| 天文(重力)水准的新手段及其计算方法 |
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| 引用本文： | 张赤军.天文(重力)水准的新手段及其计算方法[J].大地测量与地球动力学,2002,22(4):31-34. |
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| 作者姓名： | 张赤军 |
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| 作者单位： | 中国科学院测量与地球物理研究所,武汉,430077 |
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| 摘 要： | 介绍当今确定天文大地垂偏差的新仪器－CCD自动天体测量仪和确定两点间高程异常差的新方法，该方法用单极坐标代替繁琐的双极坐标进行计算，讨论了天文重力水准的误差及垂线偏差非线性影响等问题，估计在不久的将来，用这一手段施测山区似大地水准面的精度可望达到厘米级。
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| 关 键 词： | 垂线偏差 天文重力水准 大地水准面 CCD自动天体测量仪 单极坐标法 天文水准 |
| 文章编号： | 1671-5942(2002)04-0031-04 |
| 修稿时间： | 2002年8月7日 |
NEW MEANS OF ASTRO-GRAVIMETRIC LEVELING AND ALGORITHM |
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| Zhang Chijun\,.NEW MEANS OF ASTRO-GRAVIMETRIC LEVELING AND ALGORITHM[J].Journal of Geodesy and Geodynamics,2002,22(4):31-34. |
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| Authors: | Zhang Chijun\ |
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| Abstract: | A new means of determining astro geodetic deflection of the vertical CCD automatic astrometer and the new method to determine the difference of height anomalies between two points are described.In the algorithm the calculation of complicated coordinate of double pole is substituted by the calculation of the coordinate of single pole.Futhermore, problems of the error of astro gravimetric leveling and the nonlinear influence are discussed.It is estimated that before long by this means the accuracy of the quasigeoid in mountianous area can reach centimeter order. |
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| Keywords: | deflection of the vertical astro gravimetric leveling geoid CCD automatic astrometer method with single pole |
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