gamit版本10.7，已安装最新的升级包。
在处理2019年数据发现如下警告信息。虽然可以给出基线结果，但大量的警告信息很显然不正常。另外，目前在采集数据的设备没有变化，如果有变化的话，可能是天上的卫星发生了一定变化，数据中包含了北斗新型信号（北斗三代）。北斗二代数据在2018年和2019年的数据中都存在。
STATUS :191126:1427:10.0 MODEL/open: Loading/Met (U-) File : uhlj19.137
WARNING:191126:1427:10.0 MODEL/get_svantpcv: Current code does not support different SV L1/L2 PCOs, set equal for now
WARNING:191126:1427:10.0 MODEL/get_svantpcv: Current code does not support different SV L1/L2 PCOs, set equal for now
WARNING:191126:1427:10.0 MODEL/get_svantpcv: Current code does not support different SV L1/L2 PCOs, set equal for now
WARNING:191126:1427:10.0 MODEL/get_svantpcv: Current code does not support different SV L1/L2 PCOs, set equal for now
WARNING:191126:1427:10.0 MODEL/get_svantpcv: Current code does not support different SV L1/L2 PCOs, set equal for now
WARNING:191126:1427:10.0 MODEL/get_svantpcv: Current code does not support different SV L1/L2 PCOs, set equal for now
WARNING:191126:1427:10.0 MODEL/get_svantpcv: Current code does not support different SV L1/L2 PCOs, set equal for now
WARNING:191126:1427:10.0 MODEL/get_svantpcv: Current code does not support different SV L1/L2 PCOs, set equal for now
WARNING:191126:1427:10.0 MODEL/get_svantpcv: Current code does not support different SV L1/L2 PCOs, set equal for now
WARNING:191126:1427:10.0 MODEL/get_svantpcv: Current code does not support different SV L1/L2 PCOs, set equal for now
WARNING:191126:1427:10.0 MODEL/get_svantpcv: Current code does not support different SV L1/L2 PCOs, set equal for now
WARNING:191126:1427:10.0 MODEL/get_svantpcv: Current code does not support different SV L1/L2 PCOs, set equal for now
WARNING:191126:1427:10.0 MODEL/get_svantpcv: Current code does not support different SV L1/L2 PCOs, set equal for now
WARNING:191126:1427:10.0 MODEL/get_svantpcv: Current code does not support different SV L1/L2 PCOs, set equal for now
WARNING:191126:1427:10.0 MODEL/get_svantpcv: Current code does not support different SV L1/L2 PCOs, set equal for now
WARNING:191126:1427:10.0 MODEL/get_svantpcv: Current code does not support different SV L1/L2 PCOs, set equal for now
WARNING:191126:1427:10.0 MODEL/get_svantpcv: Current code does not support different SV L1/L2 PCOs, set equal for now
WARNING:191126:1427:10.0 MODEL/get_svantpcv: Current code does not support different SV L1/L2 PCOs, set equal for now
WARNING:191126:1427:10.0 MODEL/get_svantpcv: Current code does not support different SV L1/L2 PCOs, set equal for now
WARNING:191126:1427:10.0 MODEL/get_svantpcv: Current code does not support different SV L1/L2 PCOs, set equal for now
WARNING:191126:1427:10.0 MODEL/get_svantpcv: Current code does not support different SV L1/L2 PCOs, set equal for now
WARNING:191126:1427:10.0 MODEL/get_svantpcv: Current code does not support different SV L1/L2 PCOs, set equal for now
在2018年没有这个报警信息。
关于这个pco有这样一个说明：
The HI value can refer to any physical
point on the antenna provided that the relationship of the measured point to the antenna
reference point (ARP) used for deriving the phase-center offset (PCO) and phase-centr
variations is given in gg/tables/hi.dat . In processing GAMIT will use the height of the ARP
together with the PCO/PCV provided in the antmod.dat (ANTEX file) to relate the (elevation-
and azimuth-depenndent L1 and L2 phase centers to the monument.
刚发现，最新的更新包又给出来了（incremental_updates.191125.tar.gz），下载更新后，在重新处理一下，看能否解决。
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