【摘 要】
：
It is of great importance to estimate zenith tropospheric delay(ZTD)and retrieve precipitable water vapor(PWV)using ground-based GNSS remote sensing technology.At present,the ground-based GNSS technol
【机 构】
：
College of Geology Engineering and Geomatics,Chang'an University,Xi'an,Shanxi,China,710054
论文部分内容阅读
It is of great importance to estimate zenith tropospheric delay(ZTD)and retrieve precipitable water vapor(PWV)using ground-based GNSS remote sensing technology.At present,the ground-based GNSS technology is usually studied based on single GPS system.In this paper,the precise point positioning technology for combined multi-GNSS is carried out using the observation data of 30 MGEX tracking stations for one month.
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