We have been developing key technologies for OFDM receiver. They are clock frequency and narrow band carrier frequency synchronization technique using with guard interval signal, wide band carrier frequency synchronization, phase noise cancellation and equalization technique using with pilot carrier signal. And we have developed OFDM modem which is based on tentative specification of digital terrestrial television broadcasting in Japan. In this paper, we summarize these technologies and report results of laboratory experiment using with the modem.
