Article | REF: TE6143 V1

Digital radio - OFDM modulation

Authors: Jean-Noël GOUYET, Sylvie KALINOWSKI

Publication date: August 10, 2013

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4. COFDM emission system

4.1 COFDM transmitter

It is integrated into a single circuit with three main functions (figure 36 ):

  • channel coding, with error-correcting code and interleaving ;

  • OFDM modulation ;

  • frequency transposition and amplification.

Example of a COFDM transmitter synoptic (in the DAB system)
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COFDM emission system