电讯技术2018，Vol.58Issue(4)：418-423,6.DOI:10.3969/j.issn.1001-893x.2018.04.010
无码间干扰DC-CDSK混沌通信方案
A DC-CDSK Chaotic Communication System without Inter-symbol Interference
摘要
Abstract
For existing defects of high bit error rate(BER) caused by inter-symbol interference(ICI) in the Differential Chaos-Correlation Delay Shift Keying(DC-CDSK),a novel DC-CDSK chaotic communi-cation system without inter-symbol interference is proposed. By changing the structure of chaotic signal generator,the modulated chaotic signals transmitted in two channels become strictly orthogonal,which thor-oughly eliminates all possible inter-symbol interference component in all decision variables.The BER for-mula in Gaussian channel is derived and numerous simulations are completed.The simulation results show that the BER performance in proposed DC-CDSK without inter-symbol interference increases by 2~3 dB compared with that of the conventional DC-CDSK under certain signal-to-noise ratio(SNR) and sprea-ding factor.关键词
混沌通信/DC-CDSK/判决变量/码间干扰Key words
chaotic communication/DC-CDSK/decision variables/inter-symbol interference分类
信息技术与安全科学引用本文复制引用
张刚,许嘉平,张天骐..无码间干扰DC-CDSK混沌通信方案[J].电讯技术,2018,58(4):418-423,6.基金项目
国家自然科学基金资助项目(61371164) （61371164）
重庆市教育委员会科研项目(KJ1600429) （KJ1600429）
