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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| Soggetti: | |
| Accesso online: | https://arxiv.org/abs/2409.14958 |
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| _version_ | 1866910755133063168 |
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| author | Grundmann, Lukas Gerlach, Marc Schäfer, Wolfgang Manteuffel, Dirk |
| author_facet | Grundmann, Lukas Gerlach, Marc Schäfer, Wolfgang Manteuffel, Dirk |
| contents | A multimode multiport antenna (M$^3$PA), constisting of a single conducting structure, is proposed for use with the airborne collision avoidance system (ACAS). Its cupola-shaped surface is selected from a set of aerodynamically suitable and symmetric structures. The selection is based on a presented statistical evaluation procedure for direction-finding (DF) antennas and algorithms, which predicts the root mean square error (RMSE) of the estimation using characteristic modes (CMs). A demonstrator antenna and feed network is manufactured and its three ports are measured in an anechoic chamber. The results match the intended far-fields of an electric monopole and two magnetic dipoles. The presented flight test results show that the antenna is capable of unambiguous DF across the desired angular range in a real world environment. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_14958 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | A Cupola-Shaped Multimode Multiport Antenna for Aerial Direction Finding Grundmann, Lukas Gerlach, Marc Schäfer, Wolfgang Manteuffel, Dirk Signal Processing A multimode multiport antenna (M$^3$PA), constisting of a single conducting structure, is proposed for use with the airborne collision avoidance system (ACAS). Its cupola-shaped surface is selected from a set of aerodynamically suitable and symmetric structures. The selection is based on a presented statistical evaluation procedure for direction-finding (DF) antennas and algorithms, which predicts the root mean square error (RMSE) of the estimation using characteristic modes (CMs). A demonstrator antenna and feed network is manufactured and its three ports are measured in an anechoic chamber. The results match the intended far-fields of an electric monopole and two magnetic dipoles. The presented flight test results show that the antenna is capable of unambiguous DF across the desired angular range in a real world environment. |
| title | A Cupola-Shaped Multimode Multiport Antenna for Aerial Direction Finding |
| topic | Signal Processing |
| url | https://arxiv.org/abs/2409.14958 |