全球定位系统2023，Vol.48Issue(6)：52-57,6.DOI:10.12265/j.gnss.2023131
地形导航多波束测深综合效应的邻域改正技术
Neighborhood correction technique for Coupling effects of multi-beam bathymetry
摘要
Abstract
Aiming at the influence of angular beam-width and terrain effect on bathymetry in multi-beam sonar system.A correction method of depth survey based on average slope of terrain is proposed to solve the problem of water depth data distortion caused by different terrain conditions.Firstly,a depth measurement model was established based on the principle of multi-beam system.The average slope between the measurement point and 8 points around was used to estimate the inclination angle of the terrain at that point.Different degrees of water depth correction were made by the relationship between depth measured and seabed to obtain the real depth at the survey point.During the simulation process,the average slope of the terrain is estimated by calculating the average slope in eight directions around the survey point.The method is verified with actual terrain.Results show that it is highly practical and has significant correction effects on the impact of beam angle and terrain effects in bathymetric survey.关键词
邻域改正/多波束声纳测深/地形平均坡度/波束角效应/地形效应Key words
neighborhood bathymetry correction/multi-beam sonar bathymetry/average slope of ter-rain/beam width effect/terrain effect分类
天文与地球科学引用本文复制引用
于家成,姜凯文,赵红颖..地形导航多波束测深综合效应的邻域改正技术[J].全球定位系统,2023,48(6):52-57,6.基金项目
河北省高等学校科学技术研究项目(2C2016011) （2C2016011）
国家重点研发计划(2022YFF0904403) （2022YFF0904403）
国家自然科学基金重点项目(42130104) （42130104）
