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Tests of relative vertical offsets for several types of GPS receiver antenna phase centers 被引量:2
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作者 Hao Ming Qin Shanlan +2 位作者 Wang Qingliang Wang Jianhua Zhou Lin 《Geodesy and Geodynamics》 2015年第5期392-395,共4页
The correction for antenna phase center is considered in processing Global Positioning System (GPS) data collected from a network of GPS ultra-short baselines. Compared with the leveling measurements, the GPS result... The correction for antenna phase center is considered in processing Global Positioning System (GPS) data collected from a network of GPS ultra-short baselines. Compared with the leveling measurements, the GPS results show that the relative vertical offsets for the pairs of GPS receiver antenna phase centers still exist, although absolute calibration of the antenna phase center variations (PCVs) has been considered. With respect to the TPS CR.G3 antenna, the relative vertical offset for the LEI AT504 antenna is 8.4 mm, the offset for the ASH701945C_M antenna is 5.5 mm, and those for the ASHY00936E_C and ASH701945B_M antennas are approximately between 2 mm and -3 mm. The relative offsets for the same type of antennas are approximately 1 mm. By correcting the absolute PCVs, the existing relative offset becomes negligible for horizontal positioning. 展开更多
关键词 Global Positioning System (GPS) Antenna phase center Phase center variation vertical offsets Horizontal offset Leveling Crustal movement vertical velocity
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