Dissertation > Excellent graduate degree dissertation topics show

Delay chaotic system synchronization and circuit simulation

Author: CuiZhiYong
Tutor: ZhangXiaoHong
School: Jiangxi University of Technology
Course: Communication and Information System
Keywords: Delay chaotic synchronization The Lyapunov-krasovskii functional Routh stability criterion Circuit simulation Synchronous control
CLC: TN918
Type: Master's thesis
Year: 2010
Downloads: 201
Quote: 0
Read: Download Dissertation

Abstract


Delay chaotic system is an infinite-dimensional system, it can produce a relatively simple structure, but hyperchaotic system, which contains multiple positive Lyapunov exponent time series with high randomness and unpredictability, so secure communications to have broad application prospects. The chaos synchronization control the chaotic secure communication is one of the key technologies. However, for synchronization and application studies mainly focused on the theoretical method analysis, system simulation research is still in its infancy, so that makes the chaos theory still and there is a certain distance between the actual engineering applications. Delay chaotic system as the research object, to carry out the study of the following aspects: (1) investigate the delay introduced into the chaotic system known to construct a new delay system. Routh stability criterion theory, control system theory discriminant delay-dependent stability of the equilibrium point of the chaotic system, and the analysis of the stability of the system at the equilibrium point in determining the system parameter conditions. (2) the use of modern control technology, chaos synchronization program delay systems. Through the Lyapunov-krasovskii functional method projected chaotic state track reached asymptotically stable conditions and numerical simulation. Synchronous applications, the delay chaotic synchronization applied to the audio secure communication, the experiment proved no audio signal in chaos under cover by the noise effective attack, the secure communication method has good anti-jamming. (3) In order to enhance the chaotic behavior of nonlinear systems, the use of electronic working platform Multisim software Lorenz chaotic system improved time delay oscillator circuit simulation experiment. Circuit design confirmed the delay chaotic system does exist in nature, the output waveform and phase diagram has obvious characteristics of chaos. (4) the design of a certain proportion of coupling coefficient delay chaotic drive system and response system coupled synchronous control. And chaotic synchronization control circuit, the two properties of the same time lag the 4D Lorenz system can be realized fully synchronized, which can be verified in the circuit simulation. This paper constructs two types of delay chaotic synchronization system is able to achieve a satisfactory synchronization. Chaotic circuit design delay strengthens the chaotic behavior of nonlinear systems, can be used as a high-dimensional chaotic generator, has potential applications in secure communication and image encryption. Chaos Control circuit simulation confirmed the effectiveness of the program proposed chaotic coupled synchronization, and synchronization control can be achieved in accordance with the actual needs of the coupling ratio.

Related Dissertations

  1. Micropower Impulse Radar Design,TN958
  2. Research of A Practical Nanosecond High-voltage Pulse Power Source,TM46
  3. Synchronization Control System Based on CORTEX-M3 and CAN Bus,TP273
  4. The Study of Hydraulic Synchronous Control of Lifting Platform of the Straddle-Type Monorail Vehicle Bogie Separated Equipment,U270.33
  5. Research and Realization of the Shaftless Driven Printing Control System,TP273
  6. Development of All Fiber High Speed Time-domain OCT System,TN253
  7. Research on Planar Passive Integration for EMI Filter of Switching Mode Power Supplies,TN713
  8. Reseach of Rolling Zone Tracking System and Gap Control of Finishing Mill for Plate,TG334.9
  9. Bodywork Design and Performance Research of Hydraulic Driving System for Conveying Vehicle of Hydraulic Support of Mining,TD355.4
  10. \,TN0-4
  11. Research on Dynamic Characteristics of Electro-hydraulic Control System of the Ring Gate Based on AMESim,TP273
  12. Technology on Design and Implementation of Multi-Mode Radar Waveform System,TN957.51
  13. The Coarse and Fine Coupling and Synchronous Control of the Lithographic Projection Apparatus;the Coarse and Fine Coupling and Synchronous Control of the Lithographic Projection Apparatus,TN305.7
  14. Development of the Shaftless Drives Controller Based on Embedded,TM571
  15. Study on All Parallel Directly Feeding System with Reinforce Wire,U223.6
  16. Research of Smart Switch for Inrush Current Control and Short-circuit in Dynamic Simulation System,TM564
  17. Design and Implementation of Placement Machine’s Double-Motor Synchronization Control System,TM301.2
  18. Design of Power Driver for High-power Led,TM923.34
  19. The Design and Research of the New Double Hoisting Hydraulic Hoister,TV664.2
  20. Design of Motion Control Board and Research on Synchronous Methods of Wafer Stage and Reticle Stage,TN405
  21. Research on Synchronization Control of the Dual Hydraulic Driven Motors Based on Quantitative Feedback Theory,TP273.2

CLC: > Industrial Technology > Radio electronics, telecommunications technology > Communicate > Confidentiality of communications and communications security
© 2012 www.DissertationTopic.Net  Mobile