RTK GPS与数字测深仪相结合进行水下地形测量

Survey of Underwater Topography Combine RTK GPS with Digital Echosounder

随着GPS技术的不断发展,RTK技术的出现,以及计算机技术的高速发展,使得平面定位技术实现了高精度、自动化、数字化、实时化,而随着测深技术的数字化、自动化,为水下地形测量的数字化、自动化提供了基础,为工程水文勘测提供了先进的手段。本文就全自动数字水下地形测量系统的组成、工作原理、作业方法进行了介绍,并根据工程实际,对其测量精度、误差来源进行了分析。

Along with the development of GPS technology, the appearance of RTK, and the rapid development of computer technology, plane position technology realizes high precision, automatization, digitisation, and real time. And along with the digitization and automatization of measure depth technology, they provide the basis of digitization and automatization for underwater topometry, provide the advanced measure for hydrographic survey. This paper introduces the makeup, working theory, job method of the full self-motion digital underwater topometry system, and according to the engineering practicality, analyses the survey precision and the error source.