Design And Implementation Of Flight Control System Of Flight Patrol Based On ZYNQ Platform

As a combination of UAV and missile technology,loitering munition can cruise and fly above the combat area,so as to perform various combat tasks such as reconnaissance and strike,damage assessment,and communication forwarding.In this highly informationized combat environment in the future,loitering munitions are a key direction for the development of precision strike weapons in the future.Faced with the increasing requirements for the performance and miniaturization of the loitering munition flight control system,the traditional core processor architecture of the loitering munition flight control system has disadvantages such as high power consumption,low scalability,and large size.Therefore,it is of great significance to design a loitering munition flight control system with high performance,strong scalability and miniaturization.Thesis first expounds the background and research significance of the design of the flight control system of the loitering munition.After analyzing the shortcomings of the core processor architecture of the traditional flight control system of the loitering munition,combined with the main functional requirements of the flight control system of the loitering munition,the focus is on the loitering munition control law,flight control system hardware design and software design are analyzed and studied,and finally a loitering munition flight control system based on ZYNQ platform is designed and implemented.The main research work of thesis is as follows:In the dynamic modeling and control law design of the loitering munition,thesis first analyzes the flight process of the loitering munition,establishes the six-degree-offreedom motion equations of the loitering munition,and then decouples and linearizes the motion equations.The transfer functions of the pitch channel and the yaw channel of the loitering munition are obtained respectively.Then put forward the control law scheme design of the loitering munition,and use the parameter adaptive fuzzy PID controller to carry out the control law scheme design for the pitch channel of the loitering munition,and then carry out the simulation research,the simulation results show that the adaptive fuzzy PID designed in thesis,compared with the traditional PID controller,the controller has better control effect and meets the performance requirements.In the design of the loitering munition flight control system,it mainly includes the overall structure of the flight control system,the hardware design and software design of the flight control system.Among them,the hardware design of the flight control system is to use the XCZU3EG-1SFVC784 I chip of the Zynq Ultra Scale+ MPSo Cs EG series as the core processor of the flight control system,and adopt a modular design method to separately design the core processor system,data communication module,and servo driver.The module and the discrete quantity I/O module carries on the corresponding hardware circuit design.At the same time,the software part of the corresponding module is designed on the basis of the hardware platform,mainly including initialization and main program design,data communication module program design,steering gear driver program design,discrete I/O program design and control law program design.Finally,the printed circuit board(PCB)design of the hardware platform of the flight control system is completed,and each module is tested to ensure that each module can operate normally.Then,the rationality of the design scheme of the flight control system is verified by hardware-in-the-loop simulation,which meets the design requirements.