利用GAMIT进行基于CORS的GNSS静态数据处理

Using the GAMIT to Do a CORS-Based GNSS Static Data Processing

随着CORS技术的发展与成熟,越来越多的CORS站网融合为更大规模的区域网,这需要能够进行大规模、长基线的GNSS静态数据处理。本文结合实际算例,论述GAMIT软件在基于CORS的大规模静态数据处理中的实现方法,并与TBC软件进行对比,从实施流程、解算效率、基线解算精度等方面进行对比,分析两者差异。通过分析研究得出:GAMIT软件在大规模远距离GNSS基线解算中较其他商业软件更具优势,效率更高、精度更好;当基线长度达到180km左右时基线相对精度能达到10^-7~10^-9量级,高于其他普通商业软件1个数量级。

With the development and maturity of CORS technology,more and more CORS networks are converging into large-scale regional networks, which requires the ability to do large-scale and long baseline GNSS static data processing.Combined with practical example,this paper discusses how to use GAMIT software to complete large-scale static data processing based on CORS,and compared with TBC software, the implementation process, calculation efficiency, baseline calculation accuracy and other aspects of comparison, analysis of the difference between the two.The analysis shows that the GAMIT software has more advantages, more efficient and more accurate than any other business software in the large-scale long-distance GNSS baseline solution,and When the baseline length reaches about 180 km, the relative accuracy of the baseline can reach 10 ^-7 ~10 ^-9 , one order of magnitude higher than other common commercial software.