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Accession Number:
ADA067354
Title:
Optimal State Estimation of Ballistic Trajectories with Angle-Only Measurements
Corporate Author:
MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB
Report Date:
1979-01-24
Abstract:
An iterative least square estimation algorithm is dervied and applied to the problem of state estimation of ballistic trajectories with angle-only measurements. A filter initiation procedure is suggested. The application of trajectory a priori knowledge for improving the estimate is discussed and solved as a constrained estimation problem. A Monte Carlo simulation study was conducted to evaluate these techniques. It was found that the iterative least square filter achieves the Cramer-Rao bound and it performs better than the extended Kalman filter when the sensor is on a free-falling platform. When the sensor is on a stationary platform however, both estimators asymptotically achieve the Cramer-Rao bound.
Descriptive Note:
Technical note
Supplementary Note:
DOI: 10.21236/ADA067354
Pages:
0050
Contract Number:
F19628-78-C-0002
File Size:
1.43MB
