Brief description of the demodulation, 1984, of a signal received by the selection of a filter and respect to the communication, 1984, including

摘要

The device (10) of a digital demodulation comprises a polyphase filter (14) comprising a set of n distinct elementary digital filters (h.sub.i) and means (16) of the selection, for each block of a digital filter element (h i ). These latter comprise means (28) of calculation of an error signal, means (30) of the comparison of performance indicators of the digital filters from the error signals, and means (30) for the determination of the digital filter element (h.sub.i) to be used for the next block as a function of the result of the comparaison.les digital filters (h i) are ordered. They are chosen depending on the order of the filters, as a function of the result of the comparison carried out on the performance indicators of the digital filters elements (h i) used for at least one block antérieur.application to a mobile telephone or a base station.