Estimating, in a rake receiver (rake) of the rate of change of the channel

摘要

An apparatus for receiving a signal, the apparatus comprising: a generator (527) of channel estimates, the generator (527) of decanal estimates being configured to generate a series of channel estimates; characterized in that the apparatus further comprises: an estimator (610) the Doppler frequency estimator (610) Dopplerpara often use two or more channel estimates in order to generate an estimate of the Doppler frequency, wherein the estimator (610) of the Doppler frequency comprises being configured normalizer (620), being configuradoel normalizer (620) for normalizing at least two channel estimates.