摘要
根据声学多普勒流速剖面仪(ADCP)流速测量原理,提出一种ADCP走航式湖上比测试验方法,采用高精度GPS定位计算的底跟踪速度作为流速基准,对同组相同型号ADCP测量流速的稳定性与一致性进行比较,并定量比较不同工作频率ADCP测量流速数据与GPS航速数据的差异性,分析低频ADCP湖上测流受回波信号影响较大的原因,为后续开展ADCP便捷式湖上比测试验提供参考。
Based on the velocity measurement principle of acoustic Doppler current profilers(ADCP),an ADCP sailing comparison test method on lake was proposed.The bottom tracking velocity calculated by high precision GPS positioning was used as the velocity reference,and the stability and consistency of the measured velocity of the same type of ADCP in the same group were compared.The difference between the velocity data measured by ADCP at different operating frequencies and GPS speed data is quantitatively compared,and the reason why the flow measurement on lake with low frequency ADCP is greatly affected by echo signal is analyzed,which provides reference for the follow-up ADCP convenient comparison test on lake.
作者
滕林苹
张素伟
王粲
TENG Linping;ZHANG Suwei;WANG Can
出处
《计量与测试技术》
2024年第3期76-78,共3页
Metrology & Measurement Technique
关键词
多普勒流速剖面仪
全球定位系统
流速剖面
比测
acoustic doppler current profile
global positioning system
velocity profile
comparison
