火力与指挥控制2024，Vol.49Issue(9)：11-17,24,8.DOI:10.3969/j.issn.1002-0640.2024.09.002
一种时间反转的参考信号调制DCSK通信方案
A DCSK Communication Scheme Based on Time Reversal Reference Signal Modulation
摘要
Abstract
To address the problems of low information transmission rate and lack of security in the DCSK system,a time reversal reference signal modulated DCSK(TR-RM-DCSK)communication system scheme is proposed to improve the bit transmission rate and security.This scheme uses RM modulation to transmit two bits in a frame time slot.The chaotic signal carrying even information bits is not only an infor-mation signal,but also a reference signal for transmitting odd information bits.The reference signal is time reversed,the correlation between the same frame time slot signals is eliminated,thereby bit transmis-sion rate and signal security are improved.The theoretical bit error rate under Gaussian channel is derived,and performance simulation analysis is conducted on both Gaussian and Rician channels.The results show that this scheme improves error rate performance and improves system security without sacri-ficing transmission rate.关键词
差分混沌移位键控/时间反转/参考信号调制/误码性能Key words
differential chaotic shift keying(DCSK)/time reversal/reference signal modulation/error code performance分类
电子信息工程引用本文复制引用
隋涛,孙凡,冯永新,刘芳..一种时间反转的参考信号调制DCSK通信方案[J].火力与指挥控制,2024,49(9):11-17,24,8.基金项目
国家自然科学基金(61971291) （61971291）
中央引导地方科技发展专项基金资助项目(2022020128-JH6/1001) （2022020128-JH6/1001）
