FLIGHT TEST DATA FILTERING AND SMOOTHING

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$486,000.00
Award Year:
1988
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Award Id:
6543
Agency Tracking Number:
6543
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
485 Alberto Wy - Bldg D, Los Gatos, CA, 95030
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Dr Jacques Beser
(408) 395-9191
Business Contact:
() -
Research Institution:
n/a
Abstract
REDUCTION OF AIRCRAFT TRACKING DATA FOR PRECISE TRAJECTORY DETERMINATION REQUIRES SMOOTH DATA. IF THE TRUE TRAJECTORY HAS ABRUPT CHANGES IN IT, CONVENTIONAL POLYNOMIAL LEAST SQUARES TECHNIQUES WILL BE INADEQUATE TO MEET PRECISION REQUIREMENTS. FURTHERMORE, MANY TEST MISSIONS COULD SIGNIFICANTLY BENEFIT FROM REAL-TIME SOLUTIONS INSTEAD OF CURRENT BATCH PROCESSING. THIS PROPOSAL PRESENTS AN ADAPTIVE OPTIMAL ESTIMATION TECHNIQUE THAT CAN MEET THESE REQUIREMENTS. CONCEPTS TO RELIABLY HANDLE THE RESPONSE/STABILITY TRADEOFF IN AN ADAPTIVE REAL-TIME FILTER HAVE BEEN FORMULATED. THE APPROACH INCLUDES ADAPTATION OF BOTH PROCESS AND MEASUREMENT NOISE, AND USE OF NON-LINEAR STATE PROPAGATION MODELS. EXTENDED STATE ESTIMATION IS DISCUSSED FOR PARTICULAR APPLICATIONS REQUIRING OTHER INFORMATION OR FOR CASES WHERE TRACKING SENSORS POSSESS SIGNIFICANT, DYNAMIC ERRORS. POST-FLIGHT OPTIMAL SMOOTHING APPLICATIONS ARE DISCUSSED.

* information listed above is at the time of submission.

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