Space Information Networks by Quan Yu

Author:Quan Yu
Language: eng
Format: epub
ISBN: 9789811534423
Publisher: Springer Singapore

3 Introduction to Discrete Global Grid

3.1 Division of Discrete Global Grid

In order to achieve the uniform coverage for the ground, this paper proposes to use the regular octahedron discrete grid model to divide the earth surface. The vertex of the octahedron coincides with the main position points (including poles) of the earth. Take the original spherical triangle of the octahedron ABC for example, vertex A coincides with the pole, and the other two vertices are located at the equator (Fig. 1).

Fig. 1.Schematic diagram of level 3 (left) and level 6 (right) division of octahedron [1]

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