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Accession number:  

20125215839806

              
Title:  
Design and implementation of a simple nonlinear transformation circuit for generating more chaotic signals
      
Authors:  
Chen, Hong1 Email author chenhongdeepred@163.com; Wu, Ling1; Lin, Liandong1  
    Author affiliation:  1 College of Electronic Engineering, Heilongjiang University, No. 74, Xuefu Road, Harbin 150080, China  
      
Corresponding author:  
Chen, H. (chenhongdeepred@163.com)  
         
Source title:  
ICIC Express Letters
   
Abbreviated source title:  
ICIC Express Lett.
   
Volume:  
6
   
Issue:  
12
         
Issue date:  
2012
   
Publication year:  
2012
        
Pages:  
3131-3136
        
Language:  
English
   
ISSN:  
1881803X   
            
Document type:  
Journal article (JA)
              
Publisher:  
ICIC Express Letters Office, Tokai University, Kumamoto Campus, 9-1-1, Toroku, Kumamoto, 862-8652, Japan
      
Abstract:  
A simple transformation method which is based on the k2x2 + k3x3 nonlinear polynomial is put forward in this paper. The experiment analyzes this method by Lyapunov Exponent, and indicates that it increases the complexity of the chaotic signals. The circuit of this method is designed and implemented via electronic components. A large number of physical experimental analyses are conducted to the chaotic signals generated by Chua's circuit. The experimental results prove that the circuit can make a rapid transformation to the chaotic signals produced by all sorts of chaotic systems, and generate many more kinds of chaotic signal conveniently. © 2012 ISSN 1881-803X.
            
Number of references:  
13
               
Main heading:  
Mathematical transformations  
      
Controlled terms:  
Chaotic systems  -  Lyapunov methods  
   
Uncontrolled terms:  
Chaotic signal  -  Chua's circuit  -  Electronic component  -  Experimental analysis  -  Lyapunov exponent  -  Non-linear transformations  -  Nonlinear polynomials  -  Physical electronics  -  Rapid transformations  -  Transformation methods  
        
Classification code:  
921 Mathematics -  921.3 Mathematical Transformations -  931 Classical Physics; Quantum Theory; Relativity -  961 Systems Science
                        
Database:  
Compendex
   Compilation and indexing terms, © 2014 Elsevier Inc.

Accession number:  

20142717903751

              
Title:  
Improvement of the chaotic image encryption effect based on unary polynomial transformation
      
Authors:  
Wu, Ling1; Chen, Hong1 Email author chenhongdeepred@163.com; Yang, Kai1  
    Author affiliation:  1 College of Electronic Engineer, Heilongjiang University, No. 74, Xuefu Road, Harbin 150080, China  
              
Source title:  
ICIC Express Letters
   
Abbreviated source title:  
ICIC Express Lett.
   
Volume:  
8
   
Issue:  
6
         
Issue date:  
June 2014
   
Publication year:  
2014
        
Pages:  
1633-1638
        
Language:  
English
   
ISSN:  
1881803X   
            
Document type:  
Journal article (JA)
              
Publisher:  
ICIC Express Letters Office
      
Abstract:  
In this paper, the unary polynomial is used to conduct a nonlinear transformation to the signal generated by Chua's chaotic system. The maximum Lyapunov Exponent calculations confirm that the transformed signal is more complex than the signal before transformation. This is the first time that the unary polynomial transformation is applied to chaotic image encryption. A great number of simulation experiments on the image encryption are done by using transformed chaotic signal. And the encryption effects are compared and analyzed. The results show that, while chaos is degenerating, the unary polynomial transformation can effectively improve the effect of chaos-based image encryption. © 2014 ISSN 1881-803X.
            
Number of references:  
10
               
Main heading:  
Mathematical transformations  
      
Controlled terms:  
Chaotic systems  -  Cryptography  -  Image processing  -  Lyapunov methods  -  Polynomials  
   
Uncontrolled terms:  
Chaotic degeneration improvement  -  Chaotic signal  -  Image encryptions  -  Maximum Lyapunov exponent  -  Non-linear transformations  -  Polynomial transformations  
        
Classification code:  
716 Telecommunication; Radar, Radio and Television -  717 Optical Communication -  718 Telephone Systems and Related Technologies; Line Communications -  723 Computer Software, Data Handling and Applications -  741 Light, Optics and Optical Devices -  921 Mathematics -  931 Classical Physics; Quantum Theory; Relativity -  961 Systems Science
                        
Database:  
Compendex
   Compilation and indexing terms, © 2014 Elsevier Inc.

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