Open AccessTwo novel methods for generating spatiotemporal chaotic pseudorandom-bit sequences based on one way coupled map lattices
Author(s) -
Fu Zhi-Jian,
Yicheng Zeng,
Xu Mao-Lin
Publication year - 2008
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.57.4014
Subject(s) - pseudorandom number generator , chaotic , pseudorandom binary sequence , coupled map lattice , computer science , algorithm , statistic , pseudorandom generator theorem , lattice (music) , cryptography , chaotic map , theoretical computer science , sequence (biology) , pseudorandom permutation , symbolic dynamics , mathematics , pseudorandomness , physics , binary number , artificial intelligence , arithmetic , block cipher , acoustics , biology , genetics , control (management) , synchronization of chaos , statistics , control theory (sociology) , pure mathematics
Two novel methods for generating spatiotemporal chaotic pseudorandom-bit sequences (PRBS) based on the one way coupled map lattices (OCML) model are proposed. In the first onethe symbolic sequences are generated by a partitionwhich is based on the statistic property of the state of the one way coupled map lattice. And in the otherthe sequences are obtained by comparing the two consecutive state values of a single lattice of the OCML. We compareed the performance of these two types of sequences with the conventional ones. The numerical experiments demonstrated that the sequences have ideal randomicity, excellent correlation and run-length distributionand they are good candidates for information securitycryptography and spread-spectrum communications.