@TechReport{Sirothia::FiCoBa,
               author = "Sirothia, Sandeep",
                title = "Finaliza{\c{c}}{\~a}o do correlacionador baseado em FPGA e 
                         avan{\c{c}}o na obten{\c{c}}{\~a}o de imagens solares 
                         bidimensionais com o BDA-II",
          institution = "Instituto Nacional de Pesquisas Espaciais",
                 type = "RPQ",
              address = "S{\~a}o Jos{\'e} dos Campos",
             keywords = "interferometria, imagens solares, correlacionador, BDA.",
             abstract = "Na segunda fase do Arranjo Decim{\'e}trico Brasileiro BDA 
                         (BDA-II), 26 antenas foram instaladas e depuradas para produzir 
                         imagens bidimensionais do Sol em alta resolu{\c{c}}{\~a}o (100 
                         ms) e s{\'{\i}}nteses completas de observa{\c{c}}{\~o}es de 
                         campos Gal{\'a}ticos e Extragal{\'a}ticos. O intervalo de 
                         frequ{\^e}ncia de 1.2-1.7 GHz est{\'a} operacional no BDA II. 
                         Usando 14 antenas do sistema BDA-II, fomos capazes de fazer 
                         observa{\c{c}}{\~o}es do Sol, nebulosa Crab e do pulsar Vela. 
                         Neste relat{\'o}rio apresentamos as imagens 2D iniciais do Sol e 
                         nebulosa Crab usando informa{\c{c}}{\~a}o somente de fase das 
                         visibilidades do BDA a 1,405 GHz. A resolu{\c{c}}{\~a}o espacial 
                         obtida na imagem Crab foi de 278,981 por 145,556 (arcsec) a pa 
                         10,8244 (deg) o que est{\'a} de acordo com as linhas de base das 
                         antenas do BDA-II utilizadas. Tamb{\'e}m apresentamos a 
                         detec{\c{c}}{\~a}o inicial do sinal do pulsar Vela usando o 
                         BDA-II. Atualmente continuamos os esfor{\c{c}}os de 
                         depura{\c{c}}{\~a}o para solucionar os problemas de 
                         sensitividade e o uso simult{\^a}neo de amplitude e fase das 
                         observa{\c{c}}{\~o}es do BDA. ABSTRACT: In the second phase of 
                         the Brazilian Decimetric Array, BDA (BDA-II), 26 antennas were 
                         installed and debugged to perform high time resolution (100ms) two 
                         dimensional imaging of the Sun and full synthesis observations of 
                         the Extragalactic, Galactic fields. The frequency range 1.2-1.7 
                         GHz is operational in BDA II. Using the 14 antennas of BDA-II 
                         system we were able to make observation of Sun, Crab nebulae and 
                         the Vela pulsar. In this report we present the initial 2D images 
                         of Sun and Crab nebulae using the phase only information from the 
                         BDA visibilities at 1.405 GHz. The spatial resolution obtained in 
                         the Crab image was 278.981 by 145.556 (arcsec) at pa 10.8244 (deg) 
                         which is in accordance with the BDA-II baselines of the antennas 
                         used. We also present the initial detection of the Vela pulsar 
                         signal using the BDA-II. Currently we continue our debugging 
                         efforts to resolve the sensitivity issues and simultaneous use of 
                         amplitude and phase information from of BDA-II observations.",
             language = "en",
                  ibi = "8JMKD3MGP3W34P/3KQ2HT2",
                  url = "http://urlib.net/ibi/8JMKD3MGP3W34P/3KQ2HT2",
           targetfile = "cesar.strauss@inpe.br/Relat{\'o}rio_Sandeep_final.pdf",
        urlaccessdate = "06 maio 2024"
}