| 构建独立坐标系与CGCS2000坐标系转换关系的研究 |
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| 引用本文： | 刘万华,叶水全. 构建独立坐标系与CGCS2000坐标系转换关系的研究[J]. 测绘与空间地理信息, 2016, 0(1): 217-219. DOI: 10.3969/j.issn.1672-5867.2016.01.074 |
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| 作者姓名： | 刘万华 叶水全 |
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| 作者单位： | 重庆市勘测院,重庆,400020 |
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| 摘 要： | 西部某独立坐标系(下文简称独立系)建立于20世纪50年代,以辖区内2处1954年北京坐标点为起算点,并投影至当地平均高程面的二维平面坐标系。独立坐标系无确切的数学模型,与通用质心坐标系(如WGS84、CGCS2000)之间的转换一般通过平差完成。本文研究运用二维非线性最小二乘重算参数模型(a,f)和Bursa七参数模型,建立了独立坐标系与CGCS2000坐标系之间的转换关系。
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| 关 键 词： | 椭球模型求解 投影 重算 最小二乘Bursa七参数 |
Research on the Construction of the Relationship between Independent Coordinates System and CGCS2000 Coordinate System |
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| Abstract: | This independent coordinate system in Western China was established in 1950s, the initial points were 2 coordinate points of 1954′Beijing coordinate system in this region and it was being projected on local average elevation plane′s 2d plane coordinate sys-tem.There was no exact mathematical model in the independent coordinate system, and the conversion between general censorial coor-dinate system ( like WGS84,CGCS2000) and it generally through adjustment.This article researches on the construction of the relia-ble conversion between the independent coordinate system and CGS2000 coordinate system through 2d nonlinear least square recalcula-tion parameter model( a, f) and Bursa 7 parameters model. |
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| Keywords: | ellipsoid model solving projection recalculation least square Bursa 7 parameters |
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