| 摘要 |
<p>The present invention relates to a time axis interpolator and one embodiment of the present invention includes: at least one memory in which a plurality of pilot signals used for interpolation operation in an OFDM frame are stored; a memory control unit for controlling writing and reading operation of the pilot signal with respect to the address of the memory calculated by carrier location information of the plurality of pilot signals; a pilot order rearrangement unit for rearranging and outputting the plurality of pilot signals read from the memory control unit using memory location information for the at least one memory with respect to a reference carrier for the interpolation operation applied from the memory control unit and pilot arrangement information in the time axis in the OFDM frame and pilot arrange information in the frequency axis; an interpolation coefficient judgment unit for selecting and outputting the weighting factor for the plurality of pilot signals using the pilot arrangement information in the time axis applied from the memory control unit and the pilot arrangement information in the frequency axis; and an interpolation calculation unit for calculating data for each of the plurality of pilot signals by multiplying the weighting factor applied from the interpolation coefficient judgment unit to each of the plurality of pilot signals which an order of application from the pilot order rearrangement unit is rearranged, adding the plurality of data to the data and performing interpolation calculation. [Reference numerals] (AA) Frequency axis;(BB) Time axis;(CC) Pilot signal</p> |
