| 摘要 |
PROBLEM TO BE SOLVED: To more accurately estimate a channel by segmenting an effective component of a delay profile on a time base in a received channel estimate sequence. SOLUTION: The receiver rotates a phase of a signal separated by each subcarrier by a rotation amount equivalent to a moving amount of a delay profile when executing channel estimation and thereafter convolutes a sinc function on the signal to apply weighting composite to a plurality of subcarriers adjacent to each other, and executes processing equivalent to multiplying the delay profile advanced by a desired phase rotation amount on the time base with a rectangular wave. Thus, the receiver can extract only a required delay signal and attain channel estimation with high accuracy. COPYRIGHT: (C)2007,JPO&INPIT
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