| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an OFDM receiving apparatus capable of precisely detecting disturbance by a small circuit scale, and to provide a semiconductor integrated circuit and an OFDM reception method. <P>SOLUTION: The OFDM receiving apparatus comprises a conversion circuit 52 for performing Fourier transform to a reception signal from a reception section 51 for supplying a transform signal SFFT; a first interpolation circuit 53 for detecting a pilot signal SP from the transform signal SFFT and performing time interpolation to the pilot signal SP; a disturbance detection circuit 8a for performing arithmetic processing to the pilot signal SP subjected to the time interpolation and detecting the disturbance, based on the results of the arithmetic processing; a second interpolation circuit 54 for performing disturbance interpolation to the pilot signal SP, where the disturbance is detected in a frequency direction, and allowing the pilot signal SP after the disturbance interpolation to be subjected to frequency interpolation; and a demodulation circuit 6 for performing demodulation processing, based on the transform signal SFFT and the pilot signal SF subjected to frequency interpolation. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
