Many researches have been done to create pseudo-random binary sequence which can be a substitute of conventional sequence. The sequences based on chaotic system get the traits of white noise can be the PN code of CDMA system. 基于混沌的伪随机序列具有类似白噪声的统计特性,完全可以取代传统序列作为CDMA通信系统的PN码,已有大量文章证实其可行性。