摘要
对混沌序列有限精度下限进行了研究,结果表明,经典混沌序列所需精度非常高,而现有几种对Logistic混沌序列进行改进的方法使其所需精度明显下降.对这些方法进行了分析比较和改进,改进后计算量明显降低,硬件实现更加容易.
This paper studies the precision threshold of chaotic sequences. The results of simulation showed that the precision of classical chaotic sequences is very high. At present several modified methods of Logistic chaotic sequence decrease the need for precision obviously. These methods are analyzed and compared and the shrinking method with the best performance is improved, which can decrease calculation volmne obviously. Furthermore, it is easier to realize in hardware than conventional chaotic sequences.
出处
《哈尔滨商业大学学报（自然科学版）》
CAS
2006年第1期42-45,共4页
Journal of Harbin University of Commerce：Natural Sciences Edition
关键词
混沌扩频序列
有限精度效应
精度下限
相关函数
chaotic spread spectrum sequences
finite precision
threshold of precision
related lunction
