Patent ID: 6931085

Claim:
A process for correcting a resampler ( 6 ) with which a sampled input signal (S D ), which is subjected to an input sampling rate (f A ) and which has one of symbol and chip frequencies (f C ) that deviates from the input sampling rate (f A ), is converted to a sampled output signal (S C ), for which an output sampling rate corresponds with the one of the symbol and chip frequencies by changing the input sampling rate (f A ) by a resampling factor (resamp_fac), the process including the following process steps: performing ( 8 ) a non-linear operation on the input signal (S D ), so that a spectral line ( 15 ) arises at the one of the symbol and chip frequencies; spectrally shifting ( 9 ) the input signal (S D ) by the one of the symbol and chip frequencies (f C ); determining ( 11 ) the phase (φ) of the shifted spectral line ( 15 ) at the one of the symbol and chip frequencies (f C ) as a function of the sample time points; and correcting one of the resampling factor (resamp_fac) and a time shift of the output signal (S C ) by a time correction value (resamp_offset) based on a regression of the phase (φ) of the shifted spectral line ( 15 ) at the one of the symbol and chip frequencies (f C ) as a function of the sample time points.