Digital audio broadcasting receiver

A digital audio broadcasting receiver comprising:

• a delay circuit for delaying a received digital audio broadcasting signal by a prescribed period;
• a correlation circuit for taking correlation between a delayed output of the delay circuit and the received digital audio broadcasting signal and producing a correlation output;
• a moving average circuit for moving-averaging the correlation output of the correlation circuit over a width that is equal to a guard period and producing a moving average output;
• a peak detection circuit for detecting a position in time of a peak of the moving average output of the moving average circuit and producing a peak detection output;
• a calculation circuit for calculating a first error in a reception frequency based on a phase deviation in the received digital audio broadcasting signal at the position in time that is indicated by the peak detection output of the peak detection circuit and producing a calculation output;
• a fast Fourier transform circuit for subjecting the received digital audio broadcasting signal to fast Fourier transform processing and producing a fast Fourier transform output;
• and
• a detection circuit for determining a reception center frequency based on the fast Fourier transform output of the fast Fourier transform circuit and producing a detection output,
• wherein the first error in the reception frequency is corrected by controlling a local oscillation frequency based on the calculation output of the calculation circuit;
• and
• a second error in the reception frequency is corrected by performing carrier shifting based on the detection output of the detection circuit.