| 摘要 |
<P>PROBLEM TO BE SOLVED: To avoid deterioration of reception performance. <P>SOLUTION: In a frequency interpolation circuit 8-3 and a frequency interpolation circuit 21-3, interpolation of transmission line characteristics estimated by a time direction transmission line characteristics estimation circuit 8-2 is performed using an interpolation filter of a filter bandwidth selected by a control circuit 21-2, respectively. In a division circuit 8-4, a signal after transmission line distortion compensation is generated using an interpolation result by a frequency interpolation circuit 8-3, and in a division circuit 21-4, a signal after transmission line distortion compensation is generated using an interpolation result by a frequency interpolation circuit 21-3. Qualities of the signals after the two transmission line distortion compensation are detected in a signal quality detection circuit 21-5, and the signal after the transmission line distortion compensation with better quality is selected by a selection circuit 21-1. The invention is applicable to an OFDM receiver. <P>COPYRIGHT: (C)2010,JPO&INPIT |
