| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a signal processing circuit in which spurious can be reduced by identifying the frequency position of spurious accurately. <P>SOLUTION: The signal processing circuit includes an FFT section performing FFT of a received OFDM signal, a propagation path estimation section determining a propagation path estimation value on the basis of a pilot signal in the received data output from the FFT section, a propagation path compensation section compensating the propagation path for the received data output from the FFT section, a spurious frequency detection section detecting the frequency position of spurious on the basis of an error vector when the error vector obtained based on the data signal point in the received data output from the propagation path compensation section has not saturated, otherwise on the basis of the propagation path estimation value, and a spurious reduction section reducing the frequency components of the received signal at the frequency position of spurious detected by the spurious frequency detection section. <P>COPYRIGHT: (C)2013,JPO&INPIT |
