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| 引用本文： | 周跃寅,潘国荣.?????????????????????????[J].大地测量与地球动力学,2013,33(2):105-109. |
| 作者姓名： | 周跃寅 潘国荣 |
| 作者单位： | 1. 同济大学测绘与地理信息学院,上海,200092 2. 同济大学测绘与地理信息学院,上海200092;现代工程测量国家测绘局重点实验室,上海200092 |
| 基金项目： | 高等学校博士学科点专项基金(博导类) |
| 摘 要： | ??????????????????????????й?????????????????????????????????????????????????????????????????????????11??15?????165?????????????????????е????????????????????????????ε??????????λ?????????????????????о?????????????????????????????Χ????????????????????????????????λ????????????????????????????????Shepard?????????????????????????ó???????λ????????????ɡ? |
| 关 键 词： | ??????? ?????? ?????? ??? Shepard??? |
| 收稿时间： | 2012-09-06 |
ACCURACY OF COORDINATE TRANSFER INFLUENCED BY DIFFERENT DISTRIBUTIONS OF COMMON POINTS |
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| Zhou Yueyin,Pan Guorong.ACCURACY OF COORDINATE TRANSFER INFLUENCED BY DIFFERENT DISTRIBUTIONS OF COMMON POINTS[J].Journal of Geodesy and Geodynamics,2013,33(2):105-109. | |
| Authors: | Zhou Yueyin Pan Guorong |
| Institution: | 1）College of Surveying and Geo informatics, Tongji University, Shanghai 200092 2）Key Laboratory of Modern Engineering Surveying, SBSM, Shanghai 200092 |
| Abstract: | In order to calculate the transformation of Cartesian coordinates, we need to know the two sets of coordinates of the common points, select different common points to establish the corresponding error equation and obtain the 7 parameters or 13 parameters of the transformation. We made the research on comparing estimated points calculated by transformation parameters with designed points in outer space and inner space around these common points through the simulation of 165 survey points in 11 rows and 15 columns of two sets coordinates. Taking the Euclid distance of the two sets of points as the basic surface fitting data to establish the surface model for calculating accuracy and with modified Shepard’s method, we have abtained some general distribution law about the accuracy of calculating coordinate points. |
| Keywords: | coordinate transformation common points calculaton accuracy distribution Shepard’s model |
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