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| Authors: | Ulf Händel: Acreo AB, Sweden |
| Publication title: | Frequency Domain Quadrature Error Correction |
| Conference: | GigaHertz 2003. Proceedings from the Seventh Symposium |
| Publication type: | Poster |
| Issue: | 008 |
| Article No.: | 042 |
| Abstract: | 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. |
| Language: | English |
| Year: | 2003 |
| No. of pages: | 4 |
| Series: | Linköping Electronic Conference Proceedings |
| ISSN (print): | 1650-3686 |
| ISSN (online): | 1650-3740 |
| File: | http://www.ep.liu.se/ecp/008/posters/016/ecp00816p.pdf |
| Available: | 2003-11-06 |
| Publisher: | Linköping University Electronic Press, Linköpings universitet |
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