| 摘要 |
<P>PROBLEM TO BE SOLVED: To correct a simple point deviation of a DFT window with a simple circuit configuration. <P>SOLUTION: A receiver that receives a signal transmitted using a multicarrier includes a DFT unit which applies a discrete Fourier transformation (hereinafter referred to as DFT) calculation to a reception signal in a time domain for converting it to a plurality of subcarrier signals in a frequency domain, and a propagation path estimation circuit which corrects a propagation path characteristic from the data signal of the plurality of subcarrier signals based on the reference vector of a pilot signal contained in the plurality of subcarrier signals. The propagation path estimation circuit includes a minimum angle information storage part which stores the minimum angle information of rotation factor in DFT calculation, a phase rotation amount calculation part which calculates a first phase rotation amount for the plurality of subcarrier signals according to the minimum angle information and the sample point deviation number of a DFT window, and a phase correction part which corrects the phase of the plurality of subcarrier signals based on the first phase rotation amount. <P>COPYRIGHT: (C)2012,JPO&INPIT |
