| 摘要 |
PURPOSE:To reproduce exact impulse even in the case of transmitting data concerning the MODEM for modulating/demodulating transmitted/received data. CONSTITUTION:At a MODEM 1A for reproducing data by modulating the data at a modulating means 2 and demodulating received signals at a demodulating means 3A, the demodulating means 3A is provided with a demodulation processing means 4, roll-off filter means 5, reception level adjusting means 6, equalization processing means 7, correcting signal generating means 8 for removing carrier frequency offset composed of a phase difference information arithmetic means and normalization processing means, multiplying means 9 and sum component operation processing means 10. |
