The limited sensitivity of present pulsar surveys and the greater frequency drift 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。
The phase detecting error caused by local oscillator frequency drift and non-synchronization of measurement signal and gate signal is eliminated and the measurement speed is improved at the same time.
该方法可以有效的消除因本振信号频率漂移及闸门信号与被测信号的非同步引起的测相误差,同时提高了测量速度。
This approach the problem of conquers phase excursion and frequency drift that anciently adopts fixed frequency filter and its frame is simple.
这种方法克服了以往采用固定频率滤波器带来的相移和频率漂移问题,而且结构简单。
It is proved that this dither controller can track the drift of dither mechanism's nature frequency, and keep the dither system work safely.
实验表明:该控制器能够跟踪抖动系统的自然频率漂移,保证抖动系统的安全工作。
It order to improving the temperature characteristic and aging drift characteristic of frequency marker, one intelligent compensating method and device is disclosed.
为了改善频标温度特性和老化漂移特性,提出一种智能补偿方法及其装置。
The time history of drift motion of mooring buoy in regular wave and wave group is calculated. The relation between drift motion and wave height or difference of frequency is discussed.
计算了规则波和波群中系泊浮筒漂移运动的时间历程,讨论了其运动与波高、频差的关系。
The nature frequency of dither mechanism will drift when temperature is changing. And this may lead to dither mechanism failure in the extreme.
在抖动偏频激光陀螺的工作过程中,抖动机构的自然频率会随温度漂移,极端情况下可能导致机构破坏。
The results of experiments have shown that the design can control well the frequency drift in optical WDM systems.
实验表明,这一方案能够控制光WDM通信系统中的载波频移。
The patterns of near field and far field are compared through experiment. Considering the fact, an experiment is made on the testing error caused by distance error and frequency drift.
考虑到实际应用,对距离标定误差和频率漂移引起的测试误差进行了实验研究。
For testing daily frequency drift of rubidium frequency standard, this paper used the method of time difference, designed daily frequency drift measuring equipment for rubidium frequency standard.
针对铷频标日频率漂移率的指标测试要求,文中采用时差法,设计了铷频标日频率漂移率测量装置。
Adopting mutually orthogonal magnetic fields, the power tuning curve is utilized for stabilizing optical frequency, the frequency difference drift of double frequency is lower greatly.
采用正交磁场由功率调谐曲线实现稳频,可使双频频差的漂移量大大降低。
This difference affects light intensity and frequency of the modes, and as a result leads to zero drift.
损耗影响激发模的光强和频率,在陀螺中损耗不同将会导致零漂。
The results of the experiment about the frequency drift and force-frequency characteristic are also given.
给出了该传感器的频漂实验和力-频特性实验结果。
The results indicate that non-detection zone of active frequency drift with feedback method is obviously less than non-detection zone of active frequency drift with fixed disturbance method.
结果表明,带反馈的主动移频式孤岛检测的检测盲区明显小于固定扰动的主动移频式孤岛检测的检测盲区。
In this paper, the relationship between the low frequency drift wave and the empirical law of anomalous transport in Tokamak the pseudo-classical diffusion is discussed.
本文讨论了低频漂移波与托卡马克中反常输运的经验规律——赝经典扩散间的关系。
This paper proposed a novel active frequency drift with feedback based on single-phase single stage PV grid-connected generation system for the complexity of the control in traditional method.
基于单相单级光伏并网发电系统,针对传统主动式频率偏移法控制的复杂性,采用了一种新颖的带反馈的主动式频率偏移法。
This paper proposed a novel active frequency drift with feedback based on single-phase single stage PV grid-connected generation system for the complexity of the control in traditional method.
基于单相单级光伏并网发电系统,针对传统主动式频率偏移法控制的复杂性,采用了一种新颖的带反馈的主动式频率偏移法。
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