| 航空重力测量中基准站与测线的距离对精度的影响 |
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| 引用本文： | 孙军峰,朱命琪.航空重力测量中基准站与测线的距离对精度的影响[J].测绘信息与工程,2014(1):40-42. |
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| 作者姓名： | 孙军峰 朱命琪 |
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| 作者单位： | 61365部队; |
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| 摘 要： | 简要介绍了航空重力测量中基准站的布设原则，结合2010年某地区的实际测量数据分析了基准站与测线的距离对航空重力测量的精度的影响。实际数据验证表明，基准站距离测线360km时，其交叉点重力异常不符值标准差可以达到±2．0816mGal，其精度符合规范要求，所以在GPS基准站布设困难的地区，可以依据测区的具体情况适当地放宽GPS的布设位置和距离。
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| 关 键 词： | 航空重力测量 基准站 重力异常不符值中图法 |
Influence Caused by the Distance Between Reference Station and Line to the Accuracy of Airborne Gravity Survey |
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| SUN Junfeng,ZHU Mingqi.Influence Caused by the Distance Between Reference Station and Line to the Accuracy of Airborne Gravity Survey[J].Journal of Geomatics,2014(1):40-42. |
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| Authors: | SUN Junfeng ZHU Mingqi |
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| Institution: | 1365 Troops,Zhongshan Rroad Tianjin 300140,China) |
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| Abstract: | This paper gives a brief introduction of the reference station setup principle. And together with the actual observed data it analyzes the influence caused by the distance between reference station and line to the accuracy of airborne gravity survey. The result shows that when the distance is 360 km, the standard derivations of the crossing point discrepancy gravity anomaly is ＋2.0816 reGal, which is up to standard. So at the area, it is hard to setup GPS reference station, and it is necessary to loosen the distance principle to setup GPS station. |
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| Keywords: | airborne gravity survey reference station discrepancy gravity anomaly |
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