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

  • V.P.S. Naidu National Aerospace Laboratories, Bangalore
  • Girija G. National Aerospace Laboratories, Bangalore
  • J.R. Raol National Aerospace Laboratories, Bangalore
Keywords: Trajectory estimation, U-D Kalman filter, R-T-S smoother, Kalman tracking flight trajectory, launch point, impact point, target detection, air defence, Kalman tracking filter Revised 25

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.
Published
2006-10-01
How to Cite
NaiduV., G.G., & RaolJ. (2006). Estimation of Launch and Impact Points of a Flight Trajectory using U-D Kalman Filter/Smoother. Defence Science Journal, 56(4), 451-463. https://doi.org/10.14429/dsj.56.1911
Section
Special Issue Papers