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IEICE TRANSACTIONS on Fundamentals

Design of a Digital Chaos Circuit with Nonlinear Mapping Function Learning Ability

Kei EGUCHI, Takahiro INOUE, Akio TSUNEDA

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Summary :

In this paper, an FPGA (Field Programmable Gate Array)-implementable digital chaos circuit with nonlinear mapping function learning ablility is proposed. The features of this circuit are user-programmability of the mapping functions by on-chip supervised learning, robustness of chaos signal generation based on digital processing, and high-speed and low-cost thanks to its FPGA implementation. The circuit design and analysis are presented in detail. The learning dynamics of the circuit and the quantitization effect to the quasi-chaos generation are analyzed by numerical simulations. The proposed circuit is designed by using an FPGA CAD tool, Verilog-HDL. This confirmed that the one-dimensional chaos circuit block (except for SRAM's) is implementable on a single FPGA chip and can generate quasi-chaos signals in real time.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E81-A No.6 pp.1223-1230
Publication Date
1998/06/25
Publicized
Online ISSN
DOI
Type of Manuscript
Category
Nonlinear Problems

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