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首页> 外文期刊>Journal of Hydraulic Engineering >Estimating Bias Limit of Moving-Boat ADCP Streamflow Measurements
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Estimating Bias Limit of Moving-Boat ADCP Streamflow Measurements

机译:估算动船ADCP流量测量的偏差极限

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摘要

This paper presents a methodology for estimating the bias limit of moving-boat acoustic Doppler current profiler (ADCP) streamflow measurements based on the classical error analysis techniques. The standard deviation (i.e.,one-sigma) of the probability distribution of bias errors is defined as the bias limit. The presented method was applied to two types of data sets, as examples of applications. The first example uses 110 data sets collected in the comparison tests of different ADCP models on a wide variety of rivers and streams, located mostly in the United States. The second example uses 44 data sets collected in an ADCP regatta conducted with different ADCP models on a stream in New Zealand. The estimated bias limits from these data sets should have accounted for most, if not all, unknown and unknowable bias errors encountered in these measurements. The results from this study may be used to determine a nominal bias limit for moving-boat ADCP discharge measurements. (C) 2018 American Society of Civil Engineers.
机译:本文提出了一种基于经典误差分析技术的估算移动艇声学多普勒电流剖面仪(ADCP)流量测量的偏差极限的方法。偏差误差的概率分布的标准偏差(即,一个σ)被定义为偏差极限。所提出的方法被应用于两种类型的数据集,作为应用实例。第一个示例使用了110种数据集,这些数据集是在大多数位于美国的各种河流和不同河流的不同ADCP模型的比较测试中收集的。第二个示例使用在ADCP帆船赛中收集的44个数据集,这些数据集是在新西兰的流中使用不同的ADCP模型进行的。从这些数据集估计的偏差极限应该已经考虑了这些测量中遇到的大多数(如果不是全部)未知和不可知的偏差误差。这项研究的结果可用于确定动艇ADCP排放测量的标称偏差极限。 (C)2018美国土木工程师学会。

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