chaotic communication 中文意思是什麼

chaotic communication 解釋
混沌通訊
  • chaotic : adj. 渾沌的；混亂的。adv. -ically
  • communication : n. 1. 通訊，通知；交換；信息；書信，口信，通報。2. 傳達，傳授；傳播；傳染。3. 交通，交通機關；聯系，連絡（設備）。4. 【宗教】接受聖餐。
  1. Nonlinear feedback synchronization method of chaotic genesio system with application to secure communication

    混沌系統的非線性反饋同步及其在保密通信中的應用
  2. In this thesis, first, we present the theory of sess system, the generation of the sess spreading code and its characteristics and the acquisition theory of conventional spread spectrum communication system. an efficient acquisition scheme based on periodically transmitting the synchronization head, which is composed of binary chaotic codes, using the matched filter and automatic decision threshold - level control based on a so - called constant false alarm criterion for sess system is present. the acquisition model of sess system is built and simulated in the awgn channel, the raleigh fading channel and imulti - address interfere condition

    本文首先概述了自編碼擴頻通信的原理、自編碼擴頻序列的產生方法及其特性和擴頻通信系統編碼同步的理論，然後針對自編碼擴頻通信系統提出了擴頻序列捕獲方案:周期性地加入混沌序列同步碼，並採用恆虛警率匹配濾波器捕獲法;在加性白高斯噪聲通道、瑞利衰落通道和多址干擾情況下進行了模擬，分析了各種捕獲性能:在選擇性能最優的混沌序列、適當的序列長度、虛警概率及門限值的情況下，可以獲得較短的捕獲時間和較大的捕獲概率。
  3. Do a estimation is often encountered in vary application of radar and communication system. the dissertation then discusses the estimation of interested signals in chaotic noise. we analyzed three different algorithm for this purpose

    混沌背景中的有用信號的參數估計問題是在雷達應用（如波達方向估計）和混沌調制的通信系統中窄帶干涉抵消中經常遇到的重要問題之一。
  4. A simple structured chaotic modulation circuit for secure communication system

    一種結構簡捷的混沌調制保密通信系統電路
  5. Simulation of chaotic secure speech communication

    混沌語音保密通信模擬實驗
  6. The algorithm have the good one - way property, high sensitivity to initial values and good security due to the intrinsic characteristic of chaotic system and rijndael algorithm. the simulation experiment demonstrates the convenience and good hash performance ; 3 ) a new scheme of digital voice secure communication was proposed based on chaotic modulation without additional synchronization. the modulation sequence generated by chaotic logical mapping was used to encrypt the digital voice signal

    混沌系統和rijndael演算法的固有特點使該演算法具有較好的安全性、對初值有高度的敏感性以及較好的單向性能，並且易於實現，是一種有效的單向hash函數； 3 ）研究了一種無需同步的基於混沌調制的數字語音保密通信系統的方案，利用邏輯映射產生混沌調制序列，以該序列作為密碼對數字語音進行加密處理，為了更好的隱匿信號特徵，混沌調制在小波分解的基礎上，對不同的通道使用不同的參數進行，並借鑒混沌掩蓋對信息信號進行了限幅處理，使密文完全隨機化。
  7. This short period of recovery time can be used to decode transmitted message in the receiver. our numerical simulations for chaotic communication in single - mode and multi - mode laser systems show the feasibility of the schemes respectively. in two multi - mode lasers, the scheme of chaotic communication can enhance the privacy

    我們分別對單模激光系統混沌同步通訊和多模激光系統混沌同步通訊進行了相應的數值模擬，數值模擬的結果表明，這種利用混沌同步進行保密通訊的方案是可行的，在多模激光系統中的混沌通訊還可以大大提高保密度。
  8. Synchronization of lasers coupling system and its application in optical fiber chaotic secure communication

    激光耦合同步及其在光纖混沌保密通信中的應用
  9. In this dissertation, researches on chaotic signal generating, processing and application in communication systems are carried out hie main originality in this paper can be summarized as below : 1. studies on chaos generation. ( 1 ) a new chaos family based on quadratic function is promoted, their lyapunov exponents are calculated

    本文主要內容涉及基礎研究和應用研究，其中包括： 1 ）進行了關于混沌信號發生器的若干研究； 2 ）進行了關于混沌信號處理的若干研究； 3 ）進行了關于混沌信號在保密通信和跳頻擴頻通信中的應用的若干研究。
  10. The general requirement of communication system and the application potential in secure communication are expatiated. the chaotic secure communication methods home and abroad are also summarized, including chaos spread spectrum communication, chaos key - shifting, chaos parameter modulation, chaos masking, chaos cdma. the exiting problems and development direction are also pointed out respectively

    介紹了混沌學的發展過程和意義，闡述了通信系統的一般要求和混沌在保密通信中的應用潛力，綜述了國內外現有的混沌保密通信方法，其中包括：混沌擴頻通信，混沌鍵控，混沌參數調制，混沌掩蓋，混沌數字碼分多址等五大類，指出了各自存在的問題和發展方向。
  11. The commemt on the development of chaotic communication techniques

    混沌通信技術發展評述
  12. Chaotic communication techniques based on chua ' s circuit

    基於統一混沌系統參數調制的保密通信方案
  13. Performance analysis of de - noising and security for a chaotic communication system based on mixing several chaotic maps

    一種基於混沌混合映射通信系統的降噪及安全性能分析
  14. As a nonlinear system, the chaotic communication system will be analyzed on the nonlinear systemic theory

    由於混沌通信系統為非線性系統，因此，採用非線性系統理論進行分析。
  15. Finally, in chapter 6, the noise reduction methods based on manifold decomposing for chaotic communication schemes ar

    投影的方法不僅適用於加性噪聲，而且對動力系統噪聲也是有效的。
  16. The result of the evaluation is that the dynamic caishi circuit provides a new chaos generator to the chaotic communication and the investigation of chaos

    結果證明這種變型蔡氏電路為混沌通信和混沌現象的研究提供了一種新的混沌發生器。
  17. In this paper, the chaotic communication scheme successfully applied in two single - mode lasers is discussed. different schemes about the chaotic communication in multi - mode lasers are analyzed. the future research in this area is introduced

    文中分析了利用兩臺單模激光的混沌同步進行通訊的成功方案，討論了利用兩臺多模激光混沌同步進行通訊的幾種方式，介紹了這一領域的研究進展和前景。
  18. Secondly, we analyse the anti - jamming performance of coherent csk system and non - coherent dcsk system under a narrowband sine wave jamming, and analyse the performance of chaotic communication system under coexisting with a conventional spread spectrum communication system, such as direct - sequence spread spectrum ( ds - ss ) system

    其次，詳細分析了相干csk系統和非相干dcsk系統的抗窄帶正弦干擾能力，以及與傳統擴頻通信系統（以ds - ss為例）共存時，傳統擴頻通信系統對它們的影響。
  19. As a complex nonlinear dynamics behavior, chaos is a general phenomenon in nature and is one of the most important discoveries in the 20th century later. chaos, which is generated by non - linear dynamical system, possesses many unusual characteristics and these characteristics enable chaos to have a great charming prospect and practical value in secure communication field. recently, chaotic communication has become a new and promising subject, so this dissertation selects it as research direction, and analyses emphatically the applications of chaos in cdma communication system. the main works are as follows : ( 1 ) chaotic phenomena and its related problems are summarized, and these problems, such as the relation of spread - spectrum code in cdma communication system and chaotic sequences, and the relation of chaotic synchronization and system secret performance, are discussed

    混沌是一種特殊復雜的非線性動力學行為，也是自然界普遍存在的現象，被認為是二十世紀末期最重要的科學發現之一。有確定性非線性動力學系統產生的混沌具有許多奇異的特性，顯示了混沌在保密通信等領域有著誘人的應用前景和重大的實用價值，目前，混沌理論在通信中的應用是一個全新的前沿課題。本文以此作為研究方向，著重分析了混沌在碼分多址通信系統中的應用。
  20. ( 2 ) the three numeric methods, including formula method, histogram method and feature vector method, of calcucation invariant probability distribution for chaotic map is derived, and their characteristics are discussed each other, these results of the computer simulation are in agreement with those of theoretic analysis. ( 3 ) the principles and methods of chaotic communication are reviewed and commented systematically. first, several main chaotic synchronization methods are discussed, then the methods and ways of chaotic communication are explored, including analogue chaotic communication, digital chaotic communication and direct chaotic communication. this is the article basis, and it startes from follow - up case study

    所做的工作總結如下： （ 1 ）綜述了混沌現象及其理論的相關問題並對碼分多址通信系統的擴頻地址編碼與混沌序列、混沌同步與系統保密性等問題作了討論； （ 2 ）研究了計算混沌映射不變分佈的三種數值方法，即：公式法、直方圖法以及特徵向量法，並比較了各自的優缺點，計算機模擬結果與理論分析結果相符。
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