摘要
本文研究了不同精度对Chebyshev映射混沌扩频序列相关特性的影响。首次提出了有限精度门限值的概念 ,给出了有限精度门限值与序列长度的数学关系式 ;研究和分析了精度低于有限精度门限值时混沌迭代初值的选取对序列相关特性的影响 ,并给出了初值选取的准则。本文的研究结果为混沌映射扩频序列的应用研究提供了参考依据。
This paper investigates the effect of different precision on the correlation properties of Chebyshev Map chaotic spread spectrum sequences.For the first time,it defines the term of finite precision threshold and gives the mathemmatical description of the relationship between the finite precision thresholds of the Chebyshev Map chaotic spread spectrum sequences and their lengths.It analyzes the effect of the selection of iteration seeds on the correlation properties of the sequences when the calculation precision is lower than the finite precision threshold and proposes the criterion of seed selection.The study results of the paper provide the basis for the application study of chaotic spread spectrum sequences
出处
《信息工程大学学报》
2000年第3期19-22,共4页
Journal of Information Engineering University
关键词
CHEBYSHEV映射
混沌扩频序列
奇偶相关特性
有限精度
混沌轨迹
Chebyshev Map
chaotic spread spectrum sequences
odd/even correlation properties
finite precision
chaotic trajectory.
作者简介
蔡国权(1964-),男,江苏如东人,信息工程大学博士研究生,研究方向移动通信CDMA技术.
