Advanced Satellite communications

Description

This course starts by recaping some of the essential satellite knowledge required and proceeds to explore the deeper aspects of satellite communications, including hardware, communications and error control coding.

What will you learn

Satellite communications training course details

Anyone working with satellite systems.

None.

3 days

GEO, MEO and LEO satellites. Launching and
orbits. Frequency bands and polarisation. Satellite
footprints. Multibeam coverage. Power spectra.
Link budgets. Modulation and coding. Access
technologies. Earth station components. Space
segment components. Satellite system services.
Satellite operators.

Electromagnetic waves principles and generation.
Reception of the EM wave. Space wave, sky wave
and surface wave theory. The isotropic radiator.
Types of antennae and their basic properties.
Polar diagrams. International frequency allocation.
Spectrum management and utilisation. Radio
wave propagation. Line of sight propagation.
Propagation for satellite comms. Free space path
loss. Path attenuation. Noise and Interference.
Power and its measurement.

Power flux density. Effective aperture. Horn
antennae. Parabolic reflector. Offset feed.
Cassegrain and Gregorian antennae. Antenna
feed systems - Horn, TMC, OMJ and polarizer.
Antenna steering and mount systems. Array
antennae. LNA, LNB, LNC. Microwave tubes -
TWT and Klystron. Polarizers.

Earth station antennae. Transponders. Antennae
sub systems. Power supplies. Link budgets.
System noise. System losses. Interference.
Satellite switching.

Baseband signals. Analogue and Digital systems.
Overview of modulation - AM, FM, PM. Digital
Modulation. Frequency conversion -up and down
conversion. Filters, mixers, local oscillators, IF
amplifiers and group delay equalisers. Access
methods - single and multiple access systems.
Data networks. Television transmission -
analogue and digital. Digital signal compression.
MPEG processing.

Longitude, latitude, altitude, GPS, How GPS
works, timing, alternatives to GPS.

Voice and Phones, BGAN, TV, GPS to program
aerial, VSAT.

The need for coding. Linear block codes. Cyclic
codes. Convolution codes. Interleaving and
concatenated codes. Coding gain. Turbo codes.

Theory and practice of Spectrum Analysers.