Title :
Spread-spectrum sequences from unstable periodic orbits
Author :
Carroll, Thomas L.
Author_Institution :
Mater. Phys. Branch, US Naval Res. Lab., Washington, DC, USA
fDate :
4/1/2000 12:00:00 AM
Abstract :
I find that it is possible to use the unstable periodic orbits (UPO´s) from a chaotic system to approximate a chaotic signal from that system. The UPO´s are used to create possible sequences of motion for the chaotic system, and these possible sequences are then compared to a noise-contaminated chaotic signal to determine which possible sequence is the best estimate for the noise-free signal. The comparison process has some similarity to CDMA
Keywords :
chaos; sequences; spread spectrum communication; chaotic system; spread spectrum sequence; unstable periodic orbit; Bandwidth; Chaotic communication; Cryptography; Equations; Motion estimation; Multiaccess communication; Orbital calculations; Orbits; Pattern recognition; Spread spectrum communication;
Journal_Title :
Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on
