Author: Jorge Martinez_Carballido
A procedure is introduced to speed-up time simulation of Chua’s circuit by means of determining the eigenvalues of its
state matrixes. A multistep method is applied with automatic control of step-size (h), where h is determined by the computation
of the eigenvalues of the state matrixes which change according to the slopes of Chua’s diode. It is shown that
the proposed simulation procedure enhances the estimation of the values of the circuit elements in Chua’s circuit and the
exploration on its frequency scaling behavior. Besides, it is not necessary to give an initial step-size for initializing the
In this paper, an implementation of an educational platform for real-time linear and morphological image filtering using a FPGA NexysII, Xilinx®, Spartan 3E, is described. The system is connected to a USB port of a personal computer, which in that way form a powerful and low-cost design station for educational purposes. The FPGA-based system is accessed through a MATLAB graphical user interface, which handles the communication setup and data transfer. The system allows the students to perform comparisons between results obtained from MATLAB simulations and FPGA-based real-time processing. Concluding remarks derived from course evaluations and lab reports are presented.