| 一种表示地球椭球体上椭圆的算法 |
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| 引用本文： | 尹辉,谢玉波,李欣.一种表示地球椭球体上椭圆的算法[J].测绘科学,2009,34(5):156-157. |
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| 作者姓名： | 尹辉 谢玉波 李欣 |
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| 作者单位： | 华北计算技术研究所,地理信息与数据库研究室,北京,100083;华北计算技术研究所,地理信息与数据库研究室,北京,100083;华北计算技术研究所,地理信息与数据库研究室,北京,100083 |
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| 摘 要： | 采用常规的投影算法表示地球椭球体上的椭圆时,所得椭圆与实际椭圆存在一定误差。针对上述问题,阐述了一种通过解算大地主题表示地球椭球体上椭圆的算法。通过几个实例,对两种算法进行了比较和分析,结果表明,通过解算大地主题表示地球椭球体上椭圆的算法具有非常高的精度。
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| 关 键 词： | 大地主题 大地距离 方位角 贝塞尔算法 |
An algorithm to represent ellipse on earth ellipsoid |
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| YIN Hui,XIE Yu-bo,LI Xin.An algorithm to represent ellipse on earth ellipsoid[J].Science of Surveying and Mapping,2009,34(5):156-157. |
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| Authors: | YIN Hui XIE Yu-bo LI Xin |
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| Abstract: | Error exists between actual ellipse and ellipse which is represented by projection algorithm on the earth ellipsoid.In order to solve this problem,an algorithm is elaborated to represent ellipse on ellipsoid by solving the geodetic problem.These two algorithms are compared and analyzed through several examples.The results show that the algorithm by solving the geodetic problem has higher accuracy. |
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| Keywords: | geodetic problem geodetic distance azimuth Bessel algorithm |
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