Impact Analysis of Orthogonal Circular-Polarized Interference on GNSS Spatial Anti-Jamming Array
With the continuous advancement of electromagnetic countermeasures, new types of interference signals (e.g., multi-polarization suppression interference) pose a significant threat to conventional Global Navigation Satellite System (GNSS) services, even when the receiver employs a right-handed circul...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-12-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/16/23/4506 |
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| author | Ke Zhang Xiangjun Li Lei Chen Zengjun Liu Yuchen Xie |
| author_facet | Ke Zhang Xiangjun Li Lei Chen Zengjun Liu Yuchen Xie |
| author_sort | Ke Zhang |
| collection | DOAJ |
| description | With the continuous advancement of electromagnetic countermeasures, new types of interference signals (e.g., multi-polarization suppression interference) pose a significant threat to conventional Global Navigation Satellite System (GNSS) services, even when the receiver employs a right-handed circularly polarized (RHCP) anti-jamming array. This paper proposes a receiving signal model for orthogonal circularly polarized (OCP) interference signals based on conventional arrays, following an analysis of the non-ideal characteristics of actual arrays. Furthermore, the mechanism by which OCP interference signals affect anti-jamming performance is examined. Power inversion (PI) and linear constrained minimum variance (LCMV) techniques, applied to both uniform linear arrays and central circular arrays, are utilized to verify the impact of these interference signals. Simulation and physical testing demonstrate that OCP interference significantly affects the interference subspace of the conventional RHCP array, potentially leading to a reduction in the anti-jamming performance of the receiver. To effectively suppress multi-polarization interference, anti-jamming GNSS receivers must either ensure the consistency of cross-polarization among the elements of the array or adopt polarization-sensitive arrays. |
| format | Article |
| id | doaj-art-4713f28c6e064346a69eef7a9e76380d |
| institution | Kabale University |
| issn | 2072-4292 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj-art-4713f28c6e064346a69eef7a9e76380d2024-12-13T16:31:05ZengMDPI AGRemote Sensing2072-42922024-12-011623450610.3390/rs16234506Impact Analysis of Orthogonal Circular-Polarized Interference on GNSS Spatial Anti-Jamming ArrayKe Zhang0Xiangjun Li1Lei Chen2Zengjun Liu3Yuchen Xie4College of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, ChinaCollege of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, ChinaCollege of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, ChinaCollege of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, ChinaCollege of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, ChinaWith the continuous advancement of electromagnetic countermeasures, new types of interference signals (e.g., multi-polarization suppression interference) pose a significant threat to conventional Global Navigation Satellite System (GNSS) services, even when the receiver employs a right-handed circularly polarized (RHCP) anti-jamming array. This paper proposes a receiving signal model for orthogonal circularly polarized (OCP) interference signals based on conventional arrays, following an analysis of the non-ideal characteristics of actual arrays. Furthermore, the mechanism by which OCP interference signals affect anti-jamming performance is examined. Power inversion (PI) and linear constrained minimum variance (LCMV) techniques, applied to both uniform linear arrays and central circular arrays, are utilized to verify the impact of these interference signals. Simulation and physical testing demonstrate that OCP interference significantly affects the interference subspace of the conventional RHCP array, potentially leading to a reduction in the anti-jamming performance of the receiver. To effectively suppress multi-polarization interference, anti-jamming GNSS receivers must either ensure the consistency of cross-polarization among the elements of the array or adopt polarization-sensitive arrays.https://www.mdpi.com/2072-4292/16/23/4506GNSSanti-jammingorthogonal polarized interferencecross-polarization |
| spellingShingle | Ke Zhang Xiangjun Li Lei Chen Zengjun Liu Yuchen Xie Impact Analysis of Orthogonal Circular-Polarized Interference on GNSS Spatial Anti-Jamming Array Remote Sensing GNSS anti-jamming orthogonal polarized interference cross-polarization |
| title | Impact Analysis of Orthogonal Circular-Polarized Interference on GNSS Spatial Anti-Jamming Array |
| title_full | Impact Analysis of Orthogonal Circular-Polarized Interference on GNSS Spatial Anti-Jamming Array |
| title_fullStr | Impact Analysis of Orthogonal Circular-Polarized Interference on GNSS Spatial Anti-Jamming Array |
| title_full_unstemmed | Impact Analysis of Orthogonal Circular-Polarized Interference on GNSS Spatial Anti-Jamming Array |
| title_short | Impact Analysis of Orthogonal Circular-Polarized Interference on GNSS Spatial Anti-Jamming Array |
| title_sort | impact analysis of orthogonal circular polarized interference on gnss spatial anti jamming array |
| topic | GNSS anti-jamming orthogonal polarized interference cross-polarization |
| url | https://www.mdpi.com/2072-4292/16/23/4506 |
| work_keys_str_mv | AT kezhang impactanalysisoforthogonalcircularpolarizedinterferenceongnssspatialantijammingarray AT xiangjunli impactanalysisoforthogonalcircularpolarizedinterferenceongnssspatialantijammingarray AT leichen impactanalysisoforthogonalcircularpolarizedinterferenceongnssspatialantijammingarray AT zengjunliu impactanalysisoforthogonalcircularpolarizedinterferenceongnssspatialantijammingarray AT yuchenxie impactanalysisoforthogonalcircularpolarizedinterferenceongnssspatialantijammingarray |