When an OFDM demodulator circuit performs the waveform equivalence of carrier signals outputted from an FFT processing circuit, the OFDM demodulator circuit extracts correction coefficients corresponding to the gain of a reception signal outputted from a tuner unit from a correction coefficient table, and phase corrections are performed in a phase correction circuit based on the extracted correction coefficients. After that, the OFDM demodulator circuit performs the waveform equivalence processing with a transmission path equivalent circuit. Thereby, even if a C/N value is deteriorated owing to the amplification of an OFDM signal, the influence on the receiving performance of a receiving apparatus can be curbed, and a receiving performance can be improved.