| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an OFDM receiver which can improve the accuracy of transmission path estimation. <P>SOLUTION: An OFDM receiver includes means 2 for converting a received signal into a signal of a frequency axis, means 3 for interpolating a pilot carrier and estimating a first transmission path characteristic, means 4 for calculating a first equalization signal, means 5 for determining the first equalization signal, means 6 for estimating a second transmission path characteristic, means 7 for calculating a complex impulse response of the transmission path from the second transmission path characteristic, means 8 for searching the complex impulse response for a path and multiplying a window function to the path by the complex impulse response, means 9 for converting a multiplication result into the signal of the frequency axis and acquiring a third transmission path characteristic, means 10 for calculating a second equalization signal, means 11 for selecting either the first equalization signal or the second equalization signal, and means 12 for determining the selected signal. <P>COPYRIGHT: (C)2012,JPO&INPIT |
