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Introduction to Digital Modulation Paul Sutton 5 th March 2014 ICTP School on Applications of Open Spectrum and White Spaces Technologies
Introduction to Digital Modulation
Paul Sutton
5th March 2014
ICTP School on Applications of Open Spectrum
and White Spaces Technologies
Message signal
Carrier signal
Modulated signal
Message signal
Modulated signal
Message signal
Modulated signal
Message signal
Modulated signal
+
=
OQPSK
OQPSK
OQPSK
MSK
MSK
MSK
GMSK
GMSK
16-QAM
16-QAM
16-QAM
16-QAM
Time
Frequency
Single-Carrier Systems
Time
Frequency
Single-Carrier Systems
Time
Frequency
Single-Carrier Systems
Multipath Propogation
Time
Frequency
Time
Frequency
Narrowband Interference
Time
Frequency
Time
Frequency
Frequency
Single-Carrier System
Multi-Carrier System
Frequency Division Multiplexing (FDM)
Frequency
Frequency
Frequency
Orthogonal Frequency Division Multiplexing
Fast Fourier Transform
Thanks for your attentionThanks for your attention
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