current profiler
Author :
Bradley, Steven E. ; Deines, Kent L. ; Rowe, Francis D.
Author_Institution :
RD Instrum., San Diego, CA, USA
fDate :
10/1/1991 12:00:00 AM
Abstract :
An acoustic correlation current profiler (ACCP) system is being developed to obtain vertical profiles of current velocities to ranges of approximately 1500 m. A single transmitter and a spatial array of eight receivers arranged in a novel geometry are employed to measure water mass displacement from receiver array cross-correlation functions. Test data from a shallow water ACCP operating at 76.8 kHz are presented and compared to model predictions as well as to velocity profiles obtained simultaneously during the tests from an adjacent acoustic Doppler current profiler. Additionally, predicted performance data for a lower frequency deep-water unit are presented
Keywords :
oceanographic equipment; sonar; ultrasonic equipment; underwater sound; velocity measurement; 1500 m; 76.8 kHz; US; acoustic correlation current profiler; current velocities; deep-water unit; ocean; receiver array cross-correlation functions; shallow water; sonar; vertical profiles; water mass displacement; Acoustic beams; Acoustic measurements; Acoustic pulses; Acoustic scattering; Acoustic testing; Acoustic transducers; Frequency; Geometry; Sonar; Transmitters;
Journal_Title :
Oceanic Engineering, IEEE Journal of
