4D VELOCITY SENSOR DEVELOPMENT

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N/A
Agency Tracking Number: 13466
Amount: $250,000.00
Phase: Phase II
Program: SBIR
Awards Year: 1992
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Rd Instruments
9855 Businesspark Ave, San Diego, CA, 92131
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Steve Bradley
 (619) 693-1178
Business Contact
Phone: () -
Research Institution
N/A
Abstract
THE PURPOSE OF PHASE I OF THIS PROPOSED PROJECT IS TO CONDUCT RESEARCH TO ESTABLISH THE FEASIBILITY OF DEVELOPING A 4D VELOCITY SENSOR FOR SUBSURFACE AND SURFACE VESSEL NAVIGATIONAL USE IN A WIDE RANGE OF OCEANOGRAPHIC APPLICATIONS. THE SENSOR WILL EMPLOY ACOUSTIC CORRELATION VELOCITY LOG (CVL) TECHNOLOGY TO DETERMINE THE TRUE "EARTH FRAME" VERTICAL AND HORIZONTAL COMPONENTS OF SENSOR VELOCITY AS A FUNCTION OF TIME BY CORRELATING THE ECHOES RETURNED FROM THE SEABED. THE NOVEL APPROACH PROPOSED IS THE USE OF A DUAL FREQUENCY CVL TO ACHIEVE HIGH ACCURACY OVER A WIDE RANGE OF OPERATIONAL ALTITUDES (10 TO 20,000 FEET). THE ALGORITHM APPROACH AND THEORETICAL EQUATIONS FOR DETERMINING THREE-AXIS VELOCITY, AS WELL AS A STUDY OF THE RANDOM AND BIAS ERRORS ASSOCIATED WITH THE CVL WILL BE INVESTIGATED. A CONTROLLED TEST USING RD INSTRUMENT'S EXISTING OPERATIONAL 75 KHZ CORRELATION SONAR WILL BE CONDUCTED TO VALIDATE THE THEORETICAL PREDICTIONS.

* information listed above is at the time of submission.

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