Estimation of Launch and Impact Points of a Flight Trajectory using U-D Kalman Filter/Smoother

Naidu, VPS and Girija, G and Raol, JR (2006) Estimation of Launch and Impact Points of a Flight Trajectory using U-D Kalman Filter/Smoother. Defence Science Journal, 56 (4). pp. 451-463. ISSN 0011-748X

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Abstract

The launch and impact points of a flight trajectory are estimated using U-D Kalman filter and Rauch-Tung-Striebel (R-T-S) smoother. Algorithms are implemented in PC MATLAB and validated using simulated data. The filter performance is evaluated in terms of state error, innovation sequence, and autocorrelation of residuals along with their theoretical bounds. The R-T-S smoother was found to generate accurate state estimates, which led to better launch point estimation. Launch and impact point prediction from real data of a guided target in ballistic mode is also evaluated.

Item Type: Article
Subjects: AERONAUTICS > Aircraft Communication & Navigation
AERONAUTICS > Avionics & Aircraft Instrumentation
ENGINEERING > Communications and Radar
Depositing User: Dr VPS Naidu
Date Deposited: 06 Jul 2010 04:49
Last Modified: 06 Jul 2010 04:49
URI: http://nal-ir.nal.res.in/id/eprint/8537

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