| 加权三次曲面拟合法在RTK工地校正中的应用 |
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| 引用本文： | 肖永飞. 加权三次曲面拟合法在RTK工地校正中的应用[J]. 海洋测绘, 2015, 35(1): 56-58 |
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| 作者姓名： | 肖永飞 |
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| 作者单位： | 中铁第一勘察设计院集团有限公司,陕西西安,710043 |
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| 摘 要： | 由于RTK的测量成果为WGS 84坐标,而实际应用中需要的一般是国家坐标或地方独立坐标,因此需要进行工地校正。针对RTK工地校正过程中公共点的WGS 84坐标存在的系统误差影响坐标转换参数的情况,探讨了利用加权三次曲面拟合法对坐标转换残差进行拟合并对RTK工地校正进行修正的可行性,通过工程实例证明了该方法的有效性。
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| 关 键 词： | RTK工地校正 加权三次曲面拟合法 坐标转换 残差 |
Application of RTK Site Calibration Based onWeighted Cubic Curved Surface Fitting Method |
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| XIAO Yongfei. Application of RTK Site Calibration Based onWeighted Cubic Curved Surface Fitting Method[J]. Hydrographic Surveying and Charting, 2015, 35(1): 56-58 |
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| Authors: | XIAO Yongfei |
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| Abstract: | Because RTK has the prominent advantages of short time observation,fast speed and all-weatheroperation,it is widely used in engineering survey,lofting and topographic surveys.The measurement results ofRTK belong to the WGS 8 4.coordinate,but the needs of practical application are the national coordinate or localindependent coordinate,thence site calibration is required.Aimed at the influence of the system error in the WGS8 4.coordinate on the transformation parameters in the process of RTK site calibration,this paper explores thefeasibility of application of weighted curved surface fitting method in coordinate transformation to deal with thetransformation residual error,and correct RTK site calibration.Through the engineering examples,theeffectiveness of this method is proved. |
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| Keywords: | RTK site calibration weighted cubic curved surface fitting method coordinate transformation residual error |
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