期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

基于IIR滤波器的最佳混沌扩频序列设计

Design of optimal chaotic spread spectrum sequences using IIR filter
下载PDF
导出
摘要 在标准高斯近似条件下,以最小化系统平均多址干扰方差为准则,推导出了A-CDMA系统最佳扩频序列的部分自相关函数形式;并提出了通用的最佳混沌扩频序列设计方法,即利用数字IIR滤波器滤波混沌序列产生最佳混沌扩频序列。仿真结果表明,这种方法产生的序列性能明显优于纯随机序列和Gold序列。 With respect to the minimization of the overall average variance of interference noise under the standard Gaussian approximation condition, the optimal partial auto-correlation function of the spreading sequences for A-CDMA systems is derived. A general methodology for the design of optimal chaotic spreading sequences by using chaotic sequences filtered by digital IIR filter is provided. According to the simulation, it is show that the performance of spreading sequences generated by this methodology is superior to those of purely random sequences and Gold sequences.
作者 曹明伟 王玫
机构地区 桂林电子工业学院通信与信息工程系
出处 《电路与系统学报》 CSCD 北大核心 2005年第3期64-67,57,共5页 Journal of Circuits and Systems
基金 广西青年科学基金资助项目(桂科青9912011 0229031)
关键词 最佳混沌扩频序列 Lebesgue谱 IIR滤波器 optimal chaotic spreading sequences Lebesgue spectrum IIR filter
分类号 TN914 [电子电信—通信与信息系统]
  • 相关文献

参考文献12

  • 1Umeno K, K I Kitayama. Improvement of SNR with chaotic spreading sequences for CDMA[A]. Information Theory and Communications Workshop, Proceedings of the 1999 IEEE[C]. 1999-06, 20-25: 106.
  • 2Kohda T, Tsuneda A. Pseudonoise sequences by chaotic nonlinear maps and their correlation properties[J]. IEICE Trans. Commun., 1993, E76-B(8): 855-862.
  • 3Kodha T, Tsuneda A. Statistics of chaotic binary sequences[J]. IEEE Trans. Inform. Theory, 1997-01, 43(1): 104-112.
  • 4Kohda T, Fujisaki H, Ideue S. On distributions of correlation values of spreading sequences based on markov information sources[A]. The 2000 IEEE International Symposium on Circuits and Systems, 2000. Proceedings[C]. ISCAS 2000 Geneva. 2000-05, 28-31: 225-228.
  • 5Ling Cong, Li Shaoqian. Chaotic spreading sequences with multiple access performance better than random sequences[J]. IEEE Trans. Circuits Syst. I., 2000-03, 47(3): 394-397.
  • 6Mazzini G, Rovatti R, Setti G. Interference minimization by autocorrelation shaping in asynchronous DS-CDMA systems: chaos-based spreading is nearly optimal[J]. Electronics Letters, 1999, 35(13): 1054-1055.
  • 7Rovatti R, Mazzini G. Interference in DS-CDMA systems with exponentially vanishing autocorrelations: chaos-based spreading is optimal[J]. Electronics Letters, 1998, 34(20): 1911-1913.
  • 8Chen Chi-Chung, Yao Kung, Umeno K, et al. Design of spread-spectrum sequences using chaotic dynamical systems and ergodic theory[J]. IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications, 2001-09, 48(9): 1110-1114.
  • 9Gianluca Mazzini, Gianluca Setti, et al. Chaotic Complex Spreading Sequences for Asynchronous DS-CDMA-Part I: System Modeling and Results[J]. IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications, 1997-10, 44(10): 937-947.
  • 10Pursley M B. Performance Evaluation for Phase-Coded Spread-Spectrum Multiple-Access Communication--Part I: System Analysis[J]. IEEE Transactions on Communications, 1977, 25(8): 795-799.
电路与系统学报
2005年 第3期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部