By Topic

Blind Estimation and Compensation of I/Q Imbalance in OFDM Receivers with Enhancements Through Kalman Filtering

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Windisch, Marcus ; Vodafone Chair Mobile Communications Systems, Technische Universitÿt Dresden, Germany. Email: windisch@ifn.et.tu-dresden.de ; Fettweis, G.

I/Q imbalance has been identified as one of the key challenges in the practical implementation of the direct-conversion receiver architecture. This holds in particular at the reception of multi-carrier signals, such as OFDM. While allowing highly integrated and low-cost solutions, direct-conversionmay cause serious signal distortions due to an imbalanced I/Q down-conversion. This paper shows how blind, i.e. non reference-based, signal processing techniques can be applied for a digital estimation and compensation of I/Q imbalance. Further enhancements of the blind estimator can be achieved through the application of Kalman filtering, including tracking and compensation of time-varying and frequency-selective I/Q imbalance.

Published in:

Statistical Signal Processing, 2007. SSP '07. IEEE/SP 14th Workshop on

Date of Conference:

26-29 Aug. 2007