姿态传感器在坐底式ADCP波阵列中的应用

摘要

ADCP wave tide equipment measures wave directional spectrum using ADCP wave gauge technique. Since broadband ADCP has unique measuring points array, it not only has high-precision measurement of wave directional spectrum just as traditional arrays, but also is easy to handle like buoy because ADCP is a single device. The inner attitude sensors( heading, pitch, roll) used in ADCP need real time measurement, when there is a large tilt in ADCP,tilt correction should be carried out based on measurement value of attitude sensors, there are two ways to do wave directional spectrum based on ADCP, beam velocity method (Radial) and water particle velocity method(UVW) carry out position correction and velocity correction separately. Attitude sensors used in wave directional spectrum estimation based on ADCP wave gauge is described in detail. Through three sets of data analysis,the significance of attitude sensors in wave directional spectrum measurement of ADCP wave gauge is verified.%ADCP波潮仪利用ADCP波阵列技术测量方向谱.由于宽带ADCP具有独特的空间测点阵列,所以不仅具备了传统阵列测量方向谱的高精度,同时由于ADCP是一个单体设备,像浮标一样有很好的操控性.ADCP内部的姿态传感器实时测量出ADCP的姿态偏角(航向、俯仰、横滚),当ADCP存在较大倾斜时,必须要进行基于姿态传感器测量值的倾斜修正,ADCP方向谱的2种方法:波束方向速度法(Radial)和水层速度法(UVW)分别进行位置修正和速度修正.阐述了姿态传感器在ADCP波阵列测量中的求解方法,通过选取的三组ADCP试验数据分析,验证了姿态传感器在ADCP波阵列测量方向谱的重要性.