Discrete Wheel-Switching Chaotic System and Applications

This paper introduces a discrete wheel-switching chaotic system (DWSCS). Changing the controlling sequence of the wheel switch allows DWSCS to generate a large number of new chaotic sequences from a set of existing chaotic maps (seed maps). Simulations and analysis demonstrate the DWSCS´s characteristics and chaotic behaviors. An FPGA design of DWSCS shows its effectiveness in hardware implementation. We also propose a pseudo-random number generator using DWSCS whose excellent performance has been shown in experiments and comparisons.