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OPUS and CSRS Web-Based GNSS Services Accuracies For Data From USA and TURKEY

机译：Opus和CSR基于Web的GNSS服务来自美国和土耳其的数据的准确性

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Global Positioning System (GPS), which has entered every aspect of human life since its first appearance, has become widespread with introducing other systems (GLONASS, Galileo, BeiDou, QZSS, IRNSS, etc.). Today, all systems' common name, Global Navigation Satellite Systems (GNSS), continue to exist in our lives. While processing the GNSS data, scientific/academic, commercial software, and web-based applications are being used. Web-based services have become widespread very quickly since their introduction. Web-based services have provided ease of use, free of charge, results in a short period of time for users and eliminated the dependence on licensed software. Today, web-based evaluation services increase their activities, variety and number of users day by day. Research on the accuracy of the location obtained from these services continues. This study determined 42 stations in the United States of America and 18 stations in Turkey (with 10 - day good ionospheric conditions and 6 - day worse ionospheric conditions data sets) OPUS, CSRS web services in (depending on the duration of the session: 1 hour to 24 hours) evaluations were carried out. CSRS web service can evaluate GPS, GLONASS, Galileo data, but OPUS uses only GPS data. As can be seen from both the 1-hour results, it is thought that including GPS + GLONASS data in the evaluation has a positive effect. From the results we obtained, it was determined that 12 hours of observation should be made to good positioning accuracy under one cm using any of these applications. It has been determined that using the web-based GNSS evaluation services, good accurate positioning can be obtained from the data collected with a single receiver. But due to the publication time of precise ephemeris, as soon as the measurement is made, it is not possible to reach the mentioned accuracies. There are similar standards in the global world today and it can be said that a minimum of 2 hours of observation should be made for engineering applications. It has been determined that the web services used can reach the "high precision standard (horizontal 2 - 3 mm, vertical 3 - 5 mm) "defined by IGS with a minimum of 12 hours horizontally and 24 hours in vertical.
机译：全球定位系统（GPS）已进入人类生活的各个方面以来自首次出现以来，已普及引入其他系统（Glonass，Galileo，Beidou，QZS，Irnss等）。今天，所有系统的共同名称，全球导航卫星系统（GNSS），继续存在于我们的生活中。在处理GNSS数据时，正在使用科学/学术，商业软件和基于Web的应用程序。自他们的介绍以来，基于网络的服务非常迅速普遍存在。基于Web的服务提供了易用的使用，免费，在短时间内导致用户，并消除了对许可软件的依赖。如今，基于网络的评估服务日复一日地增加了他们的活动，品种和用户数。继续从这些服务中获得的准确性的研究继续。本研究确定了美国的42站和土耳其的18站（10天良好的电离层和6天更糟糕的电离层条件数据集），CSRS Web服务（取决于会话持续时间：1小小到24小时）进行评估。 CSRS Web服务可以评估GPS，Glonass，Galileo数据，但Opus仅使用GPS数据。从1小时的结果可以看出，据认为，评估中包括GPS + GLONASS数据具有积极效果。根据我们获得的结果，确定使用任何这些应用中的任何一个厘米，应确定12小时的观察。已经确定，使用基于Web的GNSS评估服务，可以从用单个接收器收集的数据获得良好的准确定位。但由于精确星历的出版时间，一旦进行测量，就不可能达到提到的准确性。今天全球世界上存在类似的标准，可以说应至少为工程应用进行2小时的观察。已经确定，使用的Web服务可以通过IGS达到“高精度标准（水平2 - 3mm，垂直的3 - 5 mm）”，该IGS定义为至少12小时水平，垂直24小时。

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