| 摘要 |
<p>PURPOSE:To prevent the deterioration of the efficiency of data transfer, and to shorten a time when reception synchronization can be established without especially increasing a device scale and a signal processing scale. CONSTITUTION:In a transmission station, the output of a convolving encoding circuit 12 is encoded through two systems, A path system 17 and B path system 18 (transmission serial conversion systems), transmitted through a P/S conversion circuit 13, multiplexer 14, and local oscillator 15, and an IF signal is outputted, in BPSK modulating circuit. In a receiving station, the data of the received channel are serial/parallel converted and Viterbi-decoded according to the transmission serial conversion system of the channel to be received by its own station, the channel desired by its own station is identified from the adjacent channel, and whether or not the channel is the channel desired by its own station is judged at the preceding state of frame synchronization.</p> |
