A method for estimating a frequency offset and automatic frequency control for a filtered signal having a destroyed phase information, as well as transmit - / receiver

摘要

A method for estimating the frequency offset for a filtered signal having a destroyed phase information, in which a filter, a source signal (x) in correspondence to a series of first filter coefficients (w_Ia, W_Ib) filters, in order to a first channel - component (y_I) the filtered signal (y), and the source signal (x) in correspondence to a series of second filter coefficients (w_Q) filters, in order to provide a second channel - component (y_Q) the filtered signal to be obtained, comprising the steps of:The discharge of a series of third filter coefficients (– w_Ib, W_Ia) from the first filter coefficients;Filter of the origin signal (x, x_Q) in correspondence to the third filter coefficients, in order to provide a reference signal (y_Q'') to obtain;Estimating a first frequency shift - value (δf_It) in correspondence to the first channel - component of the filtered signal and the reference signal.