%0 Journal Article
%T A Hyperchaotic Attractor with Multiple Positive Lyapunov Exponents<br>
%A HU Guo-Si
%A <br>
%J 中国物理快报
%D 2009
%I 
%X There are many hyperchaotic systems, but few systems can generate hyperchaotic attractors with more than three PLEs (positive Lyapunov exponents). A new hyperchaotic system, constructed by adding an approximate time-delay state feedback to a five-dimensional hyperchaotic system, is presented. With the increasing number of phase-shift units used in this system, the number of PLEs also steadily increases. Hyperchaotic attractors with 25 PLEs can be generated by this system with 32 phase-shift units. The sum of the PLEs will reach the maximum value when 23 phase-shift units are used. A simple electronic circuit, consisting of 16 operational amplifiers and two analogy multipliers, is presented for confirming hyperchaos of order 5, i.e., with 5 PLEs.
%K 05
%K 45
%K -a
%K 05
%K 45
%K Jn
%K 05
%K 45
%K Pq<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=E27DA92E19FE279A273627875A70D74D&aid=BA43A7FB5637FB04729B77435D3115AD&yid=DE12191FBD62783C&vid=96C778EE049EE47D&iid=59906B3B2830C2C5&journal_id=0256-307X&journal_name=中国物理快报&referenced_num=0&reference_num=0