| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an OFDM receiving device having an improved receiving performance in addition to an improved noise elimination performance, capable of performing SP signal interpolation by coping with a delay wave having a long delay time in an SP signal interpolation filter in a multipath state. <P>SOLUTION: The OFDM receiving device includes: a filter 9 for band-limiting a transmission estimation signal in a frequency direction, using a plurality of filter characteristics; using the output from the filter, an equalizer 7 for equalizing a received signal; a quality detector 122 for detecting the receiving quality of the equalizer output; and using the detected receiving quality, a decision unit 12 for deciding an optimal filter characteristic from the plurality of filter characteristics. The plurality of filter characteristics includes a filter characteristic having a prescribed bandwidth and a plurality of filter characteristics passing a portion in the prescribed bandwidth. The plurality of filter characteristics passing the portion include two passbands or more. <P>COPYRIGHT: (C)2012,JPO&INPIT |
