Projective synchronization in a unified chaotic system and its control
统一混沌系统的投影同步与控制

Projective synchronization phenomenon in unidirectionally coupled unified systems is studied. A scheme is proposed to control the scaling factor formed in the projective synchronization. Under the control strategy, one can arbitrarily manipulate the scaling factor to a desired value. This special phenomenon and the control scheme can be used in some secure communication schemes. Illustrations are also given to show the rightness of the theoretical analysis and the effectiveness of the method proposed.