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| Title: | Coherent interference suppression with an adaptive array using spatial affine projection algorithm |
| Author (s): | Zheng, Y. Rosa Goubran, R.A. El-Tanany, M. |
| Department/Lab Affiliations: | Electrical and Computer Engineering Wireless Communications Lab |
| Keywords: | RLS algorithm adaptive antenna arrays adaptive array beamforming adaptive beamformers array signal processing coherent interference suppression computational complexity computational complexity computer simulation convergence of numerical methods decorrelation decorrelation property fast convergence interference suppression least mean squares methods linear antenna array linear antenna arrays multiple coherent interferers normalized LMS algorithm radiofrequency interference smoothing methods space domain spatial affine projection algorithm spatial smoothing algorithm subtractive preprocessor |
| Issue Date: | 2000 |
| Publisher: | Institute of Electrical and Electronics Engineers |
| Citation: | Zheng, Y.R.; Goubran, R.A.; El-Tanany, M., "Coherent interference su pp.ession with an adaptive array using spatial affine projection algorithm," Vehicular Technology Conference, 2000. IEEE VTS-Fall VTC 2000. 52nd , vol.1, no. pp.105-109 vol.1, 2000 |
| Abstract: | This paper proposes a new algorithm, namely the spatial affine projection (SAP) algorithm, for adaptive array beamforming in the presence of multiple coherent interferers. The SAP algorithm applies the affine projection (AP) algorithm to adaptive beamformers in the space domain. Combining the decorrelation property of the AP algorithm with that of the spatial smoothing (SS) algorithm, the SAP algorithm achieves coherent interference suppression and fast convergence simultaneously. Computer simulation shows that the SAP algorithm incorporating a subtractive preprocessor (SP) outperforms the existing algorithms by placing deeper nulls and converging faster. The convergence of the SAP algorithm is comparable to that of the SS scheme using the RLS algorithm while the computational complexity of the SAP algorithm is close to that of the SS scheme using the normalized LMS algorithm |
| Type: | Article - Conference proceedings text |
| Copyright Notice: | This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. FULL COPYRIGHT INFORMATION: |
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| title | Coherent interference suppression with an adaptive array using spatial affine projection algorithm |
| contributor.author | Zheng, Y. Rosa |
| contributor.author | Goubran, R.A. |
| contributor.author | El-Tanany, M. |
| contributor.deptlab | Electrical and Computer Engineering |
| contributor.deptlab | Wireless Communications Lab |
| subject | RLS algorithm |
| subject | adaptive antenna arrays |
| subject | adaptive array beamforming |
| subject | adaptive beamformers |
| subject | array signal processing |
| subject | coherent interference suppression |
| subject | computational complexity |
| subject | computational complexity |
| subject | computer simulation |
| subject | convergence of numerical methods |
| subject | decorrelation |
| subject | decorrelation property |
| subject | fast convergence |
| subject | interference suppression |
| subject | least mean squares methods |
| subject | linear antenna array |
| subject | linear antenna arrays |
| subject | multiple coherent interferers |
| subject | normalized LMS algorithm |
| subject | radiofrequency interference |
| subject | smoothing methods |
| subject | space domain |
| subject | spatial affine projection algorithm |
| subject | spatial smoothing algorithm |
| subject | subtractive preprocessor |
| date.issued | 2000 |
| date.submitted | 2007 |
| publisher | Institute of Electrical and Electronics Engineers |
| identifier.citation | Zheng, Y.R.; Goubran, R.A.; El-Tanany, M., "Coherent interference su pp.ession with an adaptive array using spatial affine projection algorithm," Vehicular Technology Conference, 2000. IEEE VTS-Fall VTC 2000. 52nd , vol.1, no. pp.105-109 vol.1, 2000 |
| identifier.pub.URI | |
| description.abstract | This paper proposes a new algorithm, namely the spatial affine projection (SAP) algorithm, for adaptive array beamforming in the presence of multiple coherent interferers. The SAP algorithm applies the affine projection (AP) algorithm to adaptive beamformers in the space domain. Combining the decorrelation property of the AP algorithm with that of the spatial smoothing (SS) algorithm, the SAP algorithm achieves coherent interference suppression and fast convergence simultaneously. Computer simulation shows that the SAP algorithm incorporating a subtractive preprocessor (SP) outperforms the existing algorithms by placing deeper nulls and converging faster. The convergence of the SAP algorithm is comparable to that of the SS scheme using the RLS algorithm while the computational complexity of the SAP algorithm is close to that of the SS scheme using the normalized LMS algorithm |
| type | Article - Conference proceedings |
| type.DCMIType | text |
| type.status | Final version |
| rights | This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. |
| rights.URI | |
| date.accessioned | 2007-04-05T14:09:07Z |
| date.available | 2007-04-05T14:09:06Z |
| identifier.persist.URI |