FAULT TOLERANT INTEGRATED NAVIGATION SYSTEM DEVELOPMENT PROGRAM

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N/A
Agency Tracking Number: 10154
Amount: $49,492.00
Phase: Phase I
Program: SBIR
Awards Year: 1989
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Shenandoah Systems Co
83 Washington St - Ste 405, Dover, NH, 03820
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 James Glynn
 (603) 742-6409
Business Contact
Phone: () -
Research Institution
N/A
Abstract
THE TOP LEVEL DESIGN AND SIMULATION OF A FAULT TOLERANCE, FAIL-SOFT INTEGRATED NAVIGATION SYSTEM IS PROPOSED. THE PROPOSED ARCHITECTURE CONSISTS OF A RING LASER GYRO, CORRELATION VELOCITY SPEED LOG, HEADING AND ATTITUDE SENSORS, KEEL DEPTH AND ALTITUDE SENSORS, AND A SHAFT TURNS-RATE SENSOR. AN EXTREMELY HIGH MEAN TIME BETWEEN FAILURE FIGURE IS EXPECTED TO RESULT FROM THE APPLICATION OF BOTH HARDWARE AND SOFTWARE FAULT TOLERANCE TECHNIQUES. THE SOFTWARE FAULT TOLERANCE TECHNIQUES INCLUDE THE DEVELOPMENT OF ROBUST DATA TRANSMISSION SOFTWARE, SOFTWARE VALIDITY ALGORITHMS, AND REDUNDANT POSITION COMPUTATION ALGORITHMS. REVERSIONARY MODES OF OPERATION ARE PLANNED TO ACCOMMODATE CONTINUED OPERATION IN THE FACE OF SENSOR FAILURES. THE PERFORMANCE OF THE SOFTWARE FAULT TOLERANCE SHALL BE VERIFIED THROUGH SIMULATION. CRITICAL NAVIGATION SENSORS SHALL BE REPLICATED AS REQUIRED.

* information listed above is at the time of submission.

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