太赫兹科学与电子信息学报Issue(3)：362-368,7.DOI:10.11805/TKYDA201403.0362
一种高安全性的复合混沌序列的性能研究
Performance of a new compound chaotic sequence with high security
李昂 1常青1
作者信息
- 1. 北京航空航天大学 电子信息工程学院，北京 100191
- 折叠
摘要
Abstract
Based on the Logistic chaotic sequence and Chebyshev chaotic sequence, a new compound chaotic sequence is proposed. Simulations are performed to study the chaotic properties and spread spectrum properties such as initial sensitivity and correlation of this new compound chaotic sequence. The simulation results show that the compound chaotic sequence bears a stronger initial sensitivity and a higher level of complexity. The compound chaotic sequence is not only superior to the original chaotic sequence at balance and correlation performance, but also shows some advantages over the P-code which has been applied in the GPS system. An optimized selection algorithm is proposed to select a group of chaotic sequences with good performance. The results of this algorithm show that the compound chaotic sequences outnumber Logistic and Chebyshev chaotic sequences by about 31% and 67% respectively, which means that the compound chaotic sequence owns the largest number of sequences with satisfied properties. Therefore, the compound chaotic sequence is a kind of spread spectrum sequence which can be easily generated and bears a high level of security and good spread spectrum performance.关键词
复合/混沌序列/P码/安全性/相关性Key words
compound/chaotic sequence/P-code/security/correlation分类
信息技术与安全科学引用本文复制引用
李昂,常青..一种高安全性的复合混沌序列的性能研究[J].太赫兹科学与电子信息学报,2014,(3):362-368,7.
