Compression, focusing, and inversion of frequency-modulated radio pulses in catastrophe-type space-time domains

被引：0
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作者：
Ipatov, E.B.
Kryukovskii, A.S.
Lukin, D.S.
Rastyagaev, D.V.
Chistyakov, D.N.
机构：
来源：
Radiotekhnika i Elektronika | 2001年 / 46卷 / 07期
关键词：
Electromagnetic dispersion - Focusing - Numerical analysis - Plasmas - Three dimensional - Time domain analysis;
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摘要：
Radio-pulse structure is numerically simulated in regions of the simultaneous space-time focusing in plasma described by corank-3 catastrophes. Three-dimensional catastrophes with separable space and time components are considered. Conditions under which such focusings occur are analyzed. A radio pulse envelope at the geometric center of the space focusing is studied. A physical interpretation of the amplitude oscillations, of the growth of the signal in the one-ray region, and of the dependence of the amplitude on multiplicity of the singularity is given. Wave effects associated with the inversion and compression of frequency-modulated pulses as they travel in plasma through focusing regions described by three-dimensional catastrophes are studied.
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页码：816 / 825
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