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| Paper: | SPTM-P6.9 |
| Session: | Non-Stationary Signal Analysis and Modeling |
| Time: | Thursday, May 20, 09:30 - 11:30 |
| Presentation: |
Poster |
| Topic: |
Signal Processing Theory and Methods: Non-stationary Signals & Time-Frequency Analysis |
| Title: |
SPATIAL AND POLARIZATION CORRELATIONS IN NONSTATIONARY ARRAY PROCESSING |
| Authors: |
Moeness Amin; Villanova University | | |
| | Yimin Zhang; Villanova University | | |
| Abstract: |
Bilinear synthesis of nonstationary signals impinging on a multi-antenna receiver has been recently introduced. The distinction in the spatial signatures of the sources provides a vehicle to reduce noise and source signal interactions in the time-frequency domain, and hence improves signal synthesis. In this paper, in addition to the spatial domain information, we utilize polarization diversity for enhanced source time-frequency signal representations. It is shown that dual-polarization antennas can be used to mitigate cross-terms via a combined spatial and polarization averaging. Significant reduction in cross-terms can be realized by providing large spatial diversity, large polarization diversity, or a combined moderate values of the respective spatial and polarization correlations. |
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