| 不同空间域坐标转换方法研究 |
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| 引用本文： | 侯方全,王晶晶.不同空间域坐标转换方法研究[J].测绘工程,2016,25(11). |
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| 作者姓名： | 侯方全 王晶晶 |
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| 作者单位： | 青岛市国土资源和房屋管理局城阳国土资源分局,山东 青岛,266109;武汉大学 测绘学院,武汉,430079 |
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| 基金项目： | 青岛市城阳区第二次土地调查项目(0656-0841CCY28545) |
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| 摘 要： | 我国工程测量项目的数据成果一般统一在西安80坐标框架下,GPS以其高精度、高效率等优势在控制测量、地籍测量、新增地物补测等有着重要应用,即涉及到不同空间域WGS-84坐标与西安80坐标的转换。本文通过大区域测区与小区域测区的坐标转换实例,对比不同空间域坐标转换方法的选择、公共点数量对转换精度的影响,得出在大区域坐标转换中,应采用七参数法且合理选择较多数量的公共点;在小区域坐标转换中,采用四参数法进行坐标转换优于七参数法,且公共点数量合理。
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| 关 键 词： | WGS-84 西安 80 不同空间域坐标转换 七参数 四参数 |
Research on coordinate system transformation in different spatial domain |
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| HOU Fangquan,WANG Jingjing.Research on coordinate system transformation in different spatial domain[J].Engineering of Surveying and Mapping,2016,25(11). |
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| Authors: | HOU Fangquan WANG Jingjing |
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| Abstract: | At present ,the results of engineering survey data are united in Xi’an 80 coordinate system ,GPS with high-precision and efficience plays an important role in control surveying , cadastral surveying , additional surveying of new surface features and so on , which is involved in the coordinate system transformation in different spatial domain of WGS-84 and Xi’an 80 .Comparing the influences of selection of methods and number of the common points to coordinate system transformation , this paper gets a conclusion that seven parameters method should be used to select more common points in coordinate system transformation of big spatial domain ;four parameters method to select the reasonable and not more common points in coordinate system transformation of small spatial domain . |
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| Keywords: | WGS-84 Xi’ an 80 coordinate system transformation in different spatial domain seven parameters four parameters |
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