美国军事网格参考系统及其启示

Enlightenment from USA Military Grid Reference System

军事网格参考系统（MGRS）是基于通用横墨卡托（UTM）投影面上或通用极球面（UPS）投影面上，附加在美军地图上的两组分别平行于投影坐标轴且垂直相交形成的方格网。论文较详细剖析了MGRS的网格基准、分区、编码、多分辨率网格构成及其MGRS在军事上的应用，为我国基本比例尺地形图方里网建立与完善，基于平面的地理空间信息多级网格构建提供了一些启发与思考。

Based on UTM or UPS, MGRS is a square grid, which is attached on USA military map, and consisted of two groups of lines paralleling the project coordinate axes separately, perpendicular and intersectant. In this paper, MGRS is analyzed in the following aspects in detail： grid datum, grid division, grid encoding, composing of multi-resolution grid as well as the military application. The study provides some illumination for the foundation and perfection of square grid in our national basic scale topographic map, as well as the construction of geospatial information multi-level grid based on plane.