Research on highly-accurate aerodynamic parameter identification

The accuracy of control system is determined by the veracity of control law design of fixed-wing UAV, and the control law synthesis requires the aerodynamic parameter, that means the accuracy of aerodynamic parameter is of great importance to the control system. In fact, an important part of building mathematical models based on measured data is calculating the accuracy associated with statistical estimates of the model parameters. This case use flight tests and system identification techniques to determinate accurate parameter with economical operation, and we can obtain sufficient information to estimate parameters through the operation. The scatter in the parameter estimates from real flight test data and the Cramér-Rao bounds corrected with colored residuals are applied to determinate the accuracy of aerodynamic parameter.