计算机科学 ›› 2016, Vol. 43 ›› Issue (Z11): 268-270.doi: 10.11896/j.issn.1002-137X.2016.11A.062

• 无线网络与通信 • 上一篇    下一篇

基于优选准则的混合混沌序列的生成

董文华,郭淑霞   

  1. 西北工业大学电子信息学院 西安710072,西北工业大学电子信息学院 西安710072
  • 出版日期:2018-12-01 发布日期:2018-12-01
  • 基金资助:
    本文受国家自然科学基金项目(61571368),国防技术基础科研项目(2014607B006)资助

Generation of Mixed Chaotic Sequences Based on Optimization Criterion

DONG Wen-hua and GUO Shu-xia   

  • Online:2018-12-01 Published:2018-12-01

摘要: 针对传统的m序列、Gold序列可用作扩频码的数量有限这一问题,提出了用混沌序列代替传统的m序列、Gold序列的方法。针对单个低维混沌映射产生的混沌序列存在抗攻击能力差、密钥空间小、保密性不理想等缺点,依据优选结果将单个低维的改进型Logistic序列与Chebyshev序列组合产生了一种新的混合序列。仿真结果表明,新的混合混沌序列平衡性高、类随机、相关性好,且该混合混沌序列和m序列、Gold序列的抗AWGN干扰和抗单频干扰的能力相近。

关键词: 优选准则,混合混沌序列,抗干扰,蒙特卡罗

Abstract: 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 well in balance,random and correlation,and the anti-jamming ability of mixed chaotic sequences,m sequence and Gold sequence is similar.

Key words: Sequence optimized selection,Mixed chaotic sequences,Anti-jamming,Monte carlo

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