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- Title
Nonlinear Aerodynamic Model Structure Determination using Statistical Measures.
- Authors
Kamali, C.; Patel, Vijay V.; Pashilkar, A. A.; Chetty, Shyam
- Abstract
The stepwise regression is a well-established technique used to determine aerodynamic model structure from flight data. This paper 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 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.
- Subjects
AERODYNAMICS; MATHEMATICAL models; ESTIMATION theory; MATHEMATICAL statistics; TRANSPORT planes; DATABASES; LEAST squares; MULTIVARIATE analysis
- Publication
International Journal of Aerospace Innovations, 2009, Vol 1, Issue 4, p215
- ISSN
1757-2258
- Publication type
Article
- DOI
10.1260/175722509790291563