A measure of inhomogeneity in satellite systems using the geostationary orbit
Abstract
Inhomogeneity occurs from differences in the technical and operational characteristics between satellite systems. There are two basic factors governing inhomogeneity between satellite systems, existing or planned for operation in the near future. The first factor results from relative differences between satellite systems in their potential for causing interference to other systems, whereas the second factor results from differences between satellite systems in their relative sensitivity to interference; both factors must be considered when attempting to assess inhomogeneity. In this paper, the two factors governing inhomogeneity are separated into uplink and downlink components, thereby resulting in four inhomogeneity factors: uplink interference potential, downlink interference potential, uplink interference sensitivity, and downlink interference sensitivity. The inhomogeneity factors for existing and planned-for satellite systems are calculated. Also discussed are impact on orbit spacing and spacing between identical systems, with emphasis on a calculating nomogram and Delta-T criteria.
- Publication:
-
International Conference on Communications, Volume 3
- Pub Date:
- 1977
- Bibcode:
- 1977icc.....3R..49P
- Keywords:
-
- Communication Satellites;
- Data Links;
- Electromagnetic Compatibility;
- Synchronous Satellites;
- Antenna Radiation Patterns;
- Inhomogeneity;
- Intelsat Satellites;
- Satellite Design;
- Satellite Networks;
- Stationary Orbits;
- Thermal Noise;
- Communications and Radar