| 摘要 |
<p>A satellite communications system comprising at least one satellite (4) in orbit about the Earth, and being for receiving a user uplink signal from a user terminal (2) adjacent the Earth, in the presence of co-channel interference from at least one interference source (121) adjacent the Earth, further comprising means for interference mitigation, characterised by said means being arranged to utilise position data related to the spatial separation, relative to the satellite or satellites (4), of the user terminal (2) and the or each said interference source (121) adjacent the Earth, and to spatially filter the content of said user uplink signal in dependence upon said position data to improve the ratio of said signal to said co-channel interference. <IMAGE></p> |
