Fast recovery equalization techniques for DTV signals

Author

Deshpande, Nikhil

Author_Institution

Tektronix Inc., USA

Volume

43

Issue

4

fYear

1997

fDate

12/1/1997 12:00:00 AM

Firstpage

370

Lastpage

377

Abstract

Blind equalizers do not require any training sequence for the initial startup period but rather perform equalization blindly on the data directly. In this paper, a general approach for designing such equalizers for 8-VSB transmission systems is presented. The candidate algorithms considered here include Godard´s algorithm (Godard 1980), Sato´s algorithm (Sato 1975), the G-pseudo error algorithm using Sato´s function and the G-pseudo error algorithm using Godard´s function. This paper analyzes these algorithms for the 8-VSB transmission format and recommends the most suitable algorithm. The performance comparison parameters include MSE, convergence characteristics, computational load and accuracy of estimating the channel

Keywords

convergence of numerical methods; digital television; equalisers; telecommunication standards; television standards; video signals; 8-VSB transmission format; 8-VSB transmission systems; DTV signals; G-pseudo error algorithm; Godard´s algorithm; MSE; Sato´s algorithm; blind equalizers; channel estimation accuracy; computational load; convergence characteristics; fast recovery equalization techniques; performance comparison; Airplanes; Algorithm design and analysis; Blind equalizers; Broadcasting; Demodulation; Digital TV; Frequency selective surfaces; Robustness; Switches; Timing;

fLanguage

English

Journal_Title

Broadcasting, IEEE Transactions on

Publisher

ieee

ISSN

0018-9316

Type

jour

DOI

10.1109/11.664019

Filename

664019