基于加权三次曲面拟合的GPS坐标转换

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GPS系统的建立为测绘工作提供了一个崭新的定位测量手段,由于GPS定位技术具有高精度、速度快、成本底的显著优点,因而在控制测量及城市工程网的建立、更新与改造中得到了广泛的应用。本文主要阐述了GPS定位系统所采用坐标系之间的转换,并将加权三次曲面拟合法应用到坐标转换中来处理转换残差,并以靖安县城市控制网修订为实例将该算法与不加权的三次曲面拟合法和徕卡GPS自带后处理软件处理结果相比较,证明了该算法的有效性与实用性。
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