Correction of in phase-quadrature imbalance in the presence of multipath fading
The presence of in-phase/quadrature (I/Q) imbalance in a dual branch receiver gives rise to signal distortion. If the incoming signal is also corrupted by multipath fading, then the task of correcting or compensating for these two forms of distortion becomes technically very challenging. This paper...
| Main Authors: | , |
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| Format: | Conference Paper |
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IEEE Computer Society
2014
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| Online Access: | http://hdl.handle.net/20.500.11937/10327 |
| _version_ | 1848746202550501376 |
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| author | Haq, K. Chung, Kah-Seng |
| author_facet | Haq, K. Chung, Kah-Seng |
| author_sort | Haq, K. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The presence of in-phase/quadrature (I/Q) imbalance in a dual branch receiver gives rise to signal distortion. If the incoming signal is also corrupted by multipath fading, then the task of correcting or compensating for these two forms of distortion becomes technically very challenging. This paper proposes an adaptive approach which involves first correcting for the I/Q imbalance before the signal is compensated for the effect of multipath fading. Estimations of the I/Q imbalance and channel parameters are carried out with the aid of a common reference signal. Computer simulations have verified the effectiveness of the proposed scheme. In this case, the receiver suffers from frequency-flat I/Q imbalance of 20% gain and 5° phase deviations. Also, the incoming 64-QAM signal is assumed to have undergone a 6-path propagation. |
| first_indexed | 2025-11-14T06:29:30Z |
| format | Conference Paper |
| id | curtin-20.500.11937-10327 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:29:30Z |
| publishDate | 2014 |
| publisher | IEEE Computer Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-103272017-09-13T14:50:14Z Correction of in phase-quadrature imbalance in the presence of multipath fading Haq, K. Chung, Kah-Seng The presence of in-phase/quadrature (I/Q) imbalance in a dual branch receiver gives rise to signal distortion. If the incoming signal is also corrupted by multipath fading, then the task of correcting or compensating for these two forms of distortion becomes technically very challenging. This paper proposes an adaptive approach which involves first correcting for the I/Q imbalance before the signal is compensated for the effect of multipath fading. Estimations of the I/Q imbalance and channel parameters are carried out with the aid of a common reference signal. Computer simulations have verified the effectiveness of the proposed scheme. In this case, the receiver suffers from frequency-flat I/Q imbalance of 20% gain and 5° phase deviations. Also, the incoming 64-QAM signal is assumed to have undergone a 6-path propagation. 2014 Conference Paper http://hdl.handle.net/20.500.11937/10327 10.1109/AusCTW.2014.6766432 IEEE Computer Society restricted |
| spellingShingle | Haq, K. Chung, Kah-Seng Correction of in phase-quadrature imbalance in the presence of multipath fading |
| title | Correction of in phase-quadrature imbalance in the presence of multipath fading |
| title_full | Correction of in phase-quadrature imbalance in the presence of multipath fading |
| title_fullStr | Correction of in phase-quadrature imbalance in the presence of multipath fading |
| title_full_unstemmed | Correction of in phase-quadrature imbalance in the presence of multipath fading |
| title_short | Correction of in phase-quadrature imbalance in the presence of multipath fading |
| title_sort | correction of in phase-quadrature imbalance in the presence of multipath fading |
| url | http://hdl.handle.net/20.500.11937/10327 |