Adaptive algorithms, combinations and applications in deconvolution
Inovation on bovine early pregnancy diagnosis - hypothesis comprovation and produc...
Studies of dynamical properties and synchronization of coupled chaotic oscillators
| Full text | |
| Author(s): |
Total Authors: 3
|
| Affiliation: | [1] Univ Sao Paulo, Escola Politecn, BR-05508010 Sao Paulo - Brazil
Total Affiliations: 1
|
| Document type: | Journal article |
| Source: | DIGITAL SIGNAL PROCESSING; v. 33, p. 42-49, OCT 2014. |
| Web of Science Citations: | 5 |
| Abstract | |
Many communication systems applying synchronism of chaotic systems have been proposed as an alternative spread spectrum modulation that improves the level of privacy in data transmission. However, due to the lack of robustness of chaos synchronization, even minor channel imperfections are enough to hinder communication. In this paper, we propose an adaptive equalization scheme based on a modified normalized least-mean-squares (NLMS) algorithm, which enables chaotic synchronization when the communication channel is not ideal. As an example of application, this scheme is used to recover a binary sequence modulated by a chaotic signal generated by the Henon map. Simulation results show that the modified NLMS can successfully equalize the channel in different scenarios. (C) 2014 Elsevier Inc. All rights reserved. (AU) | |
| FAPESP's process: | 14/04864-2 - Spectral analysis of chaotic signals with applications in communications |
| Grantee: | Marcio Eisencraft |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 12/24835-1 - Adaptive algorithms, combinations and applications in deconvolution |
| Grantee: | Magno Teófilo Madeira da Silva |
| Support Opportunities: | Regular Research Grants |