UTILIZATION OF ON-BOARD DIGITAL GEOMAGNETIC FIELD DATA AND ANCILLARY SOFTWARE TO OPTIMIZE MAGNETIC ASW OPERATIONS

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N/A
Agency Tracking Number: 9208
Amount: $49,761.00
Phase: Phase I
Program: SBIR
Awards Year: 1988
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
445 Union Blvd - Ste 203, Lakewood, CO, 80228
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 DR D O'BRIEN
 (303) 969-9924
Business Contact
Phone: () -
Research Institution
N/A
Abstract
THIS PROPOSAL SEEKS TO INVESTIGATE THE FEASIBILITY OF IMPROVING MAGNETIC ASW BY UTILIZING AN ON BOARD DIGITAL RECORD OF THE EARTH'S GEOMAGNETIC FIELD. MAGNETIC DETECTION TECHNIQUES FOR SUBMARINES REQUIRE SEPARATION OF THE SIGNATURE OF THE SUBMARINE FROM THE BACKGROUND FIELD. TESSERA PROPOSES TO DEVELOP A SYSTEM TO IMPROVE ANOMALY SEPARATION BY EMPLOYING EXISTING DIGITIZED GEOMAGNETIC FIELD DATA TO ACCOUNT FOR, AND SEPARATE FROM THE SIGNAL OF INTEREST, THE EFFECTS OF THE EARTH'S FIELD. AN ALGORITHM IS PROPOSED WHICH UTILIZES EXISTING MAGNETIC DATA TO LOCATE ANOMALOUS TARGETS BY DIGITAL FILTERING OF OBSERVED ASW DATA TOGETHER WITH PROPERLY CORRECTED GEOMAGNETIC FIELD DATA. THE COMBINATION OF THESE DATA ALLOW DESIGN OF AN OPTICAL SIGNAL EXTRACTION FILTER WHOSE WEIGHTS VARY FROM POSITION TO POSITION DEPENDING UPON THE NATURE OF THE GEOMAGNETIC FIELD. TARGET DETECTION IS ENHANCED BY MEANS OF AN OPTIMIZED DIGITAL ALGORITHM EMPLYING BOTH THE EXISTING DATA BASE AND THE UPDATED MAGNETIC DATA OBSERVED BY THE ASW AIRCRAFT.

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

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