COHERENT PROCESSING FOR LOFARGRAMS

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$406,697.00
Award Year:
1995
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Agency Tracking Number:
29056
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Visidyne, Inc.
299 Cherry Hill Road Suite, 306, Parsippany, NY, 07054
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Peter Hirsch
(201) 299-9004
Business Contact:
() -
Research Institution:
n/a
Abstract
In the operation of passive sonar systems, some Contacts Of Interest (COIs) radiate detectable amounts of broad band energy; on the other hand, their narrow band components are too weak for initial detection, yet are required for classification. Our new approach to such systems is based on envelope coherence, and offers the following advantages: (1) Its broad band detection threshold is 6 dB better than the conventional detector in typical cases; (2) It supplies the times at which the contact transitions between channels, more accurately than previous methods; (3) It automatically associates the broad band and narrow band features of the COI signature.

* information listed above is at the time of submission.

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