Computer Science – Sound
Scientific paper
Oct 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983ge%26ae..23..865a&link_type=abstract
Geomagnetizm i Aeronomiia (ISSN 0016-7940), vol. 23, Sept.-Oct. 1983, p. 865-867. In Russian.
Computer Science
Sound
Ionospheric Propagation, Ionospheric Sounding, Radio Reception, Short Wave Radio Transmission, Trajectory Analysis, Transmission Loss, Computerized Simulation, Cross Correlation, Doppler Effect, Obliqueness, Permittivity
Scientific paper
Quantitative estimates are obtained for the moments of trajectory parameters of ionospheric radio waves on an oblique-sounding path; numerical calculations are made using the Afanas'ev-Tinin formulas (1982). The rms deviation of the azimuthal arrival angle of the radio waves is determined as a function of the initial radiation angle at a critical frequency of 9 MHz, an operating frequency of 25 MHz, a layer maximum height of 300 km, and a layer semithickness of 100 km. In addition, calculations are made of coefficients of cross correlation between the azimuthal and vertical arrival angles of short-wave signals, as well as between the Doppler shift of signals and arrival angles in the azimuthal and elevation-angle planes.
Afanasev N. T.
Salomatova A. P.
Tinin M. V.
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