Identification of aerodynamic coefficients of a projectile and reconstruction of its trajectory from partial flight data

Vincent Condaminet; Franck Delvare; Daniel Choï; Hélène Demailly; Christophe Grignon; Settie Heddadj

doi:10.24423/cames.36

Vincent Condaminet Laboratoire LMNO, Université de Caen, Caen/Nexter Munitions, Bourges
Franck Delvare Laboratoire LMNO, Université de Caen, Caen
Daniel Choï Laboratoire LMNO, Université de Caen, Caen
Hélène Demailly DGA Land Systems, Bourges
Christophe Grignon DGA Land Systems, Bourges
Settie Heddadj Nexter Munitions, Bourges

DOI: http://dx.doi.org/10.24423/cames.36

Abstract

Several optimization techniques are proposed both to identify the aerodynamic coefficients and to reconstruct the trajectory of a fin-stabilized projectile from partial flight data. A reduced ballistic model is used instead of a more general six degree of freedom (6DOF) ballistic model to represent the flight of the projectile. Optimization techniques are proposed in order to identify the set of aerodynamic coefficients. These techniques are compared when identifying the aerodynamic coefficients from both exact and noisy simulated partial flight data.

Keywords

aerodynamic coefficients, identification, free flight data, regularization,

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