Transmission system with improved signal conditioning means

摘要

In a transmission system a signal is transmitted by a primary station to a secondary station via a transmission medium. The secondary station comprises a tunable receiver for tuning to a signal received from the transmission medium. The receiver also comprises a signal conditioning unit such as an equalizer with a channel estimation unit for determining at least one property of the transmission channel. The determined property is used for setting the signal conditioning unit at a later instant. This instant can be at the change of frequency where the setting for the signal conditioning unit for the new frequency are calculated from the determined property. The property can be stored for later use when the receiver returns to the previous frequency. The determined property can be used for determining the setting of another signal conditioning unit which comprises a pre-equalizer used with transmitter in the secondary station.