ASYMMETRIC SPECTRAL BROADENING OF MODULATED ELECTROSTATIC ION-CYCLOTRON WAVES

被引：22
|
作者：
KOEPKE, ME
ALPORT, MJ
SHERIDAN, TE
AMATUCCI, WE
CARROLL, JJ
机构：
[1] Department of Physics, West Virginia University, Morgantown, West Virginia
来源：
GEOPHYSICAL RESEARCH LETTERS | 1994年 / 21卷 / 11期
关键词：
D O I：
10.1029/94GL00175
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
Modulated, current-driven, electrostatic ion-cyclotron (CDEIC) waves are shown to exhibit amplitude and frequency modulation, spectral broadening, and time-averaged frequency pulling. The observed spectral broadening is asymmetric and sensitively dependent on the driving frequency. Qualitative features of the experimental data are reproduced by the forced van der Pol equation and are explainable using processes associated with driven self oscillations. These results may be relevant to ionospheric modification experiments involving the controlled modulation of the natural electrojet.
引用
收藏
页码：1011 / 1014
页数：4
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