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 dif-ferent operating frequencies and GPS speed data is quantitatively compared,and the reason why the flow measure-ment 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.
关键词
多普勒流速剖面仪/全球定位系统/流速剖面/比测
Key words
acoustic doppler current profile/global positioning system/velocity profile/comparison
维普
万方数据