| 摘要 |
A digital radio communication system in the form of a multi-direction time division multiplex network including a central station having one working transmitter and receiver and one standby transmitter and receiver. Both the working and standby transmitters and receivers have a radio line terminating equipment, and each transmitter and receiver have a first phase shifting circuit for adjusting a phase of a transmission signal and a second phase shifting circuit for adjusting a phase of a sampling clock signal. A signal propagation delay time of the working transmitter and receiver is adjusted by the first phase shifting circuit to become equal to that of the standby transmitter and receiver, then, the phase of a sampling clock signal is adjusted between both second phase shifting circuits to be at a central position of bit width of a reception signal, and a plurality of substations are included, each operatively connected to the central station by time-divided digital radio signal, and each at least having a clock phase shifting circuit for adjusting a phase of a transmission signal transmitted from itself.
|
