Satellites

Satellites

Of or relating to any man-made object launched to orbit Earth or another celestial body.

Industry: Aerospace

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Satellites

Phase-locked loop (PLL)

Aerospace; Satellites

A type of electronic circuit used to demodulate satellite signals.

Packet switching

Aerospace; Satellites

Data transmission method that divides messages into standard-sized packets for greater efficiency of routing and transport through a network.

Pulse code modulation

Aerospace; Satellites

A time division modulation technique in which analogue signals are sampled and quantized at periodic intervals into digital signals. The values observed are typically represented by a coded ...

Polarisation rotator

Aerospace; Satellites

A device that can be manually or automatically adjusted to select one of two orthogonal polarizations.

A technique used by the satellite designer to increase the capacity of the satellite transmission channels by reusing the satellite transponder frequencies. In linear cross polarisation schemes, half ...

Polar mount

Aerospace; Satellites

Antenna mechanism permitting steering in both elevation and azimuth through rotation about a single axis. While an astronomer's polar mount has its axis parallel to that of the earth, satellite earth ...

Router

Aerospace; Satellites

Network layer device that determines the optimal path along which network traffic should be forwarded. Routers forward packets from one network to another based on network layer information.