Abstract:In order to realize multi-band simultaneous adjustment of aircraft flight path and make its flight attitude be effectively controlled by software program, the software program of aircraft flight attitude control system based on PWPF modulation technology is designed. According to the clock configuration, set the CAN communication interface, and on this basis, complete the detection of the status of the navigator and the steering gear, and then combine the yaw distance correction results to standardize the writing form of the core control program, and realize the design of the functions of each software module of the system. Establish the auto-disturbance rejection closed-loop, solve the quadratic programming function according to the static function requirements of PWPF modulation technology, and complete the definition of control mechanism based on PWPF modulation technology. During the operation of the backstepping controller, the nonlinear modeling expression is derived to realize the modeling of aircraft flight attitude control behavior, and the software design of aircraft flight attitude control system based on PWPF modulation technology is completed. The experimental results show that the software program designed based on the PWPF modulation technology can effectively control the flight attitude of the aircraft within the wave frequency range of X wave, C wave, S wave and L wave, which is consistent with the practical application requirements of multi-band adjustment of the aircraft travel path.