A Multiple IMM Estimation Approach with Unbiased Mixing for Thrusting Projectiles

A Multiple IMM Estimation Approach with Unbiased Mixing for Thrusting Projectiles

We present a procedure to estimate the state of thrusting/ballistic endoatmospheric projectiles for the end purpose of impact point prediction. The short observation time and the estimation ambiguity between drag and thrust in the dynamic model motivate the development of a multiple interacting mult...

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Veröffentlicht in:IEEE transactions on aerospace and electronic systems 2012-10, Vol.48 (4), p.3250-3267
Hauptverfasser: Ting Yuan, Bar-Shalom, Y., Willett, P., Mozeson, E., Pollak, S., Hardiman, D.
Format: Artikel
Sprache:eng
Schlagworte:
Aircraft components
Covariance matrix
Drag
Drag coefficients
Dynamic models
Electronic systems
Estimation
Estimators
Mathematical models
Noise
Projectiles
Thrust
Trajectory
Vectors
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Beschreibung
Zusammenfassung:We present a procedure to estimate the state of thrusting/ballistic endoatmospheric projectiles for the end purpose of impact point prediction. The short observation time and the estimation ambiguity between drag and thrust in the dynamic model motivate the development of a multiple interacting multiple model (MIMM) estimator with various drag coefficient initializations. A simple unbiased IMM mixing procedure (useful for quite general applications) is presented for state estimators with unequal dimensions and applied for the thrusting and ballistic modes in the case considered. Results with real data are given.
ISSN:0018-9251
1557-9603
DOI:10.1109/TAES.2012.6324701