Accession Number : ADD008980

Title :   Feature Recognition System.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Dusheck,George J , Jr ; Scott,Phillips B

Report Date : 14 Oct 1980

Pagination or Media Count : 28

Abstract : An airborne system for automatically and electronically recognizing and detecting the relative presence of invariant features of a transient submarine signal occurring in the presence of signal-like noise. A plurality of comb filters receive MAD signal information in the amplitude-time domain and filter it to provide amplitude-time-frequency domain information. The primary features (positive and negative slopes) of this latter information are then abstracted, the abstracted information being utilized in a signal processor to detect and recognize the relative presence of invariant, submarine recognition features. Upon recognition, a decision thereof is routed to a visual display. (Author)

Descriptors :   *Patents, *Signal processing, *Pattern recognition, Magnetic anomaly detection, Submarine detection, Transients, Time domain, Bandpass filters, Target recognition, Decision making, Automatic, Circuit analysis

Subject Categories : Electrical and Electronic Equipment
      Undersea and Antisubmarine Warfare
      Magnetic & Electric Fld Detection & Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE