| GPS网投影变形及消去投影变形的方法 |
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| 引用本文： | 程新中,许铁林. GPS网投影变形及消去投影变形的方法[J]. 四川测绘, 2009, 32(1): 35-38 |
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| 作者姓名： | 程新中 许铁林 |
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| 作者单位： | 程新中,CHENG Xin-zhong(中冶集团武汉勘察研究院有限公司,湖北,武汉,430080);许铁林,XU Tie-lin(中冶集团成都勘察研究总院,四川,成都,610031) |
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| 摘 要： | 利用GPS技术进行测量可以不受通视、气候等条件的限制，不仅大大提高了测量工作的效率，而且大大降低了劳动强度。GPS技术虽然是一种全新的技术，但是其基本的理论仍然脱离不了传统测绘理论基础。本文对坐标系统转换进行了介绍，并重点针对高斯投影变形和高程面异常引起的控制网误差进行分析，并通过实例提出了工程测量中变形的简易解决方法。
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| 关 键 词： | 全球定位系统 坐标系统 高斯投影 长度变形 |
Exploration of Projection Distortion to GPS Net and the Method of How to Eliminate the Projection Distortion |
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| CHENG Xin-zhong XU Tie-lin. Exploration of Projection Distortion to GPS Net and the Method of How to Eliminate the Projection Distortion[J]. Surveying and Mapping of Sichuan, 2009, 32(1): 35-38 |
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| Authors: | CHENG Xin-zhong XU Tie-lin |
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| Affiliation: | 1.Wuhan Surveying-geotechnical Research Institute of China Metallurgical Construction Group;Wuhan 430080;China;2.Chengdu geotechnical Investigation and Surveying Institute MCC;Chengdu 610031;China |
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| Abstract: | It is not limited by some conditions,such as visible or not,climate and so on,to carry out surveying with GPS.Not only is the efficiency improved greatly,but the labor intensity is reduced greatly.Although the GPS technology is one kind of brand-new technology,its basic theory still could not be separated from the traditional survey theories.This article carried on to the coordinates system transformation introduced that and key aimed at the control net error which the Gauss projection distortion and the el... |
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| Keywords: | Global positioning system Coordinates system Gauss projection Length distortion |
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