Heading System Design of MAV

This article puts forward a new heading system (including heading measurement and heading control) framework of micro air vehicle (MAV) starting from practical application, then designs a plan in which three most popular heading measurement methods, magnetic heading, strapdown heading and GPS heading, are implemented in a mini system, analyzes their strong and weak points one by one, and provides a way to obtain a practical heading based on data fusion. The advantages of this way are appropriately accuracy, little calculation amount, no system model needed, and dynamic online self-calibration. The article also designs a plan for heading control of MAV on the basis of heading measurement, which has been realized in the IFLY30 MGNC (micro guidance, navigation and control) system. IFLY30 is used in the flight control system of a sort of mini fixed wing aircraft. Static and autonomous flight tests prove that the heading system designed in this paper is feasible with excellent performance