论文信息 - Reflection and Transmission in the Ionosphere Considering Collisions in a First Approximation

Reflection and Transmission in the Ionosphere Considering Collisions in a First Approximation

istheratiobetweentheelectroncollisionfrequencyandthewavefrequency. RandTheightproﬁles were assessed using the International Reference Ionosphere,IRI, to estimate the ionosphere plasma parameters. Although nosigniﬁcant diﬀerences are found between the estimation with andwithout collisions, the method employed to include collisions may beusefulforotherpurposeswherecollisionsshouldbetakenintoaccount.1. INTRODUCTIONReﬂectionandtransmissionareimportantphenomenainthestudyofradiowave propagationintheionosphere[1,2],especiallyinthecaseof vertical sounding. The reﬂection and transmission coeﬃcients, Rand T respectively, are assessed from the refractive index, which isobtained from Maxwell’s equation. Assuming a plane wave solution,

A. Yesil | A. Elias | M. Aydoǧdu

[1] A. Yesil,et al. The group refractive indices of HF waves in the ionosphere and departure from the magnitude without collisions , 2004 .

[2] D. Y. Zhang. A new method of calculating the transmission and reflection coefficients and fields in a magnetized plasma layer , 1991 .

[3] B. Lundborg,et al. Standing wave pattern of HF radio waves in the ionospheric reflection region , 1986 .

[4] T. Hagfors. Electromagnetic wave propagation in a field-aligned-striated cold magnetoplasma with application to the ionosphere , 1984 .

[5] Y. Al’pert. The direction of the group velocity of electromagnetic waves in a multicomponent magneto-active plasma in the frequency range 0 < ω → ∞ , 1980 .

[6] K. Nagashima,et al. The magneto-ionic theory and its applications to the ionosphere: by J. A. Ratcliffe. 206 pages, diagrams, 834 × 534 in. New York, Cambridge University Press, 1959. Price, $7.50 , 1959 .

[7] J. Ratcliffe. The Magneto Ionic Theory and its Applications to the Ionosphere: A Monograph , 1959 .

[8] K. G. Budden. The propagation of radio waves , 1985 .