多波束测深系统在航道测量中的关键问题探讨

介绍了多波束测深系统与GPS RTK技术集成的工作原理及优势,并以秦皇岛港航道疏浚前后多波束扫海测量为例,论述该作业模式中的几个关键问题,即在声速改正和参数校准的前提下,RTK三维水深测量省去传统水深测量中繁琐的水位测量,能够自动消除波浪起伏和动态吃水变化的误差影响。航道疏浚结果表明,在近海海域该方法可以取代有验潮的常规水深测量,既能指导疏浚施工,又能方便检查疏浚结果,为今后的相关工作提供参考。

Key Issues About the Multibeam Bathymetric System in Channel Survey

This paper introduces the multibeam sounding system,along with the working principle and advantages of GPS RTK technology integration.To take the multibeam scanning before and after the waterway dredging at Qinhuangdao port as the example,several key problems in the operation mode are discussed,namely on the premise of sound velocity correction and parameter calibration,RTK three-dimensional depth can omit water level measurement of the traditional depth measurement,and automatically eliminate the error impact of the wave and the dynamic draft changes.Waterway dredging results show that the method can replace the normal water depth measurement,which can guide construction,dredging and be convenient for inspecting dredging results and provide a reference for the related work in the future.