Processing Evaluation of SIRGAS-CON Network by IBGE Analysis Center
Processing Evaluation of SIRGAS-CON Network by IBGE Analysis Center
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IBGE 分析中心对 SIRGAS-CON 网络的处理评估
DOI：
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发表时间：
2012
期刊：
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通讯作者：
J. Vaz
中科院分区：
文献类型：
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作者：
S. M. A. Costa;A. L. Silva;J. Vaz
IBGE-巴西地理和统计研究所在获得作为试点处理中心的两年经验后，成为SIRGAS-CON(美洲地心参考系)的分析中心，这是一个永久性的全球导航卫星系统网络。最初，大约处理了30个站点。随着美洲大陆上GNSS站的数量不断增加，现在每周大约有100个站在处理中。自1995年第1 495周以来，IBGE正式与另外三个分析中心分担SIRGAS-CON网络的处理任务：奥古斯丁·科达齐-IGAC地质研究所(哥伦比亚)、Cuyo国立大学大地测量和地质研究所、IGG-CIMA(阿根廷)和德国地质科学研究所(德国)。每个中心负责一组站点的处理。这项工作的目的是为IGS区域网络联合分析中心SIRGAS(IGS RNAAC SIR)解决方案做出贡献，建立一个更密集的网络。我们介绍了IBGE作为SIRGAS官方加工中心的现状和努力。2009年，巴西全球导航卫星系统常设网络--RBMC-Rede Brasileira de Monitor oramento Continuo dos Sistemas全球导航卫星系统的新站点将会增加。介绍了使用Bernese全球导航卫星系统软件所采用的处理战略，以及开展活动的相关信息。对结果进行评估，并与其他机构(DGFI、IGG-CIMA和IGS)提供的解决方案进行比较，并分析差异。坐标时间序列显示了与维护国家永久全球定位系统网络有关的一些重要问题。
IBGE – The Brazilian Institute of Geography and Statistics became an Analysis Center for the SIRGAS-CON (Geocentric Reference System for the Americas), permanent GNSS network after getting experience as a Pilot Processing Center for 2 years. In the beginning, about 30 stations were processed. With the growing number of GNSS stations on the American continent, there are now about 100 stations being processed every week. Since week 1,495, IBGE officially shares the processing task of SIRGAS-CON network with three more Analysis Centers: Instituto Geografico Agustin Codazzi – IGAC (Colombia), Instituto de Geodesia y Geodinâmica de la Universidad Nacional del Cuyo, IGG-CIMA (Argentina) and Deutsches Geodatisches Forschungsinstitut-DGFI (Germany). Each center is responsible for the processing of a group of stations. The purpose of this effort is to contribute to the IGS Regional Network Associate Analysis Center for SIRGAS (IGS RNAAC SIR) solution, with a densified network. We present the current status and efforts of IBGE as an official Processing Center for SIRGAS. The perspective is to increase the number of stations in 2009, with the inclusion of new stations from the Brazilian GNSS Permanent Network, RBMC – Rede Brasileira de Monitoramento Continuo dos Sistemas GNSS. The processing strategy applied using the Bernese GNSS Software is presented, as well as relevant information for the development of activities. Results are evaluated and compared to the solutions provided by other institutions (DGFI, IGG-CIMA and IGS) and discrepancies are analyzed. Some important issues related to the maintenance of the national permanent GPS networks are shown in the coordinate time series.