PROBLEM TO BE SOLVED: To suppress reception performance degradation due to noise increase at waveform equalization.SOLUTION: A waveform equalizer 3 for an OFDM modulation signal includes: a delay/amplitude detector 33 for detecting amplitude of a delay wave and a delay time of the delay wave to a main wave in an OFDM modulation signal, containing the main wave and the delay wave to the main wave, from an input signal BS; a delay equalization filter 31 for outputting an equalized signal in which the delay wave is eliminated from the input signal, according to a detection result of the delay/amplitude detector 33; and a coefficient generator 34 for generating an output signal ES of the waveform equalizer which mixes the input signal and the equalized signal according to a preset mixture ratio, and setting the mixture ratio so as to have the amplitude of the delay wave, in the output signal of the waveform equalizer, to be suppressed equal to or less than a preset guard interval mask value, according to a detect
