Page 224 - Neural Network Modeling and Identification of Dynamical Systems

6.3 SEMIEMPIRICAL MODELING OF AIRCRAFT THREE-AXIS ROTATIONAL MOTION 215

FIGURE 6.10 The values of the reproduction error for the values C y , C z , C l , C n , C m according to the reconstructed depen-
dencies for them during the testing of the semiempirical model (refer to the ranges of these values obtained during testing)
(From [4], used with permission from Moscow Aviation Institute).

input disturbance affects the aircraft before the the accuracy dynamics for this model during the
transition processes from one or several preced- training.
ing disturbances have died out. The accuracy of the model is determined by
Fig. 6.9 characterizes the final model after the how accurately the nonlinear functions that rep-
training procedure has already been completed. resent the aerodynamic characteristics of the air-
Data presented in Table 6.5 allow us to analyze craft are reconstructed. The data in Fig. 6.9 char-