Synchronized pseudorandom systems and their application to speech communication.
An approach to the synchronization of pseudorandom systems is proposed and applied to secure speech communication. The encoding signal produced by the pseudorandom synchronization scheme passes the random test, and shows much more complex dynamics, better random properties, and greater sensitivity to parameter mismatches than that produced by the active-passive decomposition scheme. Also, two coupled pseudorandom systems can be exactly synchronized despite their different initial states or seeds. Pseudorandom encoding and synchronization may yield great security in communication.
Zhang
Yu
Y
Department of Surgery, Division of Otolaryngology Head and Neck Surgery, University of Wisconsin Medical School, Madison, Wisconsin 53792-7375, USA. zhang@surgery.wisc.edu
Tao
Chao
C
Du
Gonghuan
G
Jiang
Jack J
JJ
D055592:Biophysical Phenomena; D001703:Biophysics; D003142:Communication; D003195:Computer Communication Networks; D003201:Computers; D006801:Humans; D019451:Information Management; D007802:Language; D016571:Neural Networks, Computer; D012984:Software; D013060:Speech; D013597:Systems Analysis; D013598:Systems Theory; D013997:Time Factors