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Path Loss Analysis Considering Atmospheric Refractivity and Precipitation for Air-to-Ground Radar

Authors
Wang, S.S.Choo, H.Lim, T.H.
Issue Date
Oct-2021
Publisher
Institute of Electrical and Electronics Engineers Inc.
Keywords
Atmospheric modeling; Attenuation; correlation analysis; long range air-to-ground propagation; Mathematical model; Meteorology; path loss; precipitation; Propagation; Propagation losses; Refractive index; Refractivity
Citation
IEEE Antennas and Wireless Propagation Letters, v.20, no.10, pp.1968 - 1972
Journal Title
IEEE Antennas and Wireless Propagation Letters
Volume
20
Number
10
Start Page
1968
End Page
1972
URI
https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/16232
DOI
10.1109/LAWP.2021.3101251
ISSN
1536-1225
Abstract
This paper reports a correlation analysis of path loss considering atmospheric refractivity and precipitation in an air-to-ground radar application. For the path loss estimation, the refractivity and rainfall attenuation models are derived using actual atmospheric data. The path loss along the range and altitude is obtained using parabolic equation software tool (PETOOL). The digital terrain elevation data (DTED) of the Suwon-Osan area, the radar antenna beam pattern, and environmental models are employed in the PETOOL. Then, we expand the path loss calculation in an azimuthal scan to observe the illuminated field intensity on the ground for a synthetic aperture radar (SAR) application. The results confirm that the illuminated field intensity for SAR applications is closely related to refractivity and precipitation. IEEE
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