| 摘要 |
A transmission system for pulse signals of fixed clock frequency with regenerative repeaters located in the transmission path, each being provided with a pulse regenerator and a clock extraction circuit recovering the clock frequency for the control of the pulse regenerator from the received pulse signals with the aid of a frequency selective circuit. The use of a special type of frequency selective circuit results, especially in transmission systems having a large number of regenerative repeaters, in a considerable reduction of the phase jitter of the recovered clock signal in the receiver without detrimentally influencing the acquisition of the clock frequency in the individual regenerative repeaters. |
