Research On Terrain Warning System Based On Mobile Platform

Terrain awareness and warning system (TAWS) is an indispensable security system to ensure the normal flight of the aircraft. It can represent the topography around the aircraft and analysis of terrain on the danger degree of the aircraft, and the results in form of warning feedback to the crew, and prevents the CFIT accidents (CFIT), to ensure the safety of the aircraft. But TAWS system volume is too large, quality is too heavy. It can not be used in the small civil aviation general aviation aircraft, in order to solve this problem, this thesis studies the a mobile platform portable terrain warning system based on, and in the small civil aviation general aviation aircraft simulation test success.This thesis introduces and analyzes the background, composition and function of TAWS, the present situation of domestic and international research and the development trend of the future. In this thesis, the software and hardware platform of the portable terrain warning system, the development environment. It is explored and studied. In this thesis, composition and function of the system is designed and implemented. Especially in-depth study is performed on the system function in six kinds of modes and forward-looking function.In the course of the research of the terrain warning system, the contour line drawing model is established, and the transform algorithm of discrete terrain data, geographic coordinate and screen coordinate and contour line drawing algorithm are designed. Then build a terrain warning system, terrain database and forward terrain alarm algorithm design. Finally, the device is simulated on the mobile device and the successful flight test is carried out.