为获得性能良好的扩频序列,基于重构原理,将Bernoulli映射相空间轨迹进行二度重构,提出了一种新的混沌映射.新的混沌映射最大Lyapunov指数由0.697提高至大于5.5,并具有弱结构特性,以此来产生扩频序列.仿真计算分析了混沌序列的复杂度、平衡性以及相关性的改进,仿真结果表明,该方法产生的混沌扩频序列是一类性能良好的混沌扩频序列.
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