FPAA IMPLEMENTATION OF CHAOTIC MODULATION BASED ON NAHRAIN MAP

Abstract

Due to characteristic of chaotic systems in terms of nonlinearity, sensitivity to initial values, andnon-periodicity, they are used in many applications like security and multiuser transmission. Nahrain chaotic mapis an example of such systems that are recently proposed with excellent features for the use in multimedia securityapplications. Although the implementation of chaotic systems is easy using low cost analogue ICs, this approachdoes not provide the flexibility that the reconfigurable analogue devices have in design possibilities such as reducingthe complexity of design, real-time modification, software control and adjustment within the system. This paperpresents a description of data modulation and demodulation based on Nahrain chaotic system and there hardwareimplementation using field programmable analogue array (FPAA) device. AN231E04 dynamical programmableAnalog Signal Processor (dpASP) board is used as a target device for the implementation. The simulation resultsof system closely matched the programmable hardware testing results.