Local entropies as a measure of ordering in discrete maps

被引:6
作者
Buchner, T [1 ]
Zebrowski, J [1 ]
机构
[1] Warsaw Univ Technol, Inst Phys, PL-00662 Warsaw, Poland
关键词
D O I
10.1016/S0960-0779(97)00045-3
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Local order measures are applied to a simple dynamical system: the logistic map. The results on pattern entropy are compared with those obtained using other, well-known order measures such as Renyi entropy, Shannon entropy and Lyapunov exponent (an analytical expression). Two modes of calculation are used: the global one and the local one (i.e. calculated in a sliding time window). The properties of local measures are discussed. It is concluded that the local measures defined here may be a natural tool for analysing non-stationary signals. (C) 1998 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:19 / 28
页数:10
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