Title :
Signal coding and compression based on chaos control techniques
Author :
Dedieu, Hervé ; Ogorzalek, Maciej
Author_Institution :
Dept. of Electr. Eng., Swiss Federal Inst. of Technol., Lausanne, Switzerland
fDate :
30 Apr-3 May 1995
Abstract :
This paper presents a new technique for signal coding and compression based on chaos control techniques. Given signal (e.g. speech or any other) recorded in a time interval is cut into smaller samples, further each of the sections is stored as a piece of a chaotic trajectory supplied by a chosen chaos generator (coder!). Effective techniques (based on a chaos control procedure) for finding initial conditions of the chaos generator to produce a desired shape of the output signal with a desired accuracy are described. In effect the signal to be coded/compressed can be stored as a set of points-initial conditions of the chosen chaos generator. Recovery of the original signal is straightforward: the stored initial conditions are applied to the coding chaos generator and the solutions taken in appropriate intervals are simply pieced together. Advantages and drawbacks of the proposed technique are discussed
Keywords :
chaos; data compression; encoding; chaos control; chaos generator; signal coding; signal compression; signal recovery; speech signal; Chaos; Decoding; Electronic mail; Frequency; Motion control; Nonlinear dynamical systems; Oscillators; Shape control; Signal generators; Speech;
Conference_Titel :
Circuits and Systems, 1995. ISCAS '95., 1995 IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-2570-2
DOI :
10.1109/ISCAS.1995.520357