An equalizer to compensate for the changing conditions of a Channel caused by the Movement of a Mobile Communication Device in a Mobile Radio Communications disposicionde,And a method to compensate the changing conditions of the channel using the Equalizer.

摘要

An equalizer to compensate for the changing conditions of a Channel caused by the Movement of a Mobile Communications device.To velocidadesvariantes a provision of Mobile Radio Communications.The Equalizer includes a estimadorque receives a Digital Signal transmitted over a Communications Channel.The Digital Signal being adversely modified by devanecimiento during Transmission caused by the Movement of the Mobile Communications device to speed variantsAnd a Signal to estimate the Channel.Producing the Estimator as a decisionrepresentativa Response Signal of an approximation of the transmitted Digital Signal and Eliminating the devanecimiento.Provide first and Second Channel Trackers, each of them tuned to a different speed of the Mobile Communications device and each receiving itThe Signal decision.A decision Circuit receives the signal of response decision and selected as one of the trackers of the channel, the first or the second, to provide lasenal Channel estimation.The Invention also proposes a method to compensate for the changing conditions of the channel Equalizer which used the stage to receive the Digital Signal ChannelTo generate a First signal and a Second Signal estimation tuned to a respective speeds, DEMODULATION of the signals, and selecting one of the Signal Channel estimation to track.