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AUTOMATED CLASSIFICATION AND DETECTION OF SONAR SIGNALS USING A PATTERN RECOGNITION EXPERT SYSTEM

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N/A
Agency Tracking Number: 10325
Amount: $49,132.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Timeline
Solicitation Year: N/A
Award Year: 1989
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
5739 Bridle Path Ct
Montgomery, AL 36116
United States
DUNS: N/A
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 John Foster
 (919) 852-3692
Business Contact
Phone: () -
Research Institution
N/A
Abstract

THE GOAL OF THIS RESEARCH PROJECT IS THE DEVELOPMENT OF A PATTERN RECOGNITION EXPERT SYSTEM FOR AUTOMATED CLASSIFICATION AND DETECTION OF SONAR SIGNALS. THE EXPERT SYSTEM WILL BE COMPOSED OF TWO PARTS: I) FRONT END SIGNAL PROCESSING SYSTEM TO EXTRACT POWER SPECTRUM PARAMETERS, AND II) AN EXPERT SYSTEM WHICH WILL MAKE DECISIONS ON THE POWER SPECTRUM PARAMETERS BASED UPON A RULE-BASED LIBRARY. THE ULTIMATE GOAL OF THIS EFFORT IS AN AUTOMATED SYSTEM WHICH CAN DETECT AND CLASSIFY BOTH ACTIVE AND PASSIVE SONAR SIGNALS IN NOISY ENVIRONMENTS (LESS THAN -10 DB SNR). BASED UPON PRELIMINARY WORK IN THIS AREA, AN EXPERT SYSTEM HAS BEEN PREVIOUSLY DEVELOPED WHICH CAN EFFECTIVELY DETECT NARROWBAND AND BROADBAND SIGNALS IN -20 DB TO -30 DB SNR ENVIRONMENTS. APPLICATION OF ADDITIONAL CLASSIFICATION RULES WILL FURTHER ENHANCE THE EXISTING SYSTEM SO THAT UNIQUE CLASSIFICATION CAPABILITIES CAN BE ACHIEVED IN NOISY ENVIRONMENTS. THE PHASE I PROPOSED RESEARCH WILL BE COMPOSED OF THE FOLLOWING STAGES: I) COMPUTER MODELING OF EXPERT SYSTEM, II) RULE-BASE DEVELOPMENT, III) SYSTEM INTEGRATION AND REAL-TIME TESTING. ONCE THE BASIC PRINCIPLES OF PHASE I HAVE BEEN ESTABLISHED, PHASE II & III EFFORTS WILL INCORPORATE FULL-SCALE DEVELOPMENTAL EFFORTS TOWARDS AN OPERATIONAL SYSTEM.

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

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