Coordinate conversion in GPS survey GPS测量中的坐标改化
From GPS surveying the WGS-84 coordinates are acquired, while in reality coordinates in local coordinate system are needed, so conversion from WGS-84 coordinates to local coordinates is necessary.
GPS测量得到的是WGS - 84坐标，而实用上需要的是地方坐标系坐标，因而得把WGS - 84坐标转换地方坐标系坐标。
The GPS RTK positioning technology has been widely used in the measuring engineering. The errors of the data mainly are composed of measuring error and coordinate conversion error.
GPS RTK定位技术，因其直观快捷、实时性强、点位误差不累积等优点在测绘生产中得到了普遍的使用，其误差由GPS的定位误差与坐标转换误差组成。
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