Equalization techniques based on fast RLS algorithms to improve mobile reception performance of 8-VSB receivers

Author

Oh, Young Ho ; Park, Sung Woo ; Baek, SeongJoon ; Kim, Dae Jin

Author_Institution

Dept. of Electron. Eng., Chonnam Nat. Univ., Gwangju, South Korea

Volume

48

Issue

3

fYear

2002

fDate

8/1/2002 12:00:00 AM

Firstpage

596

Lastpage

601

Abstract

This paper presents fast and robust equalization techniques to improve ATSC DTV reception for fixed, portable, pedestrian, and mobile receivers. There are many strong and dynamic echoes affecting portable, pedestrian, and mobile reception. The conventional decision feedback equalizer using least mean square algorithm is stable and shows good performance in handling the static multipath channel. The equalizer however has difficulty in handling strong echoes and shows poor performance in tracking high Doppler frequencies. To combat strong and dynamic echoes, a fast converging equalizer using a fast transversal decision feedback algorithm combined with the least mean square method is proposed and investigated.

Keywords

amplitude modulation; convergence of numerical methods; decision feedback equalisers; digital video broadcasting; least mean squares methods; television receivers; television reception; 8-VSB receivers; ATSC DTV reception; Doppler frequencies; RLS algorithms; convergence; fixed receivers; least mean square method; mobile receivers; mobile reception performance; pedestrian receivers; performance; portable receivers; robust equalization; strong echoes; transversal decision feedback algorithm; Computational complexity; Convergence; Decision feedback equalizers; Digital TV; Filters; Frequency; Least squares approximation; Multipath channels; Resonance light scattering; Robustness;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/TCE.2002.1037047

Filename

1037047