| BJS54测绘成果到CGCS2000的改正分析 |
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| 作者单位： | 信息工程大学测绘学院，65015部队 |
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| 摘 要： | 2000中国大地坐标系(CGCS2000)是我国新启用的地心坐标系。采用七参数转换模型且计算区域内使用一套转换参数计算了1954北京坐标系(B JS54)下的经纬度坐标以及高斯平面坐标转换到2000中国大地坐标系(CGCS2000)的改正量,分析了这些改变量所对应的变化趋势以及对旧地形图的影响,提出了对纸质地形图和数字地形图的改正方法。垂线偏差和高程异常的改正量也进行了计算和分析。
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| 关 键 词： | 1954北京坐标系(BJS54) 2000中国大地坐标系(CGCS2000) 坐标转换 垂线偏差 高程异常 |
Analysis of Correction of Surveying and Mapping Products from BJS54 to CGCS2000 |
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| Authors: | GUO Chong LV Zhi-ping |
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| Institution: | GUO Chong1,2,LV Zhi-ping1 |
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| Abstract: | The China Geodetic Coordinate System 2000(CGCS2000) is the new geocentric coordinate system of our country.The correction values of longitude,latitude,Gauss plane coordinate were computed from BJS54 to CGCS2000,in which the seven-parameter transformation mode and a group of transformation parameter were adopted in the computation area.Some analysis on change trend and the influence on former topographic maps were given according to the correction values.The correction methods of paper topographic maps and digital topographic maps were proposed.The correction values of deflection of the vertical and height anomaly were computed and analyzed. |
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| Keywords: | Beijing Coordinate System 1954(BJS54) China Geodetic Coordinate System 2000(CGCS2000) coordinate transformation deflection of the vertical height anomaly |
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