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@MastersThesis{JulioFo:2015:ArGeDi,
               author = "Julio Filho, Antonio Cassiano",
                title = "Uma arquitetura para gerenciamento din{\^a}mico de 
                         servi{\c{c}}os do protocolo Space Link Extension",
               school = "Instituto Nacional de Pesquisas Espaciais (INPE)",
                 year = "2015",
              address = "S{\~a}o Jos{\'e} dos Campos",
                month = "2015-02-12",
             keywords = "protocolo de comunica{\c{c}}{\~a}o em aplica{\c{c}}{\~o}es 
                         espaciais, sistema para controle de sat{\'e}lites, Space Link 
                         Extension (SLE) protocol, CCSDS, Custo Miss{\~a}o Espacial, 
                         communication protocol on space applications, satellites control 
                         system, Space Link Extension (SLE) protocol, CCSDS, Space Mission 
                         Cost.",
             abstract = "Um n{\'u}mero crescente de sat{\'e}lites e miss{\~o}es 
                         espaciais promove a evolu{\c{c}}{\~a}o dos servi{\c{c}}os de 
                         rede que compreendem o uso de componentes terrestres que apoiam a 
                         opera{\c{c}}{\~a}o e o tratamento dos dados espaciais. A rede de 
                         componentes terrestres compreende: esta{\c{c}}{\~o}es terrenas 
                         de rastreio e controle, centro de opera{\c{c}}{\~o}es, centro de 
                         controle de miss{\~a}o, centro de processamento de dados e 
                         usu{\'a}rio final. Estes componentes viabilizam 
                         opera{\c{c}}{\~o}es de apoio cruzado entre ag{\^e}ncias 
                         espaciais e para isso, necessitam de uma arquitetura adequada 
                         capaz de realizar as atividades de acesso ao ve{\'{\i}}culo 
                         espacial e de incrementar a capacidade do rastreio e controle. 
                         Tais atividades est{\~a}o cada vez mais abordadas nas 
                         recomenda{\c{c}}{\~o}es elaboradas pelo \emph{Consultative 
                         Committee for Space Data Systems} (CCSDS) para uso do apoio 
                         cruzado \emph{(Cross Support)}. Essas recomenda{\c{c}}{\~o}es 
                         incluem aspectos para: Servi{\c{c}}os de gerenciamento para 
                         transfer{\^e}ncia de dados solo-solo e servi{\c{c}}os do 
                         protocolo de Extens{\~a}o de Enlace Espacial - \emph{Space Link 
                         Extension} relacionados aos de dados de telemetria e telecomando. 
                         Esta disserta{\c{c}}{\~a}o apresenta uma Arquitetura para 
                         Gerenciamento Din{\^a}mico de Servi{\c{c}}os do Protocolo 
                         \emph{Space Link Extension} que permita: (i) a troca de 
                         par{\^a}metros de configura{\c{c}}{\~a}o; (ii) a 
                         detec{\c{c}}{\~a}o din{\^a}mica de redund{\^a}ncia entre 
                         esta{\c{c}}{\~o}es terrenas; (iii) a transpar{\^e}ncia na 
                         comuta{\c{c}}{\~a}o do controle da opera{\c{c}}{\~a}o entre 
                         esta{\c{c}}{\~o}es, (iv) a transmiss{\~a}o e 
                         recep{\c{c}}{\~a}o de dados de telecomando e telemetria e (v) a 
                         execu{\c{c}}{\~a}o dos servi{\c{c}}os de gerenciamento 
                         associados. A prova de conceito da arquitetura foi obtida com a 
                         implementa{\c{c}}{\~a}o de um prot{\'o}tipo e de simuladores 
                         simplificados. A arquitetura {\'e} baseada no \emph{Internet SLE 
                         Protocol One} e no transporte de mensagens de gerenciamento 
                         utilizando o padr{\~a}o \emph{Extensible Markup Language}. As 
                         contribui{\c{c}}{\~o}es e benef{\'{\i}}cios da 
                         solu{\c{c}}{\~a}o proposta, a an{\'a}lise das dificuldades 
                         encontradas, as limita{\c{c}}{\~o}es da arquitetura proposta e 
                         as considera{\c{c}}{\~o}es para trabalhos futuros s{\~a}o 
                         tamb{\'e}m apresentadas nesta disserta{\c{c}}{\~a}o. ABSTRACT: 
                         An increasing number of satellites and space missions promotes the 
                         evolution of network services which comprise the use of 
                         terrestrial components that support the operation and the 
                         treatment of the space data. The networking of terrestrial 
                         components comprises: telemetry, tracking and command ground 
                         stations, control centers, mission control centers, data 
                         processing centers and end users. These components allow cross 
                         support of operations among space agencies but, require an 
                         appropriate architecture capable to perform activities to 
                         communicate with spacecrafts and an augmented the capability for 
                         tracking and control. Such an activities are increasingly rising 
                         the recommendations produced by the Consultative Committee for 
                         Space Data Systems (CCSDS) for use in cross support. These 
                         recommendations include aspects of: Management services for data 
                         transfer ground-ground and Space Link Extension protocol services 
                         related to telemetry and telecommand data. This dissertation 
                         presents an Architecture for Dynamic Management of the Space Link 
                         Extension Protocol Services, intend to permit: (i) the exchange of 
                         configuration parameters; (ii) the dynamic detection of redundancy 
                         between ground stations, (iii) the transparency of take-over of 
                         operation between stations; (iv) the transmission and the 
                         reception of telecommand and of telemetry data and (v) the 
                         execution of the associated management services. The proof of 
                         concept of the architecture was obtained with the implementation 
                         of a prototype and of simplified simulators. The architecture is 
                         based on Internet SLE Protocol One and on the transport of 
                         management messages using standard Extensible Markup Language. The 
                         contributions and the benefits of the proposed solution, the 
                         analysis of the involved difficulties, the limitations of the 
                         proposed architecture and the considerations for future work are 
                         also presented in the dissertation.",
            committee = "Francisco, Maria de F{\'a}tima Mattiello (presidente) and 
                         Ambrosio, Ana Maria (orientadora) and Ferreira, Mauricio 
                         Gon{\c{c}}alves Vieira (orientador) and Bergamini, Eduardo 
                         Whitaker and Bogossian, Ot{\'a}vio Luiz and Ghizoni, C{\'e}sar 
                         Celeste",
           copyholder = "SID/SCD",
         englishtitle = "An architecture for dynamic management of the Space Link Extension 
                         protocol services",
             language = "pt",
                pages = "213",
                  ibi = "8JMKD3MGP3W34P/3HP2P7P",
                  url = "http://urlib.net/rep/8JMKD3MGP3W34P/3HP2P7P",
           targetfile = "publicacao.pdf",
        urlaccessdate = "04 dez. 2020"
}


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