CHAOS BASED COMMUNICATION SYSTEM USING CORRELATION MULTI DELAY SHIFT KEYING

摘要

The invention discloses a method of operating data-processing system for a chaos based communications using correlation multi delay shift keying. Said method' comprising steps of: keying, demodulation and detection. The core of the invention is keying performed by using the signal samples ϰ i produced by the chaotic generator that is fed to N delay circuits having delay times n ⋅ L, N being power of two and L is the delay constants of the said modulator; producing a modulated signal sequence of. length M with signal samples denoted as s i (k) = (ϰ i — ϰ i — kL ) for the k-th symbol. Said signal s i (k) is transmitted via real communication channel that adds noise to the signal. The receiver processed received signal via series of delay circuits identical to those used in modulator and corresponding correlators. Finally, the detector extracts the minimal correlator's value, which identifies symbol sent over a communication channel.