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高斯投影距离改正 [测] distance correction In Gauss projection
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局域差分gps认为在距离参考站较近的区域内,观测误差具有相关性。参考站将观测量与理论值之差作为差分改正数发送给用户进行差分改正。
Using GPS observation data from differential GPS reference stations, several errors, which can't modeled, were solved and sent to user around these reference station.
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