基于Hypack2014的GNSS PPK三维水深测量

摘要

GNSS PPK (post processing kinematic)技术属动态后处理技术,不受电台无线电传播距离的限制,有效作用距离可达80 km.为解决沿海长航道水深测量需在海上设置定点验潮站的难题,提出基于Hypaek 2014的GNSS PPK三维水深测量方法.该方法无需进行水位提取与水位拟合,提高了水深测量精度;且采用现有商业软件TBC和Hypack,避免了繁琐的二次开发.介绍GNSS PPK定位原理及GNSS PPK三维水深测量工作原理,阐述基于Hypack 2014的GNSS PPK三维水深测量的实施方法,在沿海长航道水深测量方面具有推广价值.%GNSS PPK(post processing kinematic)is a dynamic post-processing technology which is free from the restrictions of radio transmission distance,and the distance can reach 80 km.In order to solve the problem of the bathymetric survey in the coast long channel,we propose the method of GNSS PPK 3D bathymetric survey,which improves the accuracy of the bathymetric survey without tide extraction and tide fitting,and avoids the cumbersome secondary development using the existing commercial software TBC and Hypack.The principle of the GNSS PPK positioning and GNSS PPK 3D bathymetric survey is introduced,and the implementation method of GNSS PPK 3D bathymetric survey based on Hypack 2014 is expounded.It is valuable in the bathymetric survey of the coast long channel.