English

DTIC ADA239823: Conference Proceedings on Ionospheric Modification and Its Potential to Enhance or Degrade the Performance of Military Systems Held in Bergen, Norway on 28-31 May 1990 (La Modification de l'Ionosphere et son Potentiel d'Amel

The propagation medium is, in effect, an integral part of many military systems. For the most part, interest in the propagation medium has been focused on identifying and quantifying the limitations it imposes on systems, rather than on ways it might be altered, or controlled. The results of on-going theoretical and experimental research show potential for modifying selected regions of the ionosphere in order to affect radio wave propagation. A variety of modification techniques are being investigated, both ground- and space-based, to increase or decrease existing ionization or to create independent artificial plasmas. These techniques include high power radio waves, lasers, particle beams, and chemical releases. In addition, recent developments in high power RF sources raise concerns over system limitations due to self induced anomalous absorption, ray path deviation and clutter. These proceedings present the current state of ionospheric modification technology, with emphasis on potential applications for enhancing or degrading the performance of military communications, surveillance and navigation systems.

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