Filter performance in target tracking using space-based observers

Authors
Citation
Da. Cicci, Filter performance in target tracking using space-based observers, APPL MATH C, 99(2-3), 1999, pp. 275-293
Citations number
8
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Engineering Mathematics
Journal title
APPLIED MATHEMATICS AND COMPUTATION
ISSN journal
0096-3003 → ACNP
Volume
99
Issue
2-3
Year of publication
1999
Pages
275 - 293
Database
ISI
SICI code
0096-3003(19990315)99:2-3<275:FPITTU>2.0.ZU;2-1
Abstract
The objective of this research was to evaluate the performance of an extend ed Kalman filter (EKF) and an adaptive EKF in tracking a target vehicle usi ng various measurement types from space-based observers. The adaptive EKF i ncorporates ridge-type estimation methods to improve the accuracy obtained by the standard EKF. The dynamical model developed for the target vehicle i ncludes the effects of the spherical and non-spherical earth, launch vehicl e thrust, and atmospheric drag. Possible observation types considered are a zimuth and elevation angles, range, and range-rate data from up to three sp ace-based observers. Comparative studies were made to evaluate the estimati on accuracy as a function of observation type, number of observers, and obs ervation rate for an observation time of up to 2 min after target vehicle b urnout. In addition, comparisons were made with and without the use of init ial orbit determination techniques. Results show that the performance of th e adaptive EKF exceeds that of the EKF in a number of scenarios studied. (C ) 1999 Elsevier Science Inc. All rights reserved.