| 摘要 |
<p>PURPOSE:To provide a radio receiver for easily and surely correcting phase shift by correcting the phase shift of reception data based on the result of comparing second phase shift information detected in a state where the phase of the reception data is shifted with normal phase shift information. CONSTITUTION:A phase correction circuit 24 outputs the maximum value of correlation value detected results to a central processing unit 15 and the unit 15 stores the maximum value of the correlation values in a prescribed register as a first correlation value detected result Cy. Successively, the unit 15 outputs control data to the phase correction circuit 24, makes the frequency of the reception data Xi variable and detects second and third correlation values Cx and Cy. Then, the phase correction circuit 24 detects the correlation values Cx and Cz at the time of turning the reception data Xi to the phase delayed and advanced by a frequency DELTAf. Thus, the phase shift information of the phase shift of the reception data in the respective frequencies is detected and the correlation value detected result is outputted to the unit 15.</p> |
