Ionospheric tomography for the study of relative X‐ and O‐mode power over low‐ and mid‐latitude ionosphere. Issue 5 (11th March 2019)

• Record Type: Journal Article
• Authors: Nandi, Sandip; Bandyopadhyay, Bijoy; Khatua, Soumen
• Is Part Of: IET microwaves, antennas & propagation. Volume 13:Issue 5(2019)
• Page Start: 615
• Page End: 622
• Publication Date: 2019-03-11
• Subjects: ionospheric electromagnetic wave propagation -- ionospheric techniques -- total electron content (atmosphere); tomographic reconstruction method -- O‐mode power distribution -- LEO satellites -- low‐ latitude regions -- mid‐latitude regions -- Southern Hemisphere -- Ionex TEC data -- direct measurement TEC data -- West Bengal -- high frequency waves -- ionospheric tomography technique -- relative absorption -- ionospheric effects -- mid‐latitude ionosphere -- LEO satellite signals -- low‐latitude ionosphere -- X‐mode power distribution -- X‐mode only band -- O‐mode only band -- magnetoionic theory; Microwaves -- Periodicals; Microwave antennas -- Periodicals; Antennas (Electronics) -- Periodicals; Radio wave propagation -- Periodicals; Microwave communication systems -- Periodicals; 621.381305
• DOI: 10.1049/iet-map.2018.5533
• Languages: English
• ISSNs: 1751-8725

Abstract

Abstract : Realising the importance of the ionospheric effects on low Earth orbit (LEO) satellite signals, tomographic reconstruction method has been applied to study the relative X‐ and O‐mode power distribution at an altitude of LEO satellites over the low‐ and mid‐latitude regions of the Earth. Eight regions of the ionosphere in Northern and Southern Hemisphere have been reconstructed tomographically based on the Ionex TEC data and direct measurement TEC data over West Bengal, India and subsequently ray tracing of very high frequency waves has been performed. Then, based on the magnetoionic theory, the relative X‐mode power distribution has been investigated. Evaluation of the results and observations related to the existence of X‐mode only band and narrow O‐mode only band ensures the possibility of application of ionospheric tomography technique for study of relative absorption in the ionosphere. The outcome of this research will greatly assists the researchers to interpret the ionospheric effects on radio waves.