Predictive equalizer design for DVB-T system

Author

Lin, Ting-An ; Lee, Chen-Yi

Author_Institution

Dept. of Electron. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan

fYear

2005

fDate

23-26 May 2005

Firstpage

940

Abstract

We propose several new channel predictive equalizers designed for ETSI DVB-T systems. In conventional DVB-T equalizer designs, the storage of 3 symbols is needed in order to do interpolation of the CFR (channel frequency response) in the time axis. This huge amount of storage can be eliminated in our proposed predictive equalizers. We present 3 kinds of predictive equalizers to predict the trend of the CFR and the Doppler effect. After simulation and comparison among these 3 kinds of predictive equalizers and a conventional 2D linear interpolated equalizer, we can choose the 1^st order predictive equalizer with acceptable performance for a low cost solution for DVB-T system equalizer design.

Keywords

Doppler effect; OFDM modulation; digital video broadcasting; equalisers; interpolation; linear network synthesis; Doppler effect; ETSI DVB-T systems; OFDM; channel frequency response interpolation; channel predictive equalizers; linear equalizer; linear interpolated equalizer; predictive equalizer design; Costs; Data mining; Digital video broadcasting; Doppler effect; Equalizers; Frequency domain analysis; Frequency response; Interpolation; OFDM; Telecommunication standards;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on

Print_ISBN

0-7803-8834-8

Type

conf

DOI

10.1109/ISCAS.2005.1464744

Filename

1464744