摘要
针对多波束水深测量中未明确定义表层声速限差范围,导致在数据采集过程中无法实时监控表层声速误差的问题,结合多波束数据采集与归算流程,分析并推导了SSP误差影响下的波束指向角与点位归算误差模型。结合数值计算,研究了不同水深下测深误差随SSP之间的变化规律与量级大小,从而针对SSP限差范围提出合理化建议,对提高数据质量具有一定应用价值。
The problem that the surface sound velocity difference range was not clearly defined in the multibeam sounding,which leads to the inability to monitor the surface sound speed error in real time during the data acquisition process.Combined with the multi-beam data acquisition and reduction process,the error model of beam direction angle and point position under the influence of SSP error is analyzed and deduced.Through numerical calculations,the variation law and magnitude of the sounding error with SSP under different water depths are studied,and reasonable suggestions are put forward for the SSP tolerance range,which has certain application value for improving data quality.
作者
肖付民
黄毅
张永厚
边刚
兰莉莎
XIAO Fumin;HUANG Yi;ZHANG Yonghou;BIAN Gang;LAN Lisha(Department of Military Oceanography and Hydrography,Dalian Naval Academy,Dalian 116018,China;91001 Troops,Beijing 100841,China;Chart Information Center,Tianjin 300450,China)
出处
《海洋测绘》
CSCD
北大核心
2021年第1期27-30,共4页
Hydrographic Surveying and Charting
基金
国家自然科学基金(41876103,41576105)。