Determination of airplane model structure from flight data using splines and stepwise regression
Vladislav Klein, James G. Batterson, United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch
National Aeronautics and Space Administration, Scientific and Technical Information Branch, 1983 - Technology & Engineering - 49 pages
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28 Figure ac ac aerodynamic coefficients aerodynamic force aerodynamic functions aerodynamic model equations airplane model structure airspeed ALPH ALPH(I amplitude maneuvers angle of attack autocorrelation function Batterson candidate model variables combined maneuvers computer memory deg Figure degree of spline Determination of Airplane different maneuvers elevator deflection estimated from different F-value Figure 16 flight data GE.XKNOT GE.XKNOT GE.XKNOT histories of measured hysteresis IF(ALPH(I IF(ALPH(I IF(ALPH(I independent variables lag number Langley Research Center large-amplitude longitudinal maneuvers lateral parameters longitudinal and lateral maneuvers Large-amplitude maneuvers maximum maximum likelihood measured data model selection model structure determination multiple correlation coefficient NASA nonlinearities parameters estimated parameters obtained partitioned data polynomial spline representation postulated procedure rad or deg response and input response variables sideslip Small-amplitude maneuvers Large-amplitude spline function squared multiple correlation standard error stepwise regres structure from flight subset technique tion variable entered yawing zero-degree splines