Estimation of chaotic signals with applications in communications
Tipo
Artigo de evento
Data de publicação
2009
Periódico
IFAC Proceedings Volumes (IFAC-PapersOnline)
Citações (Scopus)
2
Autores
Eisencraft M.
Do Amaral M.A.
Lima C.A.M.
Do Amaral M.A.
Lima C.A.M.
Orientador
Título da Revista
ISSN da Revista
Título de Volume
Membros da banca
Programa
Resumo
In this paper we extend an estimation technique based on Viterbi algorithm for discrete-time chaotic signals immersed in noise. The proposed modification allows for orbits generated by maps with nonuniform invariant density to be estimated. This modified Viterbi algorithm is used in two digital modulation schemes: the Modified Maximum Likelihood Chaos Shift Keying using one and two maps. Both have better symbol error rate characteristics than non-coherent chaos communication schemes. © 2009 IFAC.
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Assuntos Scopus
Chaos communications , Chaos-shift keying , Chaotic signal , Digital communications , Digital modulations , Discrete-time , Estimation techniques , Estimation theory , Invariant densities , Non-coherent , Symbol error rates