摘要
作为当今世界上最先进的测流仪器,水平式声学多普勒流速剖面仪(Horizontal Acoustic Doppler Current Profiler,H-ADCP)因其精度高、速度快等突出优势在河流中的应用越来越广泛,但在航运业发达地区,由于受船行波的影响,很难得到稳定可靠的流速数据,阻碍了HADCP在平原河网地区的应用和推广。目前技术上很难做到完全消除船行波的影响,本文将HADCP应用在平原河网地区对流速进行测量,并分析了船行波对测量精度的影响。从H-ADCP设备选型、测量和安装方式、测量预处理、数据后处理等多方面入手,可以有效消减船行波对H-ADCP的影响,从而提高测流精度。同时,通过实验测量断面一天内平均流速变化情况,得到受船行波影响后的流速波形,然后采用数据处理手段,验证了所提方法的可行性。
As the most advanced flow measuring instrument in the world today,the Horizontal Acoustic Doppler Current Profiler(H-ADCP)is increasingly widely used in rivers due to its outstanding advantages such as high accuracy and fast speed.However,in areas with developed shipping industry,it is difficult to obtain stable and reliable flow velocity data due to the influence of ship waves,which hinders the application and promotion of H-ADCP in plain river network areas.To completely eliminate the influence of ship waves,it is currently difficult to achieve technically.This article applies a H-ADCP to measure flow velocity in plain river network areas and analyzes the impact of ship waves on measurement accuracy.By starting from various aspects such as the selection of H-ADCP equipment,measurement and installation methods,measurement preprocessing,and data post-processing,the impact of ship waves on H-ADCP can be effectively reduced,thereby improving the accuracy of flow measurement.And through experimental measurement of the average flow velocity variation of the cross-section within a day,the flow velocity waveform affected by ship waves was obtained.Then,data processing methods were used to verify the feasibility of the proposed method.
作者
赵爱博
徐大伟
奚子惠
刘明
ZHAO Aibo;XU Dawei;XI Zihui;LIU Ming(Jiangsu Coastal Research Center,Nanjing 210036,China;State Key Laboratory of Marine Geology,Tongji University,Shanghai 200092,China)
出处
《海洋技术学报》
2024年第1期47-54,共8页
Journal of Ocean Technology
基金
江苏省海洋科技创新项目(JSZRHYKJ20230)。
关键词
H-ADCP
船行波
平原河网
水平式
高斯滤波
多普勒效应
测流精度
H-ADCP
ship waves
plain river network
horizontal
Gaussian filtering
Doppler ffect
flow measurement accuracy
作者简介
赵爱博(1984-),男,硕士,高级工程师,主要从事海洋观测、海洋预报研究。E-mail:13913309765@139.com;通讯作者:徐大伟(1981-),男,硕士,高级工程师,主要从事海洋装备研发与集成研究。E-mail:hzocean@tongji.edu.cn。
