Nonlinear aerodynamic model structure determination using statistical measures

Kamali, C and Pashilkar, AA (2009) Nonlinear aerodynamic model structure determination using statistical measures. Project Report. National Aerospace Laboratories, Bangalore.

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Abstract

The stepwise regression is a well-established technique used to determine aerodynamic model structure from flight data. This report discusses the application of stepwise regression to a nonlinear estimation method proposed previously by the authors, for model structure determination. The approach can also be used for the updating aerodynamic database models in table look-up form. The current results obtained for model structure determination for a reference problem are compared against the results obtained using the well known least squares multivariate linear estimation. Simulated data of a transport aircraft is used to prove the concept. Finally, an application of the technique for the aero database update of a high performance fighter aircraft is discussed.

Item Type: Monograph (Project Report)
Uncontrolled Keywords: Nonlinear parameter estimation, stepwise regression
Subjects: AERONAUTICS > Aerodynamics
Depositing User: Users 10 not found.
Date Deposited: 19 Jul 2011 04:41
Last Modified: 27 Aug 2015 06:25
URI: http://nal-ir.nal.res.in/id/eprint/9453

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