4D VELOCITY SENSOR DEVELOPMENT

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$250,000.00
Award Year:
1992
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Agency Tracking Number:
13466
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
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Steve Bradley
(619) 693-1178
Business Contact:
() -
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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