Satellite communications training course 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
Explain how satellite communications work.
Explain how RF works
Explain the architecture of satellite systems.
Use spectrum analysers.
Satellite communications training course details
Who will benefit:
Anyone working with satellite systems.
Prerequisites:
None.
Duration
3 days
Satellite communications training course contents
Basic Principles of Satellite Communications
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.
Radio frequency propagation
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.
Satellite antennae and other hardware
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 and Space Segments and the link
Earth station antennae. Transponders. Antennae
sub systems. Power supplies. Link budgets.
System noise. System losses. Interference.
Satellite switching.
Ground Communications Equipment
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.
Satellite Navigation
Longitude, latitude, altitude, GPS, How GPS
works, timing, alternatives to GPS.
Mobile satellite services
Voice and Phones, BGAN, TV, GPS to program
aerial, VSAT.
Error Control Coding
The need for coding. Linear block codes. Cyclic
codes. Convolution codes. Interleaving and
concatenated codes. Coding gain. Turbo codes.
Test and measurement
Theory and practice of Spectrum Analysers.