Ballistics Filtering

Report No. ARL-TR-4735
Authors: Andrew A. Thompson
Date/Pages: March 2009; 36 pages
Abstract: There are many models of ballistics trajectories. The high-resolution 6-degree-of-freedom (6-DOF) models require many computations and a small time increment. The modified point mass models ignore the spinning of the round to reduce the computational requirements. Selecting a model to use for ballistics estimation or tracking requires tradeoffs between system accuracy and computation expense. The purpose of this report is to present reduced state models (simpler than the 6-DOF model) that can be used to model the trajectories using an extended Kalman filter. These filters can be used to enhance the performance of smart munitions.
Distribution: Approved for public release
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Last Update / Reviewed: March 1, 2009