The key technology and application of parameter optimization combined CUBE and surface filter

• Main Authors: ZHAO Dineng, WU Ziyin, LI Jiabiao, ZHOU Jieqiong, ZHANG Tiansheng, LIU Yang, ZHU Chao, YU Wei
• Format: Article
• Language: zho
• Published: Surveying and Mapping Press
• Series: Acta Geodaetica et Cartographica Sinica
• Subjects: multi-beam bathymetry; CUBE algorithm; parameter optimization; algorithm principle; mathematical model
• Online Access: http://html.rhhz.net/CHXB/html/2019-2-245.htm

CUBE (combined uncertainty and bathymetry estimator) is a widespread algorithm in the world to automatically detect and process multi-beam sounding outliers. While, little is known about its core algorithms and parameters, which is not good for the localization of this technology. In this paper, the basic principle, mathematical model, key parameters and processing steps of CUBE algorithm are elaborated. Then a method of parameter optimization selection combining CUBE and surface filter is established. And an example is presented, in which optimized parameters are selected by choosing typical bathymetric area, parameter test, comparative analysis and etc. And the optimized parameters are verified with the observed data in the Taiwan Banks. The results show that the optimized parameters can effectively improve the accuracy and efficiency of automatic processing of multi-beam data. The technology in this paper can provide reference for deepening research and development of domestic multi-beam sounding processing software and multi-beam data processing.