GPS data adopts WGS-84 Coordinate, while the digital map adopts Beijing 54 Coordinate. So it is a key to solve that translate the WGS-84 Coordinate to Beijing 54 Coordinate.
GPS数据采用WGS - 84坐标系，而电子地图往往采用北京54坐标系，因而，如何将WGS - 84坐标转换为北京54坐标成为系统必须解决的一个关键问题。
The map updating was based on RS images. Methods of RS image multinomial digital geometric correction, and RS image coordinate register for field base map updating were introduced.
该文农田基础地图的更新基于经过多项式几何校正与坐标配准后的遥感图像进行。
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