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Aerospace; Satellites

Aerospace; Satellites

Unwanted electrical interference from signals that are immediately adjacent in frequency to the desired signal. This can arise due to imperfections in the transmission channel and/or equipment.

Aerospace; Satellites

The process of optimising the orientation of a satellite antenna's main direction of sensitivity towards the satellite to maximise the received signal level and to minimise the chance of receiving ...

Aerospace; Satellites

A receiving antenna collects noise from radiating bodies falling within its radiation pattern. For an on-ground receiving antenna, this includes contributions from the sky and from the surroundings ...

Aerospace; Satellites

The amount of time that the quality of a telecommunication service or communications link equals or exceeds a specified minimum value. For satellite communication links the availability is usually ...

Aerospace; Satellites

A unidirectional flow of radio waves concentrated in a particular direction. A term commonly used to refer to an antenna's radiation pattern by analogy with a light beam. It is most often used to ...

Aerospace; Satellites

The direction of maximum antenna gain. For a receiving antenna, the boresight is aligned with the satellite as accurately as possible for maximum received signal strength.