HIGH RESOLUTION COHERENT ACOUSTIC DOPPLER CURRENT PROFILER

Award Information
Agency: Department of Defense
Branch: Defense Advanced Research Projects Agency
Contract: N/A
Agency Tracking Number: 6326
Amount: $49,910.00
Phase: Phase I
Program: SBIR
Awards Year: 1987
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
9855 Businesspark Ave, San Diego, CA, 92131
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 FRANCIS ROWE
 (619) 693-1178
Business Contact
Phone: () -
Research Institution
N/A
Abstract
THIS RESEARCH AND DEVELOPMENT PROJECT WILL STUDY THE FEASIBILITY OF DEVELOPING A HIGH RESOLUTION COHERENT ACOUSTIC DOPPLER CURRENT PROFILER (HRCADCP) SUITABLE FOR MEASURING PROFILES OF 3-AXES VELOCITY OVER SHORT RANGES WITH HIGH ACCURACY, SPATIAL RESOLUTION AND SAMPLING RATE. CAPABILITY FOR MEASURING CURRENT PROFILES FROM THE OCEAN'S SURFACE TO A 1-METER DEPTH WITH VELOCITY ACCURACY OF ORDER A FEW MM/S, SPATIAL RESOLUTION OF A FEW MM AND SAMPLING RATES OF ABOUT 10 HZ WILL BE SOUGHT. THE PROPOSED APPROACH USES A BISTATIC PULSECOHERENT ACOUSTIC DOPPLER SYSTEM WHICH UTILIZES AN ARRAY OF FOUR RECEIVER ASSEMBLIES TO MEASURE DOPPLER FREQUENCIES FROM ECHOES SCATTERED FROM THE WATERMASS VOLUME ENSONIFIED BY A SINGLE TRANSMIT TRANSDUCER AT THE CENTER OF THE ARRAY. THE PRIMARY OBJECTIVES OF PHASE I ARE TO ANALITICALLY DEFINE AND QUANTIFY THE SOURCES OF ERROR IN THE MEASURMENT PROCESS, TO EXPLORE THE RELATIVE MERITS AND PERFORM-ANCE OF ALTERNATIVE SYSTEM GEOMETRIES AND SIGNAL PROCESSING SCHEMES, AND TO CONDUCT AN EXPERIMENT TO EVALUATE THE PRACTICAL FEASIBILITY AND PERFORMANCE OF SYSTEM.

* Information listed above is at the time of submission. *

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