声学多普勒流速剖面仪（ADCP）具有测量速度快、可获得三维流速剖面等优势，在流速测量和水文测验中被广泛采用。但受复杂测量环境及仪器性能影响，ADCP测量结果往往难以全剖面、高精度获取。为此，项目在多源信息融合的基础上提出一种ADCP流速全剖面高精度重构方法。首先，替代现有ADCP流速测量的船速和方位基准数学模型，提出一种基于自适应卡尔曼滤波的多源信息融合方法，获取准确、稳健的船速和方位基准；其次，研究声速、姿态变化以及流场差异对实测流速剖面及其空间位置的影响机理，构建流速剖面精确重构模型；再次，根据重构的实测流速剖面的垂向梯度变化规律，研究不同时态、流态下上、下盲区流速的最优模型；最后，将重构的实测区流速剖面和最优模型确定的盲区流速融合，实现ADCP流速全剖面、高精度重构。项目研究成果提高ADCP的测量精度，拓展ADCP的应用范围，为水文科学研究及水利工程应用提供理论和方法支撑。

Acoustic Doppler Current Profiler (ADCP) has advantages of high precision and can obtain three-dimensional velocity profile so that it is widely adopted in flow velocity measurement and hydrological survey. However, due to complex measurement circumstances and influence on performances of instrument, in most cases it is difficult to acquire in a high precision and a full profile of measuring result. To this end, this project plans to reconstruct velocity profile on the basis of multi-source information fusion to solve this problem. The project firstly studies on systemic substitute methods of external boat speed and boat orientation reference, and according to that, a universal and accurate flow measurement method of ADCP based on information fusion of multisource external sensors has proposed. After that, the project studies on attitude change and deviation of sound velocity’s correction model of depth cell of velocity and spatial position of ADCP, according to that the flow velocity profile reconstruction method is put forward. What’s more, combining vertical gradient change rules of flow velocity with common velocity distribution models, a self-adaption determination method of flow velocity model in blind zone by different tense and flow regime is give out. Finally, combining reconstructed ADCP flow profile with flow velocity of blind zone that determined by self-adoption method, the full and high-precision profile of flow velocity is obtained. The project study improves the precision of ADCP measurement, expands the application of ADCP, and provides theoretical and methodological support for applications in hydraulic engineering and research of hydrologic sciences.