The Research Of UAV Flight Control System Based On DSP

Unmanned aerial vehicle (UAV) is a symbol of national comprehensive strength ofscience and technology. It is low cost, high safety coefficient and using flexible, playingan irreplaceable role in the field of military and civilian. Autonomous flight controlsystem is the core part of the UAV, is also a important index to measure the performanceof uav. With the development of advanced science and technology, flight control systemis moving in the direction of low power consumption, small in size and highperformance.The development of modern demands flight control system has much higherminiaturization and processing speed. The research of flight control system whichchoose the high performance DSP processor as the core is more and more. On the basisof theoretical research for UAV flight control system，puts forward a complete designscheme of flight control system based on DSP for small UAV. Detailed introduces thesystem hardware structure and basic functions, including the flight control computer,sensor module, GPS and steering gear, etc. And on the basis of the hardware platformfor software design. To realize the function of the flight control system. At the sametime, flight control systems are required to have excellent control characteristics, itshould be able to meet the needs of high adaptability, flexibility and precision, thispaper presents a parameter self-adaptive fuzzy PID controller, controller designprinciples, structure and control rules have been described in detail in the textSimulation results show that， compared with conventional PID controllers， theparameter self-adaptive fuzzy PID controller performs better, it is characterized bysmall overshoot, fast response, high accuracy, strong adaptability to meet the UAVautonomous flight requirements.Research shows that, the design has good practicability and universality, the studylays a foundation for the development of UAV flight control system in the future.