| 两种型号RDIADCP测速精度分析 |
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| 引用本文： | 李占桥,田志光,吴宝勤.两种型号RDIADCP测速精度分析[J].海洋测绘,2012,32(6):57-59. |
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| 作者姓名： | 李占桥 田志光 吴宝勤 |
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| 作者单位： | 1. 海军海洋测绘研究所,天津,300061
2. 92899 部队,浙江宁波,315200 |
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| 摘 要： | 关于多普勒海流剖面仪（ADCP）测速精度一直没有明确认识，基于差分ADCP底跟踪船速与差分GPS测量船速进行比较，统计分析了ADCP测速精度，并利用直线拟合的方法，给出了两种型号RDIADCP的测速误差。结果表明，不同航速下38kHzADCP测速精度较高，且不受船速影响；300kHzADCP底跟踪船速始终大于GPS船速，误差随船速呈线性增加。
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| 关 键 词： | 海洋测绘 海流 ADCP 精度分析 |
Analysis on Velocity Measuring Accuracy of RDI ADCP |
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| LI Zhanqiao,TIAN Zhiguang,WU Baoqin.Analysis on Velocity Measuring Accuracy of RDI ADCP[J].Hydrographic Surveying and Charting,2012,32(6):57-59. |
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| Authors: | LI Zhanqiao TIAN Zhiguang WU Baoqin |
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| Institution: | 1(1.Naval Institute of Hydrographic Surveying and Charting,Tianjin 300061,China; 2.92899 Troops,Ningbo 315200,China) |
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| Abstract: | There was no explicit understanding about ADCP＇ s velocity measuring accuracy. This paper compared two ships＇ velocities which were mersured by ADCP-track and GPS, and then the paper analyzed the ADCP＇ s velocity measuring accuracy under different ship velocities. The paper draws up the velocity measuring errors of the two types of RDI ADCP based on the method of straight line matching. The result indicates that the 38kHz ADCP＇s velocity measuring accuracy was better and it is not influenced by ship-velocity; while the 300kHz ADCP＇ s track-velocity is faster than GPS-velocity all the time, and the error is increasing linearly with shipvelocity. |
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| Keywords: | hydrographic surveying and charting ocean current acoustic doppler current profilers iaccuracy analysis |
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