Özet:
In recent years, chaotic systems have begun to take a substantial place in literature due to
increasing importance of secure communication. Chaotic synchronization which has
emerged as a necessity forsecure communication can now be performed with many different
methods. This study purposes the Master-Slave synchronization via active controller and
real time simulation of five different chaotic systems such as Lorenz, Sprott, Rucklidge,
Moore-Spiegel, Rössler. Master slave synchronization was performed because of
synchronization realized between the same type of chaotic systems with different initial
parameters and also because of the systems were expected to behave similarly as a result of
synchronization. Active control method was used to amplify the difference signal between
master and slave systems which have different initial parameters and to return back
synchronization information to the slave system. The real time simulation and
synchronization of the master and slave systems performed successfully in LabVIEW
environment. Furthermore, for the real time implementation, analogue outputs of NI-DAQ
card used and real time results also were observed on an oscilloscope and secure
communication application using sinusoidal signal and an image encryption application
achieved successfully.