1. Single-carrier digital modulations (PSK, QAM )
1.1 General principles
In order to transport information from one point to another, a high-frequency sinusoidal carrier wave (also known as "radio frequency" (RF) (figure 2 ) is used. This wave is characterized by its amplitude A, its pulsation ω 0 (with ω 0 = 2 πf 0 ) and its instantaneous phase :
ω 0 t + j 0
with j 0 phase at origin.
It is written :
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Single-carrier digital modulations (PSK, QAM )
Characteristics of the "radiomobile" channel
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Bibliography
- (1) - STOTT (J.H.) - The how and why of COFDM. - EBU Technical Review, Winter (1998) http://www.tech.ebu.ch/docs/techreview/trev_278-stott.pdf
- (2)...
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