Method and Apparatus for Signal Generation and Detection Using Unstable Periodic Chaotic Orbits
Abstract
A signal generator and signal receiver, as well as methods of signal generation and transmission, in which selected unstable periodic orbits of a lossy chaotic system are identified and extracted, and portions of the orbits concatenated together to form a resultant signal. The selected orbits are known to the signal detector a priori, which uses this knowledge to detect the signal, e.g. by correlation of the signal with the known extracted orbits. By detecting this signal, the detector can also identify information which the generator imposed onto the signal, e.g. which attractor the chaotic system was in, or inversion/non-inversion of the signal, and thus function as a communication system. Such a system is inherently spread spectrum, and inherently has a higher signal to noise ratio than other communication systems based on chaotic signals.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 06, 1999
- Accession Number
- ADD019734
Entities
People
- Thomas L. Carroll
Organizations
- United States Department of the Navy