哈尔滨工程大学学报Issue(1)：46-50,5.DOI:10.3969/j.issn.1006-7043.201310060
顾及姿态角的多波束声线精确跟踪方法
A precise multibeam sound ray tracking method taking into account the attitude angle
摘要
Abstract
The assigned beam initial incident angle provided by MBS( multibeam bathymetry system) is adopted by the traditional sound ray tracking method regarding the vessel in the horizontal status, which ignores or does not consider completely the impacts of vessel attitude angles, and lead obvious error to the determination of beam foot⁃print position.Aiming at the problem. In order to reduce this kind of significant error, an accurate method for sound ray tracking, which considers vessel attitude angles are put forward in this paper. In the proposed method, the actu⁃al propagation profile is given by means of studying the actual status of MBS transducer impacted by vessel attitude and the actual initial incidence angle of MBS beam is derived by the calculation model. By integrating the sound ve⁃locity profile, the accurate positioning of beam footprint on seabed is achieved by constant⁃gradient sound ray track⁃ing method. By comparing the beam footprint coordinate precision calculated by traditional sound ray tracking meth⁃od and the precise method of sound ray tracking in experiment, a conclusion can be drawn that the precise method of sound ray tracking can overcome the deficiency of the traditional sound ray tracking. This improves significantly the precision for multi⁃beam bathymetry.关键词
多波束测深系统/波束脚印/初始入射角/姿态角/常梯度声线跟踪Key words
multibeam bathymetric system(MBS)/beam footprint/initial incident angle of beam/attitude angle/constant-gradient sound ray tracking分类
天文与地球科学引用本文复制引用
何林帮,赵建虎,张红梅,王晓,严俊..顾及姿态角的多波束声线精确跟踪方法[J].哈尔滨工程大学学报,2015,(1):46-50,5.基金项目
国家自然科学基金资助项目（41176068，0976061，40776048，41376109）． （）
