Anisotropic Non-Kolmogorov Turbulence Spectrum with Anisotropic Tilt Angle
With the in-depth study of atmospheric turbulence, scholars have identified that the anisotropy of turbulence cells should not be forgotten. The anisotropic non-Kolmogorov turbulence model can better characterize the actual situation of atmospheric turbulence. However, the results of recent experime...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-11-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/8/11/521 |
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| author | Chao Zhai |
| author_facet | Chao Zhai |
| author_sort | Chao Zhai |
| collection | DOAJ |
| description | With the in-depth study of atmospheric turbulence, scholars have identified that the anisotropy of turbulence cells should not be forgotten. The anisotropic non-Kolmogorov turbulence model can better characterize the actual situation of atmospheric turbulence. However, the results of recent experiments by Wang et al. and Beason et al. demonstrate that the turbulence cell has an anisotropic tilt angle, i.e., the long axis of turbulence cell may not be horizontal to the ground but has a certain angle with the ground. In this paper, we derive the anisotropic non-Kolmogorov turbulence spectra for the horizontal and satellite links with anisotropic tilt angle. Then by use of these spectra, the analytical expressions of scintillation index in the horizontal and satellite links are derived for the weak fluctuation condition. The calculation results display that the scintillation index for the horizontal and satellite links vary with the changes of anisotropic tilt angle and azimuth angle. Therefore, the anisotropic tilt angle is indispensable in the horizontal and satellite links. |
| first_indexed | 2024-03-10T05:08:27Z |
| format | Article |
| id | doaj.art-b6e270c95c0148c98f81232c065f7253 |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-03-10T05:08:27Z |
| publishDate | 2021-11-01 |
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| series | Photonics |
| spelling | doaj.art-b6e270c95c0148c98f81232c065f72532023-11-23T01:02:00ZengMDPI AGPhotonics2304-67322021-11-0181152110.3390/photonics8110521Anisotropic Non-Kolmogorov Turbulence Spectrum with Anisotropic Tilt AngleChao Zhai0School of Computer and Communication Engineering, Northeastern University at Qinhuangdao, Qinhuangdao 066004, ChinaWith the in-depth study of atmospheric turbulence, scholars have identified that the anisotropy of turbulence cells should not be forgotten. The anisotropic non-Kolmogorov turbulence model can better characterize the actual situation of atmospheric turbulence. However, the results of recent experiments by Wang et al. and Beason et al. demonstrate that the turbulence cell has an anisotropic tilt angle, i.e., the long axis of turbulence cell may not be horizontal to the ground but has a certain angle with the ground. In this paper, we derive the anisotropic non-Kolmogorov turbulence spectra for the horizontal and satellite links with anisotropic tilt angle. Then by use of these spectra, the analytical expressions of scintillation index in the horizontal and satellite links are derived for the weak fluctuation condition. The calculation results display that the scintillation index for the horizontal and satellite links vary with the changes of anisotropic tilt angle and azimuth angle. Therefore, the anisotropic tilt angle is indispensable in the horizontal and satellite links.https://www.mdpi.com/2304-6732/8/11/521atmospheric opticsatmospheric propagationanisotropic non-Kolmogorov turbulenceanisotropic tilt angle |
| spellingShingle | Chao Zhai Anisotropic Non-Kolmogorov Turbulence Spectrum with Anisotropic Tilt Angle Photonics atmospheric optics atmospheric propagation anisotropic non-Kolmogorov turbulence anisotropic tilt angle |
| title | Anisotropic Non-Kolmogorov Turbulence Spectrum with Anisotropic Tilt Angle |
| title_full | Anisotropic Non-Kolmogorov Turbulence Spectrum with Anisotropic Tilt Angle |
| title_fullStr | Anisotropic Non-Kolmogorov Turbulence Spectrum with Anisotropic Tilt Angle |
| title_full_unstemmed | Anisotropic Non-Kolmogorov Turbulence Spectrum with Anisotropic Tilt Angle |
| title_short | Anisotropic Non-Kolmogorov Turbulence Spectrum with Anisotropic Tilt Angle |
| title_sort | anisotropic non kolmogorov turbulence spectrum with anisotropic tilt angle |
| topic | atmospheric optics atmospheric propagation anisotropic non-Kolmogorov turbulence anisotropic tilt angle |
| url | https://www.mdpi.com/2304-6732/8/11/521 |
| work_keys_str_mv | AT chaozhai anisotropicnonkolmogorovturbulencespectrumwithanisotropictiltangle |