摘要
针对非周期混沌序列的同步难度大的问题,文章提出了一种基于相位偏移量的混沌同步方法。该方法将混沌序列的相位偏移信息采用差分混沌相移键控调制发送到接收端,接收端将解调出的相位偏移信息与本地相位相比较,以此调整本地混沌序列相位,加速或延缓混沌迭代,直到与接收序列同步。仿真结果表明,该方法能够准确地实现混沌非周期序列的同步。
Aiming at the difficulty of synchronization for non-periodic chaotic sequence,a chaos synchronization method based on phase offset is proposed.The phase offset information is sent to the receiving end by differentially chaos phase-shift keying modulation.In the receiving end,the phase offset information is demodulated,and compared with the local phase.And adjust the local phase of chaotic sequence,accelerating or delaying the chaos iteration,until synchronizing with the received sequence.Simulation results show that this method could achieve synchronization of non-periodic chaotic sequence.
出处
《数字技术与应用》
2011年第10期37-39,共3页
Digital Technology & Application
关键词
相位偏移量
差分混沌相移键控
循环移位
混沌同步
Phase offset Differentially chaos phase-shift keying Chaos synchronization Cyclic shift
