Adaptive blind equalization and tracking of fading channels using antenna arrays

Author

Tong, Lang

Author_Institution

Dept. of Electr. & Syst. Eng., Connecticut Univ., Storrs, CT, USA

fYear

1994

fDate

2-5 Oct 1994

Firstpage

32

Abstract

An adaptive blind equalisation and tracking technique is developed in this paper that provides robustness against frequency offset and the time-varying Doppler spread. Without requiring training signals, the proposed approach combines the blind sequence estimation method and an estimate-maximization (EM) approach for the adaptive joint estimation of information sequence and frequency offset. Using antenna arrays, the proposed scheme exploits important spatial diversity. It also has a structure that is attractive for adaptive implementation

Keywords

adaptive antenna arrays; adaptive equalisers; adaptive estimation; fading; maximum likelihood estimation; telecommunication channels; tracking; Viterbi algorithm; adaptive blind equalization; antenna arrays; blind sequence estimation method; estimate-maximization approach; fading channels; frequency offset; information sequence; spatial diversity; time-varying Doppler spread; tracking; Adaptive arrays; Adaptive equalizers; Antenna arrays; Blind equalizers; Doppler shift; Fading; Frequency estimation; Jitter; Robustness; Time-varying channels;

fLanguage

English

Publisher

ieee

Conference_Titel

Military Communications Conference, 1994. MILCOM '94. Conference Record, 1994 IEEE

Conference_Location

Fort Monmouth, NJ

Print_ISBN

0-7803-1828-5

Type

conf

DOI

10.1109/MILCOM.1994.473842

Filename

473842