科研之友
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摘要
Supersonic vehicles are surrounded by a plasma layer which produces a cutoff layer for electromagnetic waves. Methods to remove the layer by gas releases, dc magnetic fields, and E X B flows have been proposed earlier. The present work suggests a new approach which is based on laboratory observations. Ions are expelled by a time varying magnetic field which creates a Hall electric field. The ion expulsion opens up a window of transparency for wave communications.
- 出版日期2013-3-14
