H-ADCP回波强度分析算法研究与应用

Research and Application of H-ADCP Echo Intensity Analysis Algorithm

平原河道普遍存在行船、淤积等问题,对换能器发射的声束产生遮挡,从而导致测流精度受到影响。因此,在对太湖流域47个水平声学多普勒流速剖面仪(H-ADCP)在线测流站点声束遮挡情况分析的基础上,提出了一套H-ADCP回波强度分析算法,实现对H-ADCP在线自动测流的状态监测,自动剔除遮挡测次、发现断面淤积等声束遮挡问题,以辅助测站运行维护工作开展,保障在线测流数据有效性。

Due to the common problems of navigation and deposition in plain river, the acoustic beam emitted by the transducer is blocked, which affects the accuracy of flow measurement. Based on the analysis of the acoustic beam occlusion of 47 H-ADCP on-line flow measurement stations in Taihu Basin, this paper proposes a set of H-ADCP echo intensity analysis algorithm, which can realize the condition monitoring of H-ADCP on-line automatic flow measurement, screen out anomalous measurement times, discover cross-section siltation and other sound beam shielding problems, assist the operation and maintenance of the stations, and ensure the effectiveness of on-line flow measurement data.