Accession Number : ADD016436

Title :   Method and System for Inferring the Radio Refractive Index Structure of the Atmosphere from Radio Measurements.

Descriptive Note : Patent, Filed 24 Sep 92, patented 5 Jul 94,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Hitney, Herbert V

Report Date : 05 Jul 1994

Pagination or Media Count : 6

Abstract : A system and method are provided for determining in real time, the radio refractive index structure of the atmosphere. The method may be characterized as comprising the steps of transmitting a radio frequency signal over a predetermined path; receiving the radio frequency signal; detecting the strength of the radio frequency signal; determining a radio propagation factor from the strength of the radio frequency signal; determining a base height function of the atmosphere; and employing the radio propagation factor in the base height function to determine a trapping layer base height of the atmosphere which represents the radio refractive index structure of the atmosphere

Descriptors :   *ATMOSPHERIC REFRACTION, *PATENTS, *RADIO SIGNALS, *REFRACTIVE INDEX, ATMOSPHERES, FREQUENCY, HEIGHT, LAYERS, PATHS, PROPAGATION, RADIO EQUIPMENT, REAL TIME, TIME, RADIOFREQUENCY, RADIO TRANSMISSION

Subject Categories : Radio Communications
      Optics
      Atmospheric Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE