FPGA realization of a chaotic communication system applied to image processing

2015 ◽  
Vol 82 (4) ◽  
pp. 1879-1892 ◽  
Author(s):  
E. Tlelo-Cuautle ◽  
V. H. Carbajal-Gomez ◽  
P. J. Obeso-Rodelo ◽  
J. J. Rangel-Magdaleno ◽  
J. C. Núñez-Pérez
Author(s):  
H. Chinthaka ◽  
N. Premachandra ◽  
Tomohiro Yendo ◽  
Takaya Yamasato ◽  
Toshiaki Fujii ◽  
...  

2003 ◽  
Vol 13 (04) ◽  
pp. 963-972 ◽  
Author(s):  
BAO-YUN WANG ◽  
T. W. S. CHOW ◽  
K. T. NG

In this article the identification of AR system driven by chaotic sequences is addressed. This problem emerges in chaotic communication system, in which chaos-modulated signal passes through a channel described as an AR system. Two adaptive algorithms are presented to tackle this problem. Compared with the existing algorithms such as MPSV and MNPE, the proposed algorithms have very low computational complexities and can be used to track the system parameters in a slowly time-variant environment. The obtained simulation results illustrate that the proposed scheme can offer a better estimation accuracy than the conventional typical method in the high SNR case.


2005 ◽  
Author(s):  
Deyuan Chang ◽  
Kai Zheng ◽  
Lina Ma ◽  
Ting Chen ◽  
Shuisheng Jian

2003 ◽  
Vol 13 (06) ◽  
pp. 1599-1608 ◽  
Author(s):  
Chao Tao ◽  
Gonghuan Du ◽  
Yu Zhang

In this paper, we propose a new approach to breaking down chaotic communication scheme by attacking its encryption keys. A remarkable advancement is that it can decode the hidden message exactly. This makes it become possible to break down some cascaded chaotic communication systems. We also decode digital information from the cascaded heterogeneous chaotic communication system and give the simulation results.


2018 ◽  
Vol 1 (1) ◽  
pp. 4
Author(s):  
Noman Ahmed Siddiqui ◽  
Ali Akbar Siddique ◽  
Fahad Farooq ◽  
M. Tahir Qadri

Inability to speak or to talk is called muteness ormutism; often caused by speech disorder, loss of hearing or insome cases, surgery. The families of these people suffering fromsuch disease often learn sign languages like American SignLanguage (ASL) to communicate, but if a mute person meetssomeone who doesn’t know ASL then there will be acommunication barrier between them. So, to overcome thiscommunication barrier we require a system through which amute person can communicate with everyone, hence breakingdown a speech barrier. In this regard, we proposed a systembased on image processing to identify the sign and perform somecommon speech patterns using the speaker.


2014 ◽  
Vol 51 (1) ◽  
pp. 011403
Author(s):  
李艳芳 Li Yanfang ◽  
叶会英 Ye Huiying ◽  
史燕芳 Shi Yanfang

Sign in / Sign up

Export Citation Format

Share Document