Abstract—

Observations at permanent stations of the Global Navigation Satellite System (GNSS) are directly related to global and local movements of the Earth’s crust and are also affected by various factors, such as the multipath effect and radio noise in the signal. Currently, the influence of such effects can be analyzed and excluded from further processing of GNSS observations. However, there are a number of GNSS stations that deserve more attention for the monitoring of operational stability, because they define the terrestrial implementation of the reference system. The Chernihiv station (CNIV, DOMES 15501M001), which is attributed to the class A for the definition of the European Reference Frame, is an example of such a GNSS station in the territory of Ukraine. In this article, the coordinate time series based on long continuous coordinate time series and the log file of the GNSS station Chernihiv is analyzed. The coordinates of the station during the operation of various equipment are compared, and conclusions about the stability of the station are made. It was found that the station has been working stably and has not had long interruptions in observations since its commissioning. The most significant changes that occurred at the station are associated with the change of equipment. The equipment at the station was changed three times: Trimble equipment was installed in 2005, it was replaced by NovAtel equipment in 2011, and Leica equipment was installed in 2013, which is still in operation. Analysis of the time series of this permanent station shows that there is a certain jump in the study of changes in coordinates simultaneous for all devices when the Leica equipment was installed, which is associated with the change of equipment, namely with a different system of mounting the antenna on the pole. However, in the study of coordinate residuals separately for each equipment, fluctuations in values in winter and summer are observed, which can be related to the structural deformation of the GNSS antenna.

中文翻译：

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分析来自 GNSS 站切尔尼戈夫 (CNIV) 的时间序列坐标

摘要-

全球导航卫星系统（GNSS）常设站的观测与地壳的全球和局部运动直接相关，也受多种因素的影响，如信号中的多径效应和无线电噪声。目前，可以分析此类影响的影响，并将其排除在 GNSS 观测的进一步处理之外。然而，有许多 GNSS 站在监测运行稳定性方面值得更多关注，因为它们定义了参考系统的地面实施。切尔尼戈夫站 (CNIV, DOMES 15501M001) 属于欧洲参考框架定义的 A 类，是乌克兰境内此类 GNSS 站的一个例子。在本文中，分析了基于长连续坐标时间序列和GNSS台站切尔尼戈夫日志文件的坐标时间序列。对各设备运行过程中的台站坐标进行比较，得出台站稳定性的结论。发现该台站运行稳定，自投产以来没有出现长时间的观测中断。车站发生的最显着变化与设备的变化有关。车站设备一共换了3次：2005年安装了Trimble设备，2011年更换了NovAtel设备，2013年安装了Leica设备，目前仍在运行。对该永久站的时间序列分析表明，在安装徕卡设备时，所有设备同时坐标变化的研究存在一定的跳跃，这与设备的变化有关，即安装系统的不同杆子上的天线。然而，在单独研究每个设备的坐标残差时，观察到冬季和夏季的数值波动，这可能与 GNSS 天线的结构变形有关。