The Influence of PE Initial Field Construction Method on Radio Wave Propagation Loss and Tropospheric Duct Inversion
Parabolic equations (PE) are commonly employed for calculating the spatial propagation loss of wireless signals. The initial field is a crucial factor. To investigate the impact of construction accuracy on the calculation of radio wave propagation loss, we selected the half-wave dipole antenna and i...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-12-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/15/1/46 |
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| author | Run-Sheng Cheng Cheng-Guo Liu Li-Feng Cao Tong Xiao Guang-Pu Tang Li-Feng Huang Hong-Guang Wang |
| author_facet | Run-Sheng Cheng Cheng-Guo Liu Li-Feng Cao Tong Xiao Guang-Pu Tang Li-Feng Huang Hong-Guang Wang |
| author_sort | Run-Sheng Cheng |
| collection | DOAJ |
| description | Parabolic equations (PE) are commonly employed for calculating the spatial propagation loss of wireless signals. The initial field is a crucial factor. To investigate the impact of construction accuracy on the calculation of radio wave propagation loss, we selected the half-wave dipole antenna and its Gaussian approximation to examine the influence of wide-angle PE modeling. We analyzed the disparities between the actual antenna pattern and the Gaussian beam approximation, as well as the discrepancies in the corresponding initial field and the calculation of radio wave propagation loss in PE modeling. The simulation results indicate that the error of the Gaussian approximation increases as the angle of departure from the antenna main beam increases, with a relative error of approximately 30% in the initial field. A comparison between the experimental test of the broadcast signal and the simulation calculation reveals that the model based on the actual antenna aligns more closely with the measured value on a flat underlying surface. However, in mountainous areas with significant fluctuations, the simulation results are consistent with each other and higher than the measured value. The inversion results obtained through the particle swarm optimization algorithm demonstrate that the model based on the actual antenna exhibits superior inversion accuracy for the tropospheric atmospheric duct structure. |
| first_indexed | 2024-03-08T11:06:14Z |
| format | Article |
| id | doaj.art-4aa7f30bb11147e9a42c2efd69b15407 |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-08T11:06:14Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-4aa7f30bb11147e9a42c2efd69b154072024-01-26T15:01:49ZengMDPI AGAtmosphere2073-44332023-12-011514610.3390/atmos15010046The Influence of PE Initial Field Construction Method on Radio Wave Propagation Loss and Tropospheric Duct InversionRun-Sheng Cheng0Cheng-Guo Liu1Li-Feng Cao2Tong Xiao3Guang-Pu Tang4Li-Feng Huang5Hong-Guang Wang6Hubei Engineering Research Center of RF-Microwave Technology and Application, Wuhan 430070, ChinaHubei Engineering Research Center of RF-Microwave Technology and Application, Wuhan 430070, ChinaHubei Engineering Research Center of RF-Microwave Technology and Application, Wuhan 430070, ChinaHubei Engineering Research Center of RF-Microwave Technology and Application, Wuhan 430070, ChinaHubei Engineering Research Center of RF-Microwave Technology and Application, Wuhan 430070, ChinaSchool of Information Engineering, Wuhan University of Technology, Wuhan 430070, ChinaChina Institute of Radio Wave Propagation, Qingdao 266000, ChinaParabolic equations (PE) are commonly employed for calculating the spatial propagation loss of wireless signals. The initial field is a crucial factor. To investigate the impact of construction accuracy on the calculation of radio wave propagation loss, we selected the half-wave dipole antenna and its Gaussian approximation to examine the influence of wide-angle PE modeling. We analyzed the disparities between the actual antenna pattern and the Gaussian beam approximation, as well as the discrepancies in the corresponding initial field and the calculation of radio wave propagation loss in PE modeling. The simulation results indicate that the error of the Gaussian approximation increases as the angle of departure from the antenna main beam increases, with a relative error of approximately 30% in the initial field. A comparison between the experimental test of the broadcast signal and the simulation calculation reveals that the model based on the actual antenna aligns more closely with the measured value on a flat underlying surface. However, in mountainous areas with significant fluctuations, the simulation results are consistent with each other and higher than the measured value. The inversion results obtained through the particle swarm optimization algorithm demonstrate that the model based on the actual antenna exhibits superior inversion accuracy for the tropospheric atmospheric duct structure.https://www.mdpi.com/2073-4433/15/1/46radio wave propagationparabolic equationthe initial fieldbroadcast signaltropospheric duct inversion |
| spellingShingle | Run-Sheng Cheng Cheng-Guo Liu Li-Feng Cao Tong Xiao Guang-Pu Tang Li-Feng Huang Hong-Guang Wang The Influence of PE Initial Field Construction Method on Radio Wave Propagation Loss and Tropospheric Duct Inversion Atmosphere radio wave propagation parabolic equation the initial field broadcast signal tropospheric duct inversion |
| title | The Influence of PE Initial Field Construction Method on Radio Wave Propagation Loss and Tropospheric Duct Inversion |
| title_full | The Influence of PE Initial Field Construction Method on Radio Wave Propagation Loss and Tropospheric Duct Inversion |
| title_fullStr | The Influence of PE Initial Field Construction Method on Radio Wave Propagation Loss and Tropospheric Duct Inversion |
| title_full_unstemmed | The Influence of PE Initial Field Construction Method on Radio Wave Propagation Loss and Tropospheric Duct Inversion |
| title_short | The Influence of PE Initial Field Construction Method on Radio Wave Propagation Loss and Tropospheric Duct Inversion |
| title_sort | influence of pe initial field construction method on radio wave propagation loss and tropospheric duct inversion |
| topic | radio wave propagation parabolic equation the initial field broadcast signal tropospheric duct inversion |
| url | https://www.mdpi.com/2073-4433/15/1/46 |
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