基于蔡氏电路的数字混沌序列的性能研究

Study on Digital Chaotic Sequence Based on Chua's Circuit

首先指出了传统的混沌伪随机序列的缺陷,并从理论上进行了分析,进而提出一种采用A/D转换方式对模拟的蔡氏混沌电路进行数字化,相应处理后,生成真正意义上的数字混沌序列的方法。通过对所得到的序列进行理论与随机性能分析可知:提出的混沌序列产生方法简单,序列的随机性能良好,适合应用于数据加密领域,是一类具有很好应用前景的混沌序列产生方法。

The paper first points out the defects of traditional chaotic pseudo-random sequence,then proposes a use of A/D conversion for digitizing Chua＇s chaotic circuit and generating a real digital chaotic sequences.Theory and random performance analysis on the sequence shows that the proposed method,could generate chaotic sequences of good randomness,is suitable for data encryption.Thus it is prospective method for generation of chaotic sequence.