Receiver, integrated circuit, digital television receiver, reception method, and reception program

摘要

A receiver receives an OFDM signal and performs the Fourier transform on the received OFDM signal. In the receiver, a first channel estimation subunit estimates channel characteristics at SP signal positions and interpolates the estimated channel characteristics in the time direction, whereas a second channel estimation subunit estimates channel characteristics at TMCC signal positions. A correlation calculation subunit performs an autocorrelation calculation on the output from the first channel estimation subunit, and performs a cross-correlation calculation on the output from the first channel estimation subunit and the output from the second channel estimation subunit. By using the results of the autocorrelation calculation and the cross-correlation calculation performed by the correlation calculation subunit, a control subunit controls a transfer function of an interpolation filter in a frequency interpolation subunit.