| 基于网络CORS技术在长江水道地形测量中的精度分析 |
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| 引用本文： | 曾勇,解祥成,许波,郝立新.基于网络CORS技术在长江水道地形测量中的精度分析[J].测绘与空间地理信息,2014(8):136-139. |
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| 作者姓名： | 曾勇 解祥成 许波 郝立新 |
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| 作者单位： | 长江水利委员会水文局荆江水文水资源勘测局,湖北荆州434002 |
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| 摘 要： | 目前,水道地形测量模式已基本定型于利用GPS测定水底点的平面位置,利用测深仪测定水底点的水深,附之以瞬时潮位或水位资料,获得点位的高程。随着各地连续运行卫星定位服务系统的投入运行,本文提出了一种无验潮模式下的水道地形测量模式,即不测定潮位或水位,而直接利用HBCORS的RTK测量技术,从而获得高精度的水底点高程。本文通过实际工程,用无验潮模式与传统模式在精度上进行对比,得出了该方法在精度上和效率上都有很大的提高,值得推广应用的结论。
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| 关 键 词： | 网络CORS 水道测量 精度 |
The Accuracy Discussion of CORS Survey Technique in Yangtze Estuary Channel Regulation Project |
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| ZENG Yong,XIE Xiang-cheng,XU Bo,HAO Li-xin.The Accuracy Discussion of CORS Survey Technique in Yangtze Estuary Channel Regulation Project[J].Geomatics & Spatial Information Technology,2014(8):136-139. |
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| Authors: | ZENG Yong XIE Xiang-cheng XU Bo HAO Li-xin |
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| Institution: | ( Jingjiang Survey Bureau of Hydrology and Water Resources, The Hydrological Bureau of Changjiang Water Resources Commission, Jingzhou 434002, China) |
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| Abstract: | The current waterway terrain model has basic finalize the measurement using GPS to determine the plane position at the bot -tom, using sounding analyzer to measure underwater point of water depth , attached to the instantaneous tide levels or water level mate-rial, get the point elevation .With the continuous running all over satellite positioning services to put into operation of the system , this paper puts forward a no tidal mode of waterways terrain measurement model , that is, not determine tide levels or water level , and di-rectly for the use of the HBCORS RTK measurement technology , assisted by attitude compensation , so as to achieve high precision at the bottom elevation .This article through the practical engineering , with no tidal model and the traditional mode in the accuracy is compared, and that the method in the accuracy and efficiency are greatly improved , popularization. |
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| Keywords: | CORS hydrographic survey accuracy |
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