Generalized projective synchronization of the fractional-order hyperchaotic Lorenz systems via a vector transmitted signal

In this paper, based on the idea of nonlinear observer, a drive-response synchronization method with linear output error feedback is presented for generalized projective synchronization (GPS) of a class of fractional-order hyperchaotic systems via a vector transmitted signal. Through this, the approach arbitrarily scales a drive system attractor and hence a similar chaotic attractor of any desired scale can be realized with the help of a synchronizing scaling factor. Finally, numerical simulations are provided to show the effectiveness of proposed control design.