一种新型FM-DCSK保密通信系统

张刚; 王源; 王颖

doi:10.11959/j.issn.1000-0801.2015005

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一种新型FM-DCSK保密通信系统

研究与开发 | 更新时间：2024-06-05

- 一种新型FM-DCSK保密通信系统
- A Novel FM-DCSK Secure Communication System
- 电信科学 2015年31卷第1期页码：53-57
- 作者机构：
- 作者简介：
  
  [ "张刚，男，博士，重庆邮电大学副教授，主要研究方向为混沌同步、混沌保密通信等。" ]
  [ "王源，男，重庆邮电大学硕士生，主要研究方向为混沌同步、混沌保密通信等。" ]
  [ "王颖，女，重庆邮电大学硕士生，主要研究方向为微弱信号混沌检测。" ]
- 基金信息：
  
  国家自然科学基金资助项目;The National Natural Science Foundation of China(61371164);国家自然科学基金资助项目;The National Natural Science Foundation of China(61071196);国家自然科学基金资助项目;The National Natural Science Foundation of China(61102131);教育部新世纪优秀人才支持计划基金资助项目;The Program for New Century Excellent Talents in University(NCET-10-0927);信号与信息处理重庆市市级重点实验室建设基金资助项目;The Project of Key Laboratory of Signal and Information Processing of Chongqing(CSTC2009CA2003);重庆市杰出青年基金资助项目;The Chongqing Distinguished Youth Foundation(CSTC2011jjjq40002);重庆市自然科学基金资助项目;The Natural Science Foundation of Chongqing(CSTC2010BB2398);重庆市自然科学基金资助项目;The Natural Science Foundation of Chongqing(CSTC2010BB2409);重庆市自然科学基金资助项目;The Natural Science Foundation of Chongqing(CSTC2010BB2411);重庆市自然科学基金资助项目;The Natural Science Foundation of Chongqing(CSTC2012JJA40008);重庆市教育委员会科研基金资助项目;The Research Project of Chongqing Educational Commission(KJ120525);重庆市教育委员会科研基金资助项目;The Research Project of Chongqing Educational Commission(KJ130524)
- DOI：10.11959/j.issn.1000-0801.2015005
  中图分类号：
- 网络出版日期：2015-01，
  
  纸质出版日期：2015-01-20
- 稿件说明：
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张刚, 王源, 王颖. 一种新型FM-DCSK保密通信系统[J]. 电信科学, 2015,31(1):53-57.

Gang Zhang, Yuan Wang, Ying Wang. A Novel FM-DCSK Secure Communication System[J]. Telecommunications science, 2015, 31(1): 53-57.
张刚, 王源, 王颖. 一种新型FM-DCSK保密通信系统[J]. 电信科学, 2015,31(1):53-57. DOI： 10.11959/j.issn.1000-0801.2015005.

Gang Zhang, Yuan Wang, Ying Wang. A Novel FM-DCSK Secure Communication System[J]. Telecommunications science, 2015, 31(1): 53-57. DOI： 10.11959/j.issn.1000-0801.2015005.

摘要

为解决DCSK系统中混沌信号比特能量的不恒定会引起估计干扰从而造成误码率下降，同时该系统的传输速率较低，保密性较差这一问题。提出FM调制与改进型的DCSK系统相结合的方法，通过使用FM调制使混沌信号能量保持恒定从而提高了系统误码性能，同时结合使用两条信道的改进型DCSK的方案进一步提高系统传输效率以及系统安全性能。最后通过理论分析与仿真实验结果比较证明了改进后的系统相关性能得到极大提高。

Abstract

The bit energy of chaotic signals in DCSK system is not stable

which will cause the estimation interference and the bit error rate decline. At the same time

the system's transmission rate is lower and the security is poorer compared with other system. In order to solve these problems

a novel FM-DCSK secure communication system was proposed which was combined the FM modulation with the modified DCSK system.The bit energy of signals remained stable by using FM modulation so that the BER performance in such system can be improved. Meanwhile

the system was also combined with the modified DCSK system which uses two-channel scheme

therefore it can improve the transmission efficiency and further improve the security performance. Finally

the theoretical analysis and the simulation results prove that the relative performance in this proposed system can be greatly improved.

关键词

Keywords

references

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