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Title:
Frequency Domain Quadrature Error Correction
Author:
Ulf Händel: Acreo AB, Sweden
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Year:
2003
Conference:
GigaHertz 2003. Proceedings from the Seventh Symposium
Issue:
008
Article no.:
042
No. of pages:
4
Publication type:
Poster
Published:
2003-11-06
Series:
Linköping Electronic Conference Proceedings
ISSN (print):
1650-3686
ISSN (online):
1650-3740
Publisher:
Linköping University Electronic Press; Linköpings universitet
Many new wireless comunication standards use complex modulation schemes with many subcarriers; which put high requirements on small Quadrature Errors. Linearization schemes such as digital predistortion also put high requirements on Quadrature Errors and in-band filter response.
This paper describes the development of an adaptive signal processing algorithm aiming to correct frequency dependent Quadrature Errors and to improve the in-band frequency response simultaneously. The correction is done in frequency domain using 4-by-4 matrix multiplication with different coefficients for different subcarrier group
Theory and simulation suggest that these algorithms substantially can improve the transceiver performance and/or relax the requirements on its analogue and mixed signal components.
GigaHertz 2003. Proceedings from the Seventh Symposium
Author:
Ulf Händel
Title:
Frequency Domain Quadrature Error Correction
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No references available
GigaHertz 2003. Proceedings from the Seventh Symposium
Author:
Ulf Händel
Title:
Frequency Domain Quadrature Error Correction
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