Telecommunications and the satellite 'Intercosmos-Bulgaria-1300'
Abstract
It is shown how the data obtained by the satellite Intercosmos-Bulgaria-1300 can be used for the specification of some features of space telecommunications, in particular those involving radiosignals of meter, decimeter, and centimeter wavelengths. Part of the program of this satellite involves the determination of the maximum electron densities (and their critical frequencies) of the F region and of the heights at which they are located by the use of the combined measurement of the airglow and the local electron density. Several main parameters of global radiocommunications are determined including the circummaximum structure of the ionosphere and the maximal usable frequencies. The absorption decreases of the radiosignal as it passes through the ionosphere are determined using satellite measurements. The VHF polarization losses are obtained for the ranges used for satellite telecommunications with the specified profiles of the F region. The role of the calculated integral amount of electrons obtained through satellite measurements is examined for a pillar of 1 sq cm cross-section which can be used for an interpretation of beacon measurements.
- Publication:
-
Budapest International Astronautical Federation Congress
- Pub Date:
- October 1983
- Bibcode:
- 1983buda.iafcS....S
- Keywords:
-
- F Region;
- Intercosmos Satellites;
- Ionospheric Electron Density;
- Ionospheric Propagation;
- Maximum Usable Frequency;
- Satellite Sounding;
- Airglow;
- Critical Frequencies;
- Data Acquisition;
- Electromagnetic Absorption;
- Ionospheric Sounding;
- Radio Signals;
- Satellite Transmission;
- Telecommunication;
- Very High Frequencies;
- Space Communications, Spacecraft Communications, Command and Tracking