Experimental study of a chaos‐based communication system in the presence of unknown transmission delay

Abstract

SUMMARYIn this paper, a chaos-based communication system in the presence of unknown transmission delay is studied. First, under master/slave configurations, two chaotic Chen systems as the slaves are synchronized with a master one via unidirectional coupling. Then at the transmitter, information of an image is embedded within a slave-one signal and the resultant signal along with another one which is used to determine the transmission delay is transmitted to the receiver. At the receiver, using the received signals and the slavetwo counterpart signal, the image is recovered. The performance of the proposed method is experimentally illustrated.

Spiral periodic structure inside chaotic region in parameter‐space of a Chua circuit

“…Further, we find two connected sequences aligned in specific directions in parameter-space, organized in period-adding cascades. Finally, we point out that the results reported in this letter may be useful to the experimentalists who work with applications of chaotic circuits, and that depend on the existence of wide regions of chaos, such as secure communication [7,[15][16][17][18][19].…”

Structural characterization of classical and memristive circuits with purely imaginary eigenvalues

“…We ignore other parasitic effects which are not relevant to our analysis. Replacing in Figure 5 both junctions by the parallel connection of a nonlinear inductor and a memristor governed by (31) and (32), respectively, we get the circuit depicted in Figure 6. Figure 6: Equivalent circuit.…”

“…Qualitative results are related e.g. to stability properties of equilibria and operating points [6,16,21,27,56], oscillations [12,24,36,40], bifurcations [18,38,51] or chaotic phenomena [3,4,31,32,37,46,59,61]. These references are just a sample of the huge literature addressing qualitative aspects in electrical and electronic engineering (cf.…”

Purely Imaginary Eigenvalues (PIE) in Extended Circuits with Mem-Devices

“…Qualitative results are related e.g. to stability properties of equilibria and operating points [3,4,5,6,7], oscillations [8,9,10,11], bifurcations [12,13,14] or chaotic phenomena [3,15,16,17,18,19,20,21,22]. These references are just a sample of the huge literature addressing qualitative aspects in electrical and electronic engineering (cf.…”