Dynamic separation of chaotic signals in the presence of noise.
The problem of separation of a noise-contaminated observed sum of chaotic signals into the individual components is considered. A noise threshold is found above which high-quality separation is impossible. Below the threshold, each signal is recovered with any prescribed accuracy with a separation method. The threshold effect is shown to be associated with the information content of chaotic signals and a theoretical estimate is given for the threshold.
Andreyev
Yuri V
YV
Institute of Radio Engineering and Electronics, Russian Academy of Sciences, Mokhovaya Street 11, GSP-3, Moscow 103907, Russia. chaos@mail.cplire.ru
Dmitriev
Alexander S
AS
Efremova
Elena V
EV
D008954:Models, Biological; D008962:Models, Theoretical; D017711:Nonlinear Dynamics; D009991:Oscillometry / Q000379:methods; D015398:Signal Transduction / Q000502:physiology*