1991-09-01

Spaceplane Longitudinal Aerodynamic Parameter Estimation by Cable-Mount Dynamic Wind-Tunnel Test 911980

Cable-mount dynamic wind-tunnel tests have been made in the NAL low speed wind tunnel for the purpose of extracting aerodynamic parameters of a 5% spaceplane model. The cable-mount dynamic wind-tunnel experiment is described.
An identification technique composed of flight path reconstruction and regression analysis(two step method), and the maximum likelihood method for the identification of the parameters in the linear dynamic system(one step method) were applied to the wind-tunnel test data. The estimation results for the aerodynamic parameters by the two methods are compared.

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