A novel IQ imbalance compensation scheme for the reception of OFDM signals

Author

Schuchert, Andreas ; Hasholzner, Ralph ; Antoine, Patrick

Author_Institution

Motorola SPS, Munich, Germany

Volume

47

Issue

3

fYear

2001

fDate

8/1/2001 12:00:00 AM

Firstpage

313

Lastpage

318

Abstract

Digital receivers still employ analog components in the demodulation process causing amplitude and phase imbalances between the I and Q branches. This article describes a novel digital compensation scheme for orthogonal frequency division multiplex (OFDM) receivers based on adaptive frequency domain filtering to remove the IQ imbalance effects

Keywords

FIR filters; OFDM modulation; adaptive equalisers; adaptive filters; adaptive signal processing; demodulation; digital video broadcasting; filtering theory; television receivers; television reception; video signal processing; 2-tap FIR filter structure; DVB-T; OFDM receivers; OFDM signals reception; Q imbalance compensation; adaptive coefficient adjustment; adaptive frequency domain equalization; adaptive frequency domain filtering; amplitude imbalance; analog IQ downconverters; analog components; demodulation; digital TV receivers; digital compensation; digital video broadcast-terrestrial; orthogonal frequency division multiplexing; phase imbalance; Adaptive filters; Digital video broadcasting; Filtering; Frequency division multiplexing; Frequency domain analysis; OFDM; SAW filters; Signal processing; Transfer functions; Tuners;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.964115

Filename

964115