| 摘要 |
PROBLEM TO BE SOLVED: To generate reference frequency signals in phase with the generation timing of absolute time of satellite wave, by providing a means imperatively synchronizing the output phase of an output frequency fout in absolute time of GPS time signal S1PPS. SOLUTION: The device is provided with a frequency converter A17b having a means receiving a reset pulse 51 from a phase reset controller 50 and resetting the output phase of the frequency converter A17b frequency-dividing an oscillation frequency of a voltage control oscillator 10 into a specific frequency ratio to the initial phase. The phase reset controller 50 receives the GPS time signal S1PPS in 1 second unit as an absolute reference timing and counts the time to be 1 hour, for example and resets the output phase of the frequency converter A17b in phase with the GPS time signal S1PPS after 1 hour elapsing to initial state. As the results, the phase of the output frequency fout is imperatively synchronized with the absolute time of satellite wave. |
