Digital audio broadcasting receiver

摘要: A DAB (Digital Audio Broadcasting) receiver includes a delay circuit for delaying received signal by prescribed period, correlation taking between delayed output of the and signal, moving average moving-averaging over width that is equal to guard peak detection detecting position in time circuit, calculation calculating an error reception frequency based on phase deviation at indicated FFT (Fast Fourier Transform) subjecting processing, determining center circuit. The corrected controlling local oscillation An performing carrier shifting As result, necessary tuning can be shortened.