Title :
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
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;
Conference_Titel :
Vehicular Technology Conference, 1994 IEEE 44th
Conference_Location :
Stockholm
Print_ISBN :
0-7803-1927-3
DOI :
10.1109/VETEC.1994.345124
