ANFIS for parameter estimation in coherent communications phase synchronization

Author

Drake, Jeffrey T. ; Prasad, Nadipuram R.

Author_Institution

Klipsch Sch. of Electr. & Comput. Eng., New Mexico State Univ., Las Cruces, NM, USA

fYear

2001

fDate

2001

Firstpage

433

Lastpage

442

Abstract

The use of soft computing techniques in coherent communications phase synchronization provides an alternative to analytical or hard computing methods. The paper discusses a novel use of Adaptive Neuro-Fuzzy Inference Systems (ANFIS) for phase synchronization in coherent communications systems utilizing multiple phase shift keying (M-PSK) modulation. A brief overview of the M-PSK digital communications bandpass modulation technique is presented and its requisite need for phase synchronization is discussed. We briefly describe the hybrid platform developed by J.-S. Jang et al. (1997) that incorporates fuzzy/neural structures, namely the Adaptive Neuro-Fuzzy Interference Systems (ANFIS). We then discuss the application of ANFIS to phase estimation for M-PSK. The modeling of an implicit phase estimation scheme for M-PSK symbols with unknown structure are discussed. Performance results from simulation of the above scheme are presented

Keywords

fuzzy neural nets; fuzzy set theory; inference mechanisms; phase estimation; phase shift keying; synchronisation; telecommunication computing; uncertainty handling; ANFIS; Adaptive Neuro-Fuzzy Inference Systems; M-PSK digital communications bandpass modulation technique; M-PSK modulation; M-PSK symbols; coherent communications phase synchronization; fuzzy/neural structures; hybrid platform; implicit phase estimation scheme; multiple phase shift keying; parameter estimation; phase synchronization; soft computing techniques; unknown structure; Parameter estimation;

fLanguage

English

Publisher

ieee

Conference_Titel

Neural Networks for Signal Processing XI, 2001. Proceedings of the 2001 IEEE Signal Processing Society Workshop

Conference_Location

North Falmouth, MA

ISSN

1089-3555

Print_ISBN

0-7803-7196-8

Type

conf

DOI

10.1109/NNSP.2001.943147

Filename

943147