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| 手持GPS测量面积变形误差研究 | |
| 引用本文： | 路琪,景欣,勾志阳,钱旭,晏磊.手持GPS测量面积变形误差研究[J].全球定位系统,2012,37(3):63-67. |
| 作者姓名： | 路琪 景欣 勾志阳 钱旭 晏磊 |
| 作者单位： | 1. 中国矿业大学北京机电与信息工程学院,北京100083 北京大学空间信息集成与3S应用北京市重点实验室,北京100087 2. 北京大学空间信息集成与3S应用北京市重点实验室,北京,100087 3. 中国矿业大学北京机电与信息工程学院,北京,100083 |
| 基金项目： | 国家高技术研究发展计划(863)基金重点项目 |
| 摘 要： | 手持GPS有简单方便的面积计算功能。讨论了手持GPS面积计算的原理与方法。手持GPS计算面积时先将WGS-84坐标转换为高斯平面直角坐标,再以平面直角坐标求解面积。高斯平面直角坐标选择直角坐标系中央子午线离所测地区距离越远,误差就会越大。计算了相对误差并对面积计算结果进行了修正,结果表明:面积修正起到了减小误差的作用。 |
| 关 键 词： | GPS 高斯投影 面积计算 面积变形 |
Deformation Error of Handheld GPS Area Measurement |
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| LU Qi,JING Xin,GOU Zhiyang,QIAN Xu,YAN Lei.Deformation Error of Handheld GPS Area Measurement[J].Gnss World of China,2012,37(3):63-67. | |
| Authors: | LU Qi JING Xin GOU Zhiyang QIAN Xu YAN Lei |
| Institution: | 1. China University of Mining ＆ Technology, Beijing 100083, China; 2. Beijing Key Lab of Spatial Information Integration Its Applications Institute of RS ＆ GIS Beijing University, Beijing 100087, China) |
| Abstract: | Handheld GPS has a simple and convenient area function. The principles and methods for hand-held GPS area calculation are discussed. WGS-84 coordinates are first con- verted to the Gaussian plane rectangular coordinates to calculate the area. The farther the distance between the central meridian and the measured region is, the greater the error will be. The relative error of the area calculation was calculated. Results were corrected. Conclu- sions show that： the area correction played a role in reducing errors. |
| Keywords: | GPS Gauss projection area calculation area of deformation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |