In this research, we applied the Global Navigation Satellite System (GNSS) with Global Positioning System (GPS) to create new geodetic network, which is referred to ITRF2000. GPS observation data in 2010 and 2012 were used for network adjustment by Least Square Method (Minimally Constrained Adjustment and Fully Constrained Adjustment), then adjusted coordinates were used to determine updated magnitude and direction.
Uthen Jamrus and Hui Deng, "The magnitude and direction movement in Thailand based on Global Positioning System (GPS)," Proc. SPIE 10005, Earth Resources and Environmental Remote Sensing/GIS Applications VII, 100050B (Presented at SPIE Remote Sensing: September 27, 2016; Published: 18 October 2016); https://doi.org/10.1117/12.2242017.
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