Title :
Research on Technologies of Real-Time Simulation and Warning Analysis of Airborne 3D Digital Earth
Author :
Jiang, Wenping ; Xi, Daping
Author_Institution :
Sch. of Resource & Environ. Sci., Wuhan Univ., Wuhan, China
Abstract :
In this paper the basic concept and technical characteristics of airborne 3D digital earth are expounded at first, and then the functions and running mode are analyzed, and the organization and optimization strategies of multi-resolution global terrain and image models and aviation electronic map are studied in VxWorks. Furthermore, the author explores such key technologies as dynamic data scheduling, progressive graphics refreshing, rendering in real-time and map symbolization of each data tile in 3D scene, analysis and computing of ground proximity warning, aviation information displaying, etc. It has been proved that these technologies are very effective in the actual application of embedded 3D digital earth system and have broad prospects.
Keywords :
digital elevation models; geographic information systems; terrain mapping; 3D digital earth system; 3D scene; airborne 3D digital earth; aviation electronic map; aviation information displaying; data tile; dynamic data scheduling; ground proximity warning; image model; map symbolization; multiresolution global terrain model; progressive graphics refreshing; real-time simulation technology; warning analysis; Analytical models; Real time systems; Rendering (computer graphics); Solid modeling; Three dimensional displays; Tiles;
Conference_Titel :
Remote Sensing, Environment and Transportation Engineering (RSETE), 2012 2nd International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4673-0872-4
DOI :
10.1109/RSETE.2012.6260705
