Research on the Interference Effects of 5G’s Key Parameters on Radio Altimeters
The 5G frequency band is extremely close to the operating frequency band of radio altimeters (RAs), so an in-depth study of the possible interference of 5G’s key parameters on RAs is especially necessary to ensure aviation safety. In this paper, the interference magnitude of 5G waveforms on an altim...
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MDPI AG
2024-12-01
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| Series: | Aerospace |
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| Online Access: | https://www.mdpi.com/2226-4310/12/1/16 |
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| author | Jie Bai Shun Yuan Zhaobin Duan |
| author_facet | Jie Bai Shun Yuan Zhaobin Duan |
| author_sort | Jie Bai |
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| description | The 5G frequency band is extremely close to the operating frequency band of radio altimeters (RAs), so an in-depth study of the possible interference of 5G’s key parameters on RAs is especially necessary to ensure aviation safety. In this paper, the interference magnitude of 5G waveforms on an altimeter was measured by simulating the Adjacent Channel Leakage Power Ratio (ACLR) values for different sub-carrier spacing (SCS) and channel bandwidth configurations. Furthermore, interference injection experiments on simulated 5G signals and the interference thresholds of a frequency-modulated continuous wave (FMCW) altimeter were compared to experiments on the effects of the different configurations of 5G SCSs, channel bandwidths, and center frequency points. The interference thresholds of this FMCW altimeter were found to be in the range of 1 dBm to 6 dBm and −4 dBm to 0 dBm under the interference of 5G signals at the center frequency points of 3.7 GHz and 3.9 GHz. These results provided a certain reference for the engineering judgement margin of the interference thresholds. |
| format | Article |
| id | doaj-art-65af4ba267be4d70b8f0adb7f5eda65a |
| institution | Kabale University |
| issn | 2226-4310 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Aerospace |
| spelling | doaj-art-65af4ba267be4d70b8f0adb7f5eda65a2025-01-24T13:15:27ZengMDPI AGAerospace2226-43102024-12-011211610.3390/aerospace12010016Research on the Interference Effects of 5G’s Key Parameters on Radio AltimetersJie Bai0Shun Yuan1Zhaobin Duan2College of Safety Science and Engineering, Civil Aviation University of China, Tianjin 300300, ChinaKey Laboratory of Civil Aircraft Airworthiness Technology, Tianjin 300300, ChinaCollege of Safety Science and Engineering, Civil Aviation University of China, Tianjin 300300, ChinaThe 5G frequency band is extremely close to the operating frequency band of radio altimeters (RAs), so an in-depth study of the possible interference of 5G’s key parameters on RAs is especially necessary to ensure aviation safety. In this paper, the interference magnitude of 5G waveforms on an altimeter was measured by simulating the Adjacent Channel Leakage Power Ratio (ACLR) values for different sub-carrier spacing (SCS) and channel bandwidth configurations. Furthermore, interference injection experiments on simulated 5G signals and the interference thresholds of a frequency-modulated continuous wave (FMCW) altimeter were compared to experiments on the effects of the different configurations of 5G SCSs, channel bandwidths, and center frequency points. The interference thresholds of this FMCW altimeter were found to be in the range of 1 dBm to 6 dBm and −4 dBm to 0 dBm under the interference of 5G signals at the center frequency points of 3.7 GHz and 3.9 GHz. These results provided a certain reference for the engineering judgement margin of the interference thresholds.https://www.mdpi.com/2226-4310/12/1/165G’s key parameterssub-carrier spacingchannel bandwidthcentre frequency pointradio altimeterinterference thresholds |
| spellingShingle | Jie Bai Shun Yuan Zhaobin Duan Research on the Interference Effects of 5G’s Key Parameters on Radio Altimeters Aerospace 5G’s key parameters sub-carrier spacing channel bandwidth centre frequency point radio altimeter interference thresholds |
| title | Research on the Interference Effects of 5G’s Key Parameters on Radio Altimeters |
| title_full | Research on the Interference Effects of 5G’s Key Parameters on Radio Altimeters |
| title_fullStr | Research on the Interference Effects of 5G’s Key Parameters on Radio Altimeters |
| title_full_unstemmed | Research on the Interference Effects of 5G’s Key Parameters on Radio Altimeters |
| title_short | Research on the Interference Effects of 5G’s Key Parameters on Radio Altimeters |
| title_sort | research on the interference effects of 5g s key parameters on radio altimeters |
| topic | 5G’s key parameters sub-carrier spacing channel bandwidth centre frequency point radio altimeter interference thresholds |
| url | https://www.mdpi.com/2226-4310/12/1/16 |
| work_keys_str_mv | AT jiebai researchontheinterferenceeffectsof5gskeyparametersonradioaltimeters AT shunyuan researchontheinterferenceeffectsof5gskeyparametersonradioaltimeters AT zhaobinduan researchontheinterferenceeffectsof5gskeyparametersonradioaltimeters |