You are here

TRANSIENT PROCESSING USING THE GABOR REPRESENTATION

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N/A
Agency Tracking Number: 10164
Amount: $49,839.00
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
703 Coastland Dr
Palo Alto, CA 94303
United States
DUNS: N/A
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Benjamin Friedlander
 (415) 323-2608
Business Contact
Phone: () -
Research Institution
N/A
Abstract

CONVENTIONAL SONAR PROCESSING IS BASED ON TECHNIQUES DEVELOPED FOR NARROWBAND STATIONARY (LONG DURATION) SIGNALS. THE INADEQUACIES OF THESE TECHNIQUES WHEN APPLIED TO THE DETECTION AND CLASSIFICATION OF TRANSIENTS MOTIVATES THE SEARCH FOR NOVEL APPROACHES TO THE PROBLEM. THE GABOR REPRESENTATION IS A PROMISING TECHNIQUE FOR DETECTION AND CLASSIFICATION OF UNDERWATER ACOUSTIC TRANSIENTS, WHICH PROVIDES AN ALTERNATIVE TO "TRADITIONAL" FFT BASED PROCESSING. BASED ON PRELIMINARY RESULTS OBTAINED ON SYNTHETIC DATA AND USING OUR EXTENSIVE EXPERIENCE IN TRANSIENT PROCESSING, WE BELIEVE THAT THE GABOR REPRESENTATION IS A NATURAL WAY OF CHARACTERISING UNDERWATER TRANSIENTS. IN PHASE I WE WILL PROCESS REAL ACOUSTIC TRANSIENTS USING BOTH CONVENTIONAL AND GABOR BASED TECHNIQUES, AND PERFORM A COMPARATIVE EVALUATION. WE WILL ALSO COMPLETE THE DEVELOPMENT OF TRANSIENT DETECTION AND CLASSIFICATION ALGORITHMS USING THE "GABORGRAM" AS A STARTING POINT. IN PHASE II WE WILL DESIGN AND BUILD A LOW-COST REAL-TIME TRANSIENT PROCESSING WORKSTATION TO BE USED FOR TEST AND EVALUATION OF GABOR PROCESSING ON LARGE VOLUMES OF DATA, FOR R&D, AND AS AN ADJUNCT TO OPERATIONAL PROCESSING SYSTEMS.

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

US Flag An Official Website of the United States Government