Aerodynamic force modeling of quasi-steady stall phenomenon based on UKF-WNN

The paper proposed an algorithm which can get over the BP algorithm´s shortcomings of slow convergence speed, computation complexity and local minimum by using the UKF to estimate the parameters of WNN. Then it takes the phenomenon of aerodynamic modeling of quasi-steady stall for ATTAS aircraft as applying background and uses the algorithm of BP, EKF and UKF to train the WNN respectively. From the simulation results we can see that the UKF algorithm is faster in training speed and more accurate in prediction when compared with BP and EKF and it is competent for modeling of complex nonlinear aerodynamic phenomenon as well.