A fully convergent joint blind equalization/phase recovery scheme for data communication systems

Author

Borrallo, J. M Paez ; Zazo, Santiago ; Alvarez, Ivan A Perez

Author_Institution

ETSI Telecomunicacion, Univ. Politecnica de Madrid, Spain

fYear

1994

fDate

8-10 Jun 1994

Firstpage

262

Abstract

Presents a new adaptive algorithm for joint blind equalization and phase recovery in data communication systems. This algorithm is mainly based on the standard decision directed algorithm (DDA) but the incorporation of both a linear constraint in the filter coefficients and an adjustable complex parameter in the decision device, provide an unimodal error surface. This attractive performance is analyzed theoretically when faced with minimum phase channels. For the more realistic situation of non minimum phase channels exhaustive simulations show that a similar behavior can be expected

Keywords

adaptive equalisers; adaptive signal detection; data communication; error analysis; filtering theory; intersymbol interference; land mobile radio; quadrature amplitude modulation; radiofrequency interference; telecommunication channels; adaptive algorithm; adjustable complex parameter; data communication systems; decision device; error surface; filter coefficients; fully convergent joint blind equalization scheme; linear constraint; minimum phase channels; nonminimum phase channels; performance; phase recovery scheme; standard decision directed algorithm; Adaptive algorithm; Adaptive equalizers; Blind equalizers; Communication systems; Data communication; Intersymbol interference; Nonlinear filters; Phase locked loops; Quadrature amplitude modulation; Telecommunications;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1994 IEEE 44th

Conference_Location

Stockholm

ISSN

1090-3038

Print_ISBN

0-7803-1927-3

Type

conf

DOI

10.1109/VETEC.1994.345124

Filename

345124