A combined aerodynamic parameter identification method for missing test data

In order to solve the problem that some test data cannot be measured or measurement is difficult, a combined aerodynamic parameters identification method for missing proposed. this method, parameter modified into an optimization problem. The initial value of flight state and interpolation table are used as design variables, motion equation aircraft including all model construct objective function containing multiple pieces information. optimization, database results existing methods prior knowledge. unmeasured fitted reference value. Then, feasible sample selection designed. Finally, differential evolution algorithm proposed process 264 data, show compared with methods, can obtain higher accuracy inversely calculate practical engineering significance.