Realization of Digital Chaotic Signal Generation Circuits

Abstract:

To overcome the shortcomings of realizing chaotic system by analog circuits, digital chaotic signal generation circuits based on DSP are designed. Computer simulation of chaotic system is performed firstly, and the discrete equations are obtained using discretization algorithm. On this basis, the design of hardware circuits based on DSP is made, and the corresponding C programs are constructed. Through the debugging of software and hardware, digital design of chaotic system based on DSP is achieved, and chaotic attractor is observed through an oscilloscope by digital-to-analog conversion circuit. The experimental results coincide with the simulation, proving the correctness of the design. The chaotic signal generation circuits can provide rich digital chaotic signals sources for the application of chaotic systems in engineering.

• Periodical: Applied Mechanics and Materials (Volumes 716-717)
• Pages: 1352-1355
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.716-717.1352
• Online since: December 2014
• Authors: Hua Qiang Gao*, Yu Jing Wang, Shou Qiang Kang, Zhang Le, Jian Qing Wang, Jing Jing Wei
• Keywords: Chaos, Digital Chaotic Sequence, Digital Signal Processor, Signal Generation Circuit

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