Abstract
The Synthetic Vision System (SVS) is an advanced real-time display technology of 3D terrain, which is aimed at integrated display of navigation information and 3D terrain. However, we will face two key problems in SVS development. They are spatiotemporal association of various data and real-time and effective display of terrain. Therefore, in order to solve these problems, a unified representation model is set up in this paper to uniformly express multi-source, heterogeneous and multi-scale data. Besides, LOD (Levels of Detail) based on Quadtree is improved here for the real-time and effective display of terrain. The improved method can increase rendering speed and enhance display effect at the same time. Simulation on OpenGL proves that methods in this paper can realize the integrated display between real-time 3D terrain with multi-resolution and the corresponding navigation data.
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