本文選題：混沌同步 + 參數(shù)擾動(dòng)��； 參考：《控制理論與應(yīng)用》2014年05期

【摘要】：研究了變參數(shù)混沌系統(tǒng)的同步控制問(wèn)題及其保密通信方案設(shè)計(jì).主要?jiǎng)?chuàng)新點(diǎn)可歸結(jié)如下:第一,提出了利用混沌系統(tǒng)狀態(tài)變量來(lái)構(gòu)造變參數(shù)系統(tǒng)參數(shù)擾動(dòng)項(xiàng)的思想,研究了混沌系統(tǒng)參數(shù)在另一組混沌序列持續(xù)擾動(dòng)下的同步控制問(wèn)題.混沌系統(tǒng)對(duì)參數(shù)具有敏感依賴性,當(dāng)混沌系統(tǒng)的參數(shù)被另一組混沌序列持續(xù)擾動(dòng)時(shí),系統(tǒng)將產(chǎn)生更加難以預(yù)測(cè)的混沌行為.第二,對(duì)加密后的信息信號(hào)再進(jìn)行一次非線性疊來(lái)生成加密端與解密端之間的通信信號(hào),而不是直接以加密信號(hào)作為通信信號(hào),使得實(shí)際傳輸?shù)耐ㄐ判盘?hào)具有更復(fù)雜的形式從而難以被破譯.此外,該方案只需向接收系統(tǒng)發(fā)送一路信號(hào),且同步控制器簡(jiǎn)單,實(shí)用性較強(qiáng).數(shù)值模擬和理論分析表明該方案具有良好的通信、保密特性和較廣的適用范圍.
[Abstract]:The synchronization control problem of variable parameter chaotic systems and the design of the secure communication scheme are studied. The main innovation points are as follows: first, the idea of constructing parameter disturbance term of variable parameter system by using state variables of chaotic system is proposed, and the synchronization control problem of chaotic system parameters under the continuous disturbance of another chaotic sequence is studied. The chaotic system is sensitive to the parameters. When the parameters of the chaotic system are continuously disturbed by another group of chaotic sequences, the system will produce more unpredictable chaotic behavior. Second, the encrypted information signal is repeated once more to generate the communication signal between the encrypted end and the decryption end, instead of using the encrypted signal directly. For communication signals, the communication signals actually transmitted are more complex and difficult to be deciphered. In addition, the scheme only needs to send a signal to the receiving system, and the synchronization controller is simple and practical. Numerical simulation and theoretical analysis show that the scheme has good communication, secrecy and wide application.
【作者單位】： 湖南大學(xué)機(jī)械與運(yùn)載工程學(xué)院;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(11172093,11032004) 湖南省研究生科研創(chuàng)新基金資助項(xiàng)目(CX2012B159)
【分類號(hào)】：TN918;O415.5

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本文編號(hào)：2040916