| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a reception device having excellent followability to time variation under a radio wave environment, and capable of effectively suppressing an interference wave even when the interference wave exists over a wide range of a reception channel. <P>SOLUTION: A reception device 1 includes: a data accumulation unit 11 that temporarily stores a discrete signal generated from a frequency division multiplex signal R(t); a subtraction unit 12 that subtracts an interference wave signal from the discrete signal as an output of the data accumulation unit 11; a signal selection unit 13 that selects either one of an output of the data accumulation unit 11 and an output of the subtraction unit 12; a Fourier transform unit 14 that performs a discrete Fourier transform of an output of the signal selection unit 13; an equalization processing unit 15 that equalizes an output of the Fourier transform unit 14; an interference wave estimation unit 17 that estimates a frequency domain interference wave component on the basis of the output of the Fourier transform unit 14 and an output of the equalization processing unit 15; and an inverse Fourier transform unit 18 that generates the interference wave signal by performing an inverse discrete Fourier transform of the frequency domain interference wave component. <P>COPYRIGHT: (C)2013,JPO&INPIT |
