SPATIAL POWER SPECTRUM OF MULTIPLE SCATTERED ORDINARY AND EXTRAORDINARY WAVES IN MAGNETIZED PLASMA WITH ELECTRON DENSITY FLUCTUATIONS

被引:6
|
作者
Jandieri, G. V. [1 ]
Ishimaru, A. [2 ]
Mchedlishvili, N. F. [3 ]
Takidze, I. G. [3 ]
机构
[1] Georgian Tech Univ, 77 Kostava Str, Tbilisi 0175, Georgia
[2] Univ Washington, Dept Elect Engn, Seattle, WA 98195 USA
[3] Georgian Tech Univ, Dept Phys, Tbilisi 0175, Georgia
关键词
D O I
10.2528/PIERM12053102
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Features of the spatial power spectrum (SPS) of multiple scattered ordinary and extraordinary waves in randomly inhomogeneous magnetized plasma are investigated using the smooth perturbation method taking into account diffraction effects. Second order statistical moments are derived for arbitrary correlation function of electron density fluctuations at oblique illumination of magnetized plasma by mono-directed incident radiation. Numerical calculations have been carried out for anisotropic Gaussian correlation function taking into account anisotropy factor and angle of inclination of prolate irregularities with respect to the external magnetic field. It was shown that SPS has a double-peaked shape. External magnetic field narrows SPS for ordinary wave and the gap arises in the direction of prolate irregularities. For extraordinary wave the gap increases with a distance passing by the wave in anisotropic magnetized plasma, the width broadens and maximum slightly displaced.
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页码:87 / 100
页数:14
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