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The number of traditional m sequence with and Gold sequence which can be used as spreading codes is limited.In order to solve this problem,using chaotic sequence instead of m sequence and Gold sequence was proposed.However,the chaotic sequence of single low-dimensional chaotic mapping has some shortcomings in terms of anti attack ability,key space and security.According to the optimization results,this paper presented a new mixed chaotic sequence by the combination of the single low-dimensional Logistic sequences and Chebyshev sequences.Results of performance analysis and simulation indicate that the new chaotic sequence does wel in balance,random and correlation,and the antijamming ability of mixed chaotic sequences,m sequence and Gold sequence is similar.

基于优选准则的混合混沌序列的生成 (Generation of Mixed Chaotic Sequences Based on Optimization Criterion).