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一种基于非同步FM-DCSK的混沌通信仿真

张翌维1;柯熙政1;张晓奇2   

  1. (1. 西安理工大学 自动化学院, 陕西 西安 710048;
    2. 陕西省科技信息研究所, 陕西 西安 710054)

  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2004-06-20 发布日期:2004-06-20

Chaos communication simulation based on asynchronous FM-DCSK

ZHANG Yi-wei1;KE Xi-zheng1;ZHANG Xiao-qi2

  

  1. (1. Automation College of Xi'an Univ. of Technology, Xi'an 710048, China;
    2. Shaanxi Sci-tech and Information Institute, Xi'an 710054, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2004-06-20 Published:2004-06-20

摘要: 给出一种基于FM-DCSK(调频-差分混沌移位键控)的非同步解调方法,利用码元位置匹配的思想解决了解调过程中的同步问题,降低了系统要求.在加入一定均匀噪声的情况下,仍解调出原始位信息.仿真结果表明该方法有效可行.

关键词: 混沌, 非同步, FM-DCSK, 通信仿真

Abstract: This paper presents and asynchronous demodulation method based on FM-DCSK and solves the synchronous problem is demodulation by amtching of the code element position, which lowers the system requirement. The method can demodulate original information evey if some noise is added to the system. Compared with the demodulation results of ideal synchronization, the simulation results prove the efficiency and practicality of this method.

Key words: chaos, asynchronization, FM-DCSK, communication simulation

中图分类号: 

  • TN92