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Evaluation of Tropospheric and Ionospheric Effects on the Geographic Localization of Data Collection Platforms

机译：对流层和电离层对数据收集平台地理定位的影响的评估

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The Brazilian National Institute for Space Research (INPE) is operating the Brazilian Environmental Data Collection System that currently amounts to a user community of around 100 organizations and more than 700 data collection platforms installed in Brazil. This system uses the SCD-1, SCD-2, and CBERS-2 low Earth orbit satellites to accomplish the data collection services. The main system applications are hydrology, meteorology, oceanography, water quality, and others. One of the functionalities offered by this system is the geographic localization of the data collection platforms by using Doppler shifts and a batch estimator based on least-squares technique. There is a growing demand to improve the quality of the geographical location of data collection platforms for animal tracking. This work presents an evaluation of the ionospheric and tropospheric effects on the Brazilian Environmental Data Collection System transmitter geographic location. Some models of the ionosphere and troposphere are presented to simulate their impacts and to evaluate performance of the platform location algorithm. The results of the Doppler shift measurements, using the SCD-2 satellite and the data collection platform (DCP) located in Cuiaba town, are presented and discussed.
机译：巴西国家空间科学研究所（INPE）正在运行巴西环境数据收集系统，该系统目前由大约100个组织和700多个安装在巴西的数据收集平台的用户组成。该系统使用SCD-1，SCD-2和CBERS-2低地球轨道卫星来完成数据收集服务。主要系统应用程序是水文学，气象学，海洋学，水质等。该系统提供的功能之一是通过使用多普勒频移和基于最小二乘技术的批估计器对数据收集平台进行地理定位。越来越需要改善用于动物跟踪的数据收集平台的地理位置质量。这项工作提出了电离层和对流层对巴西环境数据收集系统发射机地理位置的影响的评估。介绍了电离层和对流层的一些模型，以模拟它们的影响并评估平台定位算法的性能。介绍并讨论了使用SCD-2卫星和位于库亚巴镇的数据收集平台（DCP）进行的多普勒频移测量的结果。

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