Accession Number : AD0905033

Title :   Exact Ray-Calculation Analysis of Oblique Ionograms.

Descriptive Note : Technical rept. no. 37,

Corporate Author : ILLINOIS UNIV AT URBANA RADIO RESEARCH LAB

Personal Author(s) : Rao, N. Narayana

Report Date : SEP 1972

Pagination or Media Count : 40

Abstract : A method is developed for the analysis of oblique ionograms, i.e., group path versus wave frequency data for a fixed ground range. The method is based on the use of an ionosphere model which permits the exact computation of ray path parameters subject to the assumptions of spherically symmetric ionosphere concentric with the earth and neglect of earth's magnetic field. The method is tested by applying it to a synthetic oblique ionogram for a single layer quasi-linear ionosphere. Results of analysis of the synthetic ionogram are in excellent agreement with the originally assumed parameters of the single layer quasi-linear ionosphere. (Author)

Descriptors :   *WAVE PROPAGATION), (*ATMOSPHERE MODELS, (*IONOSPHERIC PROPAGATION, MATHEMATICAL MODELS), IONOSPHERE, COMPUTER PROGRAMS, APPROXIMATION(MATHEMATICS), ATMOSPHERIC SOUNDING, AZIMUTH, FREQUENCY.

Subject Categories : Atmospheric Physics
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE