FFT-based block sequential least squares adaptive FIR equalizer for terrestrial HDTV broadcasting

Author

Hu, Xiao-Yu ; Yu, Xiao-Hu ; Zha, Chun-Ming

Author_Institution

Nat. Commun. Res. Lab., Southeast Univ., Nanjing, China

Volume

43

Issue

2

fYear

1997

fDate

5/1/1997 12:00:00 AM

Firstpage

141

Lastpage

148

Abstract

We present an FFT-based block sequential least squares adaptive FIR equalizer for terrestrial HDTV broadcasting. This equalizer provides fast convergent rate as well as good numerical stability. Of great significance is its drastic reduction in computational complexity by means of efficient FFT technology and block operation. Simulation results show that the equalizer achieves almost 2.5 dB SNR improvement at a bit error rate of 3×10^-6 with almost the same computational complexity relative to the LMS decision feedback equalizer (DFE) recommended by the Grand Alliance

Keywords

FIR filters; adaptive equalisers; computational complexity; fast Fourier transforms; high definition television; least squares approximations; numerical stability; television broadcasting; BER; FFT technology; FFT-based block sequential least squares; Grand Alliance; LMS decision feedback equalizer; SNR; adaptive FIR equalizer; bit error rate; block operation; computational complexity reduction; fast convergent rate; numerical stability; simulation results; terrestrial HDTV broadcasting; Bit error rate; Broadcasting; Computational complexity; Computational modeling; Decision feedback equalizers; Finite impulse response filter; HDTV; Least squares approximation; Least squares methods; Numerical stability;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.585532

Filename

585532