The limited sensitivity of present pulsar surveys and the greater frequencydrift make the more distant pulsars difficult to observe.
目前脉冲星普查的有限探测灵敏度和大的频率漂移,使我们难以观测到更遥远的脉冲星。
2
The phase detecting error caused by local oscillator frequencydrift and non-synchronization of measurement signal and gate signal is eliminated and the measurement speed is improved at the same time.