| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a wireless receiver whereby high speed phase shift correction for I and Q signals can be expected and a simplified circuit configuration and suppressed power consumption can be realized. <P>SOLUTION: A phase correction amount/correction direction determining section 40 determines a corrected amount and a direction of a corrected phase as to the correction of the phase shift of the I, Q signals by using digital symbol value in a baseband signal processing section 2 and a value obtained from a demapper 35 capable of discriminating an error amount and outputs a select signal to a correction processing section 18 on the basis of a result of the determination. The correction processing section 18 receives a digital signal resulting from applying double over-sampling to digitized I, Q signals by an I signal processing digital filter 17a and a Q signal processing digital filter 17b and corrects a phase shift of the I, Q signals on the basis of the select signal. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
