Ordinary radar simulation in two-dimensional topographical data, can not be carried out for low / ultra low penetration of the target simulation, radar simulation system must be based on the increase in the terrain elevation data to generate DEM, on the basis of conduct Target simulation, radar network can provide useful data simulation.In this paper,
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Terrain surface model has its important and wide-ranged application background in virtual reality. Presently, due to limited hardware capacity, for the large scope terrain, the real-time modeling and visualization is still big problem. The multi-resolution representation is a good way for creating of virtual terrain scene and the real-time rendering.In this dissertation, multi-resolution representation and
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