Karim Kemih  , Malek Benslama  , Henri Baudrand  , 
    Synchronization of Lü System Based on Passivity Technique in Satellite CDMA System,
    Journal of Mobile Communication,
    Volume 1,Issue 1,
    2007,
    Pages 25-28,
    ISSN 1990-794x,
    jmcomm.2007.25.28,
    (https://makhillpublications.co/view-article.php?doi=jmcomm.2007.25.28)
    Abstract: This letter addresses the problem of controlled synchronization of Lü system in CDMA satellite system. A general  model is studied using feedback passivity controls. The concept of semipassivity is defined to  find  simple conditions which ensure boundedness of the solutions of coupled Lü systems. Numerical results are presented to show the effectiveness of the proposed chaos synchronization methods.
    Keywords: CDMA;satellite system;sychronization methods