Abstract
According to the advantages of chaotic analog sequences and chaotic binary sequences, this paper presents a method of generating chaotic binary spread-spectrum sequences by multilevel quantifying. This paper proves that the even correlation and odd correlation between such sequences of length N are Gauss distributed, with mean 0 and variance N. The performance of CDMA communication systems is closely related to the mean-square cross-correlation value between sequences, so this paper also presents the distribution of the mean-square cross-correlation value between the sequences. The sequences have good correlation properties and a large amount of such sequences can be generated. The results of simulation verify the correctness of the theoretical analysis.
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