多波束数据处理及潮汐影响改正  

Multi-beam data processing and tide correction

作　　者：刘亮 刘时桥 李兴锐 郭军 LIU Liang;LIU Shiqiao;LI Xingrui;GUO Jun(Haikou Marine Geological Survey Center of China Geological Survey,Haikou 570000,China;Guangzhou Marine Geological Survey of China Geological Survey,Guangzhou 510000,China)

机构地区：[1]中国地质调查局海口海洋地质调查中心,海南海口570000 [2]中国地质调查局广州海洋地质调查局,广东广州510000

出　　处：《交通科技与经济》2021年第2期57-62,共6页Technology & Economy in Areas of Communications

基　　金：中国地质调查局地调项目(DD20191027)。

摘　　要：在现代海洋环境中,高精度海底地形地貌资料的重要性越来越突出,在获取海底地形资料的众多方法中,多波束测深系统是获取高精度海底地形资料的重要途径。原始数据采集后,内业数据处理是获取数据成果的关键步骤。运用CARIS HIPS and SIPS V8.1软件包,结合南海某海域实测多波束数据内业处理流程,对多波束处理过程中的参数校正、声速与潮汐改正及噪声数据处理等重点流程进行分析,着重分析两种潮汐改正方式对成图的影响,对成果数据精度进行评价。根据成图效果可知,预报的潮汐数据能够满足数据处理的精度要求。In the modern marine environment,the importance of high-precision seabed topography data is becoming more and more prominent.Among the methods of obtaining seabed topography data,a multi-beam echosounding system is a very important way to obtain high-precision seabed topography data.Data processing is the key step to obtain data results after data collection.The CARIS HIPS and SIPS(v8.1 software package),combined with the multi-beam data processing process in the South China Sea area,is used to analyze the key processes in the process of multi-beam processing,such as parameter correction,sound velocity correction,tide correction and noise data processing,emphatically comparing the influence of two tide correction methods,and evaluating the final data accuracy.According to the result,the forecasting of tide data can satisfy the requirements of data processing accuracy.

关 键 词：多波束数据处理 潮汐改正 曲面滤波 精度评价 海洋测绘 

分 类 号：P229.1[天文地球—大地测量学与测量工程]