CHANNEL ESTIMATOR

摘要

There is provided a channel estimator for a receiver in a communication system, the channel estimator comprising an input for receiving signals that have been transmitted over a transmission channel; processing means for determining an initial estimate of the channel impulse response of the transmission channel from the received signals, the determined initial estimate comprising a plurality of taps; and determining a further estimate of the transmission channel from the initial estimate; wherein the processing means is configured to apply a weighting to a subset of the plurality of taps from the initial estimate in determining the further estimate, the value of the weighting being determined according to a quality of the received signals.