Real-time high-speed 5-D hyperchaotic Lorenz system on FPGA
by İsmail Koyuncu; Murat Alçin; Murat Tuna; İhsan Pehlivan; Metin Varan; Sundarapandian Vaidyanathan
International Journal of Computer Applications in Technology (IJCAT), Vol. 61, No. 3, 2019

Abstract: Chaotic systems have several engineering applications such as cryptology, random number generators, image processing and secure communication. A basic structure used in these studies is a chaotic oscillator design that produces a chaotic signal. In this paper, 5-D hyperchaotic Lorenz system (Hu, 2009) has been implemented on FPGA using Heun algorithm to improve the chaos-based embedded engineering applications. The 32-bit IEEE-754-1985 floating point format has been used in the Heun-based design. The design has been coded in VHDL. The maximum operating frequency of FPGA-based 5-D hyperchaotic Lorenz system reaches 430.146 MHz. In addition, a real circuit realisation of 5-D hyperchaotic Lorenz system has been performed using analogue circuit elements. The results of FPGA-based new 5-D hyperchaotic Lorenz system have been compared with the results of computer-based numerical simulation and then the error analyses (MSE and RMSE) have been carried out.

Online publication date: Tue, 08-Oct-2019

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