| 摘要 |
<p>PROBLEM TO BE SOLVED: To equalize all the modulated phasees in each carrier of an OFDM frame generated by a plurality of OFDM modulation devices arranged on a receiving side the same. SOLUTION: In the case of constructing a network in which a transmitter of a broadcasting station side transmits data to a plurality of receivers, a transmitting side calculates the differential reference phase of each carrier of the OFDM frame generated by a receiving side, arranges the differential reference phase and transmission data in a predetermined order, constructs a multiplex transmission frame and transmits the multiplex transmission frame, and the receiving side receives the multiplex transmission frame, separates the differential reference phase for each carrier, defines the differential reference phase for each carrier as the mapping value of each carrier in the front transmission symbol of the OFDM frame and calculates a mapping value with respect to the second and succeeding transmission symbols by performing the differential reference phase and differential modulation of each carrier.</p> |
