Title :
Modulator imperfections and I/Q errors influence on the DVB-T signal
Author :
Tom? Kratochv?l;V?clav ??n?;Martin Slanina
Author_Institution :
Department of Radio Electronics, Brno University of Technology, Purky?ova 118, 612 00 Brno, Czech Republic
fDate :
4/1/2010 12:00:00 AM
Abstract :
This paper deals with the modulator imperfections and I/Q errors influence on the DVB-T signal and its spectrum and I/Q constellation analysis. Theoretical backgrounds of the Amplitude Imbalance, Phase Error and Carrier Suppression effects are summarized in the paper. Then the practical results measured in the laboratory environment are compared with the theoretical assumed impacts on Modulation Error Rate from the I/Q constellation and Bit Error Rates before and after Viterbi decoding in DVB-T signal decoding.
Keywords :
"Digital video broadcasting","Decoding","Viterbi algorithm","Bit error rate","Artificial intelligence","Amplitude modulation","Interference","Constellation diagram","Signal analysis","Q measurement"
Conference_Titel :
Radioelektronika (RADIOELEKTRONIKA), 2010 20th International Conference
Print_ISBN :
978-1-4244-6318-3
DOI :
10.1109/RADIOELEK.2010.5478592
