Parametric Analysis of Jammed Active Satellite Links

This paper is a parametric study of active satellite repeater communications links in a jamming environment. Under heavy jamming conditions with an earth coverage satellite antenna, the communication effectiveness of the link is presented as a oneparameter family of curves. A crucial parameter which is a figure of merit of the link is
PD^{2}/T
, where
P
is the power radiated by the active satellite repeater,
D
is the diameter of the receiving dish and
T
is the receiving system noise temperature. Jamming-limited and thermal noise-limited conditions are identified and their implications are discussed.