A satellite communications system provides an information channel between remotely
located transmitters and receivers. A virtual satellite system provides the same
service, but divides the signal either in power or in data content into subchannels
such that any particular signal is conducted to the intended receiver via a plurality
of traditional satellite channels. The receiving terminal accepts the plurality
of signals simultaneously from a possible plurality of satellites, combining the
subchannels comprising the virtual channel into the original signal content as
if conducted via a single channel. The receiving antenna system receives satellite
subchannel signals from a plurality of directions using multiple antennas or a
single antenna with multi-direction capability. Prior to signal combining, the
receiver necessarily time-synchronizes the plurality of subchannels by introducing
time delay in some channels before combining the subsignals into the original composite.
A timing signal present in the virtual satellite system assists the receiver in
determining the amount of delay to apply to each incoming signal. The timing signal
is either a separate carrier or an additional modulation on the existing information-bearing carrier.