Designing GNSS HUMGAdj software package for surveying and mapping

Abstract

GNSS technology has made great contributions to the development of surveying and mapping in Vietnam. Many useful GNSS processing software packages have been created and widely used all over the world. However, since these software programs only have input and output, the new users without expert theoretical knowledge (especially new students) can not understand the principle or interfere with the process to obtain explicit results at each step. Therefore, the research team has built the GNSS-HUMGAdj software package to visually illustrate GNSS data processing steps for students to use. In the design stage, the group has learnt the experience in programming GNSS processing software, inheriting published GNSS data processing algorithms. In addition, some algorithms such as converted GNSS baseline in resolving the relative positioning problem, adjusting the receiver antenna height, and the effect caused by the change of distance over time were developed in the software.

Exploring the training results of machine learning models using different batch sizes and epochs: A case study with GNSS time series data

“…With the establishment continuosly operation reference station (CORS), users are provided with time-series data. The data provided by CORS station networks can be applied in various fields such as tectonic plate movement monitoring, sea level monitoring, atmospheric research [8] etc. Data collected by CORS stations firstly need to be processed using high-precision GNSS data processing software such as Gamit/Globk [9], Bernese [10] etc.…”