| 摘要 |
The invention discloses a double-estimation channel estimator for calculating a plurality of accurate channel responses from a plurality of synchronization signals, comprising a first channel estimator, for calculating a plurality of first channel responses at all time points over all sub-channels according to a plurality of pilot signals and the synchronization signals; a first equalizer, for calculating a plurality of first equalization signals at all the time points over all the sub-channels according to the first channel responses and the synchronization signals; a second channel estimator, for calculating a plurality of second responses at all the time points over all the sub-channels according to the first equalization signals and the synchronization signals; and a calculation module, for calculating a plurality of third channel responses at all the time points over all the sub-channels according to the first channel responses and the second channel responses.
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