| 基于二次曲面的Shepard方法在GPS高程拟合中的应用 |
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| 引用本文： | 黄勇军. 基于二次曲面的Shepard方法在GPS高程拟合中的应用[J]. 地理空间信息, 2010, 8(1): 32-34 |
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| 作者姓名： | 黄勇军 |
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| 作者单位： | 湖北省国土测绘院,湖北,武汉,430016 |
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| 摘 要： | 针对单一GPS高程拟合方法的不足,给出了一种基于二次曲面的Shepard拟合法。通过对二次曲面拟合法、Shepard拟合法和基于二次曲面的Shepard拟合法进行高程拟合结果的比较,表明基于二次曲面的Shepard拟合方法能显著提高高程拟合精度。
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| 关 键 词： | GPS高程 高程异常 曲面拟合 |
Application of Shepard Method Based on Quadric to GPS Height Fitting |
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| HUANG Yongjun. Application of Shepard Method Based on Quadric to GPS Height Fitting[J]. Geospatial Information, 2010, 8(1): 32-34 |
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| Authors: | HUANG Yongjun |
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| Affiliation: | Land Surveying and Mapping Institute of Hubei;Wuhan 430016;China |
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| Abstract: | Because of some disadvantages of current methods in GPS height fitting,the article introduced a fitting method-Shepard fitting method based on quadric.The fitting methods,such as quadric fitting,Shepard curved surface fitting and Shepard fitting method based on quadric were used for approximating height anomaly in an experiment.The result shows that the precision can be improved evidently by Shepard fitting method based on quadric. |
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| Keywords: | GPS height height anomaly curved surface fitting |
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