Title :
Comparison of Antennas Performances for COFDM DVB-T System - Application to Channel Sounding
Author :
Nivole, F. ; Brousseau, C. ; Avrillon, Stephane ; Lemur, D. ; Marie, F. ; Bertel, L.
Author_Institution :
Inst. d´Electron. et de Telecommun., Univ. Rennes 1, Rennes
Abstract :
This paper presents the sounding methods and the calculation of SNR and MER over data point constellation diagram. It gives some examples of antenna measurements and performance analysis. It is demonstrated that to get a good reception system, the antenna features can offer better performances and can improved the multi-antenna processing used today (maximum ratio combining), which use the signal to noise ratio as optimization criteria. The final antennas array chosen for vectorial channel sounding is presented. Architecture of the multi-antenna receiver and numerical signal processing are described.
Keywords :
OFDM modulation; antenna arrays; digital video broadcasting; multifrequency antennas; COFDM DVB-T system; antenna measurements; antennas array; data point constellation diagram; digital video broadcasting terrestrial system; maximum ratio combining; multiantenna processing; multiantenna receiver; numerical signal processing; performance analysis; reception system; signal to noise ratio; vectorial channel sounding; COFDM; DVB-T; channel sounding; diversity;
Conference_Titel :
Antennas and Propagation, 2007. EuCAP 2007. The Second European Conference on
Conference_Location :
Edinburgh
Print_ISBN :
978-0-86341-842-6
