- Design Principles
Communication via a satellite
begins when the satellite is positioned in the desired orbital position.
Several types of orbits are possible, each suitable for a specific
application. However, only a few types of orbits are well suited
for communication. In this chapter the basics of orbital mechanics
are reviewed. After a general treatment, emphasis is put on the
geostationary orbit because of its importance for satellite communication.
In recent years there has been a heightened interest in the use
of low and medium earth orbits. A section dealing with the issue
of most efficient coverage from a non-geostationary orbit is also
included. In addition, several useful formulae including some interesting
results on low earth orbit constellation design and useful computer
programs, are summarized in appendix B.