Tests of relative vertical offsets for several types of GPS receiver antenna phase centers  

作　　者：Hao Ming Qin Shanlan Wang Qingliang Wang Jianhua Zhou Lin 

机构地区：[1]Second Monitoring and Application Center,China Earthquafee Administration

出　　处：《Geodesy and Geodynamics》2015年第5期392-395,共4页大地测量与地球动力学（英文版）

基　　金：supported by the Science for Earthquake Resilience(XH14070Y,XH15064Y);the China NationalSpecial Fund for Earthquake Scientific Research in Public Interest(201208009)

摘　　要：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.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.

关 键 词：Global Positioning System （GPS） Antenna phase center Phase center variation Vertical offsets Horizontal offset Leveling Crustal movement Vertical velocity 

分 类 号：P228.4[天文地球—大地测量学与测量工程] TP368.1[天文地球—测绘科学与技术]