A Method for the Removal of Ray Refraction Effects in Multibeam Echo Sounder Systems
To a multibeam echo sounder system (MBES), under water sound refraction plays an important role in depth measure-ment accuracy, and errors in sound velocity profile lead to inaccuracies in the measured depth (especially for outer beams). A method is developed to estimate the sound velocity profile based on the depth measured by vertical beam. Using this depth and other pa-rameters, such as t (sound pulse propagation time), 0 (beam inclination angle), etc. We can estimate a simple sound velocity profile with which the depth error has been reduced. This method has been tested with a real dataset acquired in the East China Sea.
作 者： DING Jisheng ZHOU Xinghua TANG Qiuhua 作者单位： First Institute of Oceanography, SOA, Qingdao 266061, P. R. China 刊 名： 中国海洋大学学报（英文版） ISTIC 英文刊名： JOURNAL OF OCEAN UNIVERSITY OF CHINA 年，卷(期)： 2008 7(2) 分类号： P7 关键词： multibeam echo sounder system acoustic ray refraction equivalent sound velocity profile