中文摘要：

ITRF2014是地球参考系的最新实现。该框架利用正弦函数估计负荷对台站位置的季节性效应,与ITRF2008相比,可以得到更稳定、精确的速度场;另外,ITRF2014引入了震后形变模型,可以更好地分析测站的非线性运动。本文通过分析发现：ITRF2014其原点相较于ITRF2008,其符合精度为3.5 mm;两种技术（VLBI和SLR）在2010.0历元确定的尺度因子不符值为1.18 ppb;同时,局部测量解与空间大地测量解解算的本地连接向量仍存在较大不符。

英文摘要：

ITRF2014 is the latest realization of International Earth Reference System, which exploits sinusoidal functions to estimate seasonal （annual and semi-annual） loading effects on station positions, helping to achieve a more stable and accurate velocity field compared with ITRF2008. Additionally, having been introduced into ITRF2014, Post-Seismic Deformation （PSD） model will be helpful to better analyzing the non-linear displacement of stations. By analyzing, the framework origin, compared with ITRF2008, reaches an uncertainty of 3.5 mm and the scale, determined by SLR and VLBI, has a discrepancy of 1.18 ppb at 2010.0 epoch. In terms of local ties, the discrepancies between solutions from local survey and space geodesy still stand large.