@InProceedings{FerreiraDoMeMaCeEcVi:2016:DiCoWa,
               author = "Ferreira, Maria Teodora and Domingues, Margarete Oliveira and 
                         Mendes, Odim and Macau, Elbert Einstein Nehrer and Cecatto, 
                         Jos{\'e} Roberto and Echer, Ezequiel and Vieira, Luis Eduardo 
                         Antunes",
          affiliation = "{Universidade do Vale do Para{\'{\i}}ba (UNIVAP)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)} and {Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)}",
                title = "Discrete complex wavelet approach applied to phase synchronization 
                         on solar parameters",
                 year = "2016",
         organization = "International Conference on Nonlinear Science and Complexity, 6.",
             keywords = "Analysis and Control of Nonlinear Dynamical Systems with Practical 
                         Applications, Fluidodynamics, Plasma and Turbulence, 
                         Synchronization in Nonlinear Systems, Phase Synchronization, Solar 
                         Parameters.",
             abstract = "In general for the space science, and in particular for the solar 
                         physics, the development of new nonlinear analysis methods is 
                         always interesting and a promising initiative, because most of the 
                         time dynamical aspects may be unraveled from the physical records. 
                         Much effort has been done to survey the dynamical behavior of the 
                         Sun described by physical parameters connected to complex 
                         non-linear mechanisms responsible for the energy release on the 
                         solar atmosphere. Discrete Complex Wavelet Approach (DCWA) is 
                         based on the phase assignment from complex wavelet coefficients 
                         obtained by using a dual-tree complex wavelet transform. Can DCWA 
                         be validate for phase assignment, and subsequently in the 
                         calculation of phase difference of solar parameters? For 
                         validation tests, two time series of important solar parameters 
                         are chosen: (1) the daily sunspot number, and (2) the daily total 
                         radio flux at 10.7cm, from 1999 till 2002, which corresponds to 
                         the maximum phase of the previous solar cycle. Initially, the DCWA 
                         allows us to find the frequencies that are present in those 
                         signals. The implemented method allows us to identify the 
                         preservation of synchronism along the time and the intervals 
                         related to phase-slips among them. The result indicates that both 
                         series are under synchronization almost all the time. This result 
                         is consistent with what we expect according with the physics of 
                         that problem. Indeed, the recorded daily sunspot number (of 
                         sunspots) is well related with the daily measured radio flux at 
                         10.7 cm. The result found confirms what is well known from the 
                         literature that both parameters can be used as proxies for the 
                         solar activity. Also, this DCWA method is validated as a tool to 
                         analyze in a complete way the synchronization of a wider set of 
                         solar parameters.",
  conference-location = "S{\~a}o Jos{\'e} dos Campos, SP",
      conference-year = "16-20 May",
             language = "en",
        urlaccessdate = "27 abr. 2024"
}