Generation of high intensity RF pulses in the ionosphere by means of in situ compression

S. C. Cowley, F. W. Perkins, E. J. Valeo

Research output: Contribution to journalArticlepeer-review


We demonstrate, using a simple model, that high intensity pulses can be generated, by making use of the dispersive properties of the ionosphere, from a modifier of much lower intensity whose frequency is a parabolic function of time. We show that such a frequency‐chirped pulse can be constructed so that its various components overtake each other at a prescribed height, resulting in large (up to one hundred times) transient intensity enhancements as compared to those achievable from a steady modifier operating at the same power. We examine briefly one possible application: the enhancement of plasma wave amplitudes which occurs as a result of the interaction of such a compressed pulse with pre‐generated turbulence.

Original languageEnglish (US)
Pages (from-to)2431-2434
Number of pages4
JournalGeophysical Research Letters
Issue number22
StatePublished - Nov 19 1993

All Science Journal Classification (ASJC) codes

  • Geophysics
  • General Earth and Planetary Sciences


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