The GNSS co-location experiment at Potsdam

The differences of atmospheric delays (Atmospheric ties) are theoretically affected by the height differences between antennas at the same site and the meteorological conditions. However, there is often a discrepancy between the expected zenith delay differences and those estimated from geodetic analysis. The purpose of this experiment is to investigate the possibility effects that could caused biases on GNSS atmospheric delays at co-location site.

理论上，大气延迟差（Atmospheric ties）受同一站点内各天线之间的高度差与气象条件共同影响。然而，预期的天顶延迟差与通过大地测量分析得到的估算结果之间往往存在偏差。本实验旨在探究可能对共址站点的全球导航卫星系统（Global Navigation Satellite System, GNSS）大气延迟引入偏差的潜在影响因素。