Acoustic correlation current profiler

• Published in: IEEE journal of oceanic engineering Vol. 16; no. 4; pp. 408 - 414
• Main Authors: Bradley, S.E., Deines, K.L., Rowe, F.D.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01-10-1991; Institute of Electrical and Electronics Engineers
• Subjects: Acoustic beams; Acoustic measurements; Acoustic pulses; Acoustic scattering; Acoustic testing; Acoustic transducers; acoustics; Doppler sonar; Earth, ocean, space; Exact sciences and technology; External geophysics; Frequency; Geometry; Geophysics. Techniques, methods, instrumentation and models; intercomparison; Marine; Sonar; Transmitters; velocity profilers; Experience; Acoustic device; Instruments; System performance; Sea current; Sonar; Cross correlation; Current meter; Correlation function; System analysis
• ISSN: 0364-9059; 1558-1691
• DOI: 10.1109/48.90906

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.< >