The problem of jointly equalizing a digital communication signal distorted by a linear time-invariant channel and rejecting co-channel or adjacent-channel digital interference is tackled. Owing to the presence of the interfering signal, the proposed optimum linear MMSE equalizer turns out to be periodically time-varying (LPTV). Moreover, new simple and effective blind channel identification procedures are presented, which can be applied as long as the desired and interfering signal exhibit different circularity and/or cyclo-stationarity properties. Simulation results confirm the effectiveness of the proposed techniques.
Blind LPTV joint equalization and interference suppression / Gelli, Giacinto; Verde, Francesco. - STAMPA. - 5:(2000), pp. 2753-2756. (Intervento presentato al convegno IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP'2000) tenutosi a Istanbul (Turchia) nel Giugno 2000) [10.1109/ICASSP.2000.861068].
Blind LPTV joint equalization and interference suppression
GELLI, GIACINTO;VERDE, FRANCESCO
2000
Abstract
The problem of jointly equalizing a digital communication signal distorted by a linear time-invariant channel and rejecting co-channel or adjacent-channel digital interference is tackled. Owing to the presence of the interfering signal, the proposed optimum linear MMSE equalizer turns out to be periodically time-varying (LPTV). Moreover, new simple and effective blind channel identification procedures are presented, which can be applied as long as the desired and interfering signal exhibit different circularity and/or cyclo-stationarity properties. Simulation results confirm the effectiveness of the proposed techniques.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
