Accession Number : AD0735866

Title :   The Potential of the U.S. Navy Navigation Satellite System in the Prediction of Ionospheric Characteristics for High Frequency Sky Wave Tele-communications.

Descriptive Note : Technical memo.,

Corporate Author : JOHNS HOPKINS UNIV SILVER SPRING MD APPLIED PHYSICS LAB

Personal Author(s) : Pisacane,V. L. ; Feen,M. M.

Report Date : AUG 1971

Pagination or Media Count : 28

Abstract : The paper discusses the potential of the Navy Navigation Satellite System in predicting the optimum transmitting parameters in high frequency sky wave telecommunications. First, the operational navigational system, which consists of spacecraft, tracking stations, a computational center and a broad spectrum of user equipment, is discussed. Next, the propagation effects of the ionosphere on the satellite radio-doppler observations are considered. Then, the various invasive and non-invasive options of utilization of the navigation system in obtaining ionospheric data are given. (Author)

Descriptors :   (*IONOSPHERIC PROPAGATION, PREDICTIONS), (*NAVIGATION SATELLITES, RADIO RELAY SYSTEMS), HIGH FREQUENCY, ATMOSPHERIC REFRACTION, IONOSPHERE, DOPPLER SYSTEMS

Subject Categories : Radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE