The paper presents a new method for measuring the most common I/Q impairments affecting WiMAX transmitters, that are gain imbalance and quadrature error. The method operates on the signal at the output of the transmitter, acquired through a general purpose I/Q receiver. It is designed to correctly take into account the peculiarities of systems compliant to the standard IEEE 802.16-2004, such as the potentially noxious effects of impairments on signal normalization. The results of experiments carried out on standard-compliant signals are also given.
Measuring Gain Imbalance and Quadrature Error in WiMAX Transmitters / Angrisani, Leopoldo; A., Napolitano; M., Vadursi. - ELETTRONICO. - (2008), pp. 1577-1581. (Intervento presentato al convegno IEEE IMTC/08 tenutosi a Victoria (Canada) nel 2008-May) [10.1109/IMTC.2008.4547294].
Measuring Gain Imbalance and Quadrature Error in WiMAX Transmitters
ANGRISANI, LEOPOLDO;
2008
Abstract
The paper presents a new method for measuring the most common I/Q impairments affecting WiMAX transmitters, that are gain imbalance and quadrature error. The method operates on the signal at the output of the transmitter, acquired through a general purpose I/Q receiver. It is designed to correctly take into account the peculiarities of systems compliant to the standard IEEE 802.16-2004, such as the potentially noxious effects of impairments on signal normalization. The results of experiments carried out on standard-compliant signals are also given.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
