@InProceedings{OliveiraJrSouz:2011:UsPLTe,
               author = "Oliveira Junior, Eloy Martins de and Souza, Marcelo Lopes de 
                         Oliveira e",
          affiliation = "{} and {Instituto Nacional de Pesquisas Espaciais (INPE)}",
                title = "The use of PLL techniques for accurate time or phase 
                         synchronization in aerospace and automotive systems",
            booktitle = "Proceedings...",
                 year = "2011",
         organization = "SAE Brazil Congress - Aerospace, 2011.",
             abstract = "Current systems such as satellites, aircrafts, automobiles, 
                         turbines, wind power generators and traffic controls are becoming 
                         increasingly complex and/or highly integrated as prescribed by the 
                         SAE-ARP-4754 Standard. Such systems frequently require accurate 
                         generation, distribution and time or phase synchronization of 
                         signals with different frequencies that may be based on one 
                         reference signal and frequency. But the environment fluctuations 
                         or the non-linear dynamics of these operations cause uncertainties 
                         (skew and jitter) in the phase or time of the reference signal and 
                         its derived signals. So, techniques to reduce those causes or 
                         their effects are becoming important aspects to consider in the 
                         design of such systems. The PLL techniques are useful for 
                         establishing coherent phase or time references, jitter reduction, 
                         skew suppression, frequency synthesis, and clock recovery in 
                         numerous systems such as communication, wireless systems, digital 
                         circuits, rotors, and others. This paper shows the use of PLL 
                         (Phase-Locked Loop) techniques for accurate time or phase 
                         synchronization in aerospace and automotive systems. This is 
                         exemplified by simulating one PLL technique to reduce the skew and 
                         jitter and to synchronize: 1) time or 2) phase of a control system 
                         composed of: 1) two computation and communication lines; or 2) two 
                         classical rigid rotors. The preliminary results suggest that the 
                         PLL technique used: A) is very efficient to accurately 
                         synchronize: 1) the two computation and communication lines; or 2) 
                         two classical rigid rotors in 1) time or 2) phase; B) reduces or 
                         even eliminates the unwanted effects of instability and 
                         uncertainties; and C) can be used in aerospace or automotive 
                         systems.",
  conference-location = "S{\~a}o Paulo",
      conference-year = "4-6 Oct. 2011",
                  doi = "10.4271/2011-36-0179",
                  url = "http://dx.doi.org/10.4271/2011-36-0179",
             language = "en",
           targetfile = "SAEBrasil2011PaperEloyMartinsv3.pdf",
                  url = "http://papers.sae.org/2011-36-0179",
               volume = "SAE Technical Paper 2011-36-0179",
        urlaccessdate = "12 maio 2024"
}