TY - GEN
T1 - LFT-based stability analysis of a generic guided missile
AU - Pfifer, Harald
AU - Hecker, Simon
AU - Michalka, Gunther
PY - 2009/12/1
Y1 - 2009/12/1
N2 - We present an example of how LFT-based stability analysis μ can be applied to a nonlinear missile model. The major point is the generation of suitable linear parametric descriptions of the nonlinear model, which allow for accurate and efficient analysis. The basis is a set of linearized state-space systems, which approximate the local behavior of the nonlinear plant. This set is approximated by a linear parametric model employing multivariable polynomial fitting techniques in combination with global optimization. The objective of the optimization is to find linear parametric models that allow the generation of least order linear fractional representations (LFR), which accurately approximate the original nonlinear missile model. Finally, with these LFRs of the missile model a stability analysis is conducted based on the structured singular value.
AB - We present an example of how LFT-based stability analysis μ can be applied to a nonlinear missile model. The major point is the generation of suitable linear parametric descriptions of the nonlinear model, which allow for accurate and efficient analysis. The basis is a set of linearized state-space systems, which approximate the local behavior of the nonlinear plant. This set is approximated by a linear parametric model employing multivariable polynomial fitting techniques in combination with global optimization. The objective of the optimization is to find linear parametric models that allow the generation of least order linear fractional representations (LFR), which accurately approximate the original nonlinear missile model. Finally, with these LFRs of the missile model a stability analysis is conducted based on the structured singular value.
UR - http://www.scopus.com/inward/record.url?scp=78049260131&partnerID=8YFLogxK
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M3 - Conference contribution
AN - SCOPUS:78049260131
SN - 9781563479786
T3 - AIAA Guidance, Navigation, and Control Conference and Exhibit
BT - AIAA Guidance, Navigation, and Control Conference and Exhibit
T2 - AIAA Guidance, Navigation, and Control Conference and Exhibit
Y2 - 10 August 2009 through 13 August 2009
ER -