铷钟
- rubidium clock
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由于铷钟的漂移非常缓慢,基于自适应低通滤波器,设计了一种导航算法用于铷钟约束的GPS。
Since the Rubidium clock drifts very slowly , an alternative navigation algorithm was designed for Rubidium clock constrained GPS using the adaptive low-pass filter .
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这对于进一步了解铷钟的漂移规律及其物理机制和考虑改善产品质量有一些参考价值。
It may be for reference valuable to further understanding the regularity of the drift of rubidium clock and its physical mechanism , and to improving the quality of products as well .
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基于新校频算法的GPS可驯铷钟系统研究
Study on GPS Disciplined Rb Clock Based on New Frequency Accuracy Measurement Algorithm
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在GPS可驯铷钟系统中,校频是驯频的前提。
Frequency accuracy measurement is the basis of frequency disciplined in GPS disciplined Rb clock system .
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为了进一步改善GPS导航的精度和可用性,研究和建立了一个由铷钟辅助GPS和气压计、罗经组成的组合导航系统。
To further improve GPS navigation availability , the integration of rubidium clock aided GPS with a baremeter and a gyro is investigated .
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该方法将GPS作为频率基准,间接得到了铷钟相对于与GPS的频差,避免了使用昂贵的高分辨计数器。
In the method , GPS is looked on as reference and the frequency difference between the Rb clock and GPS may be obtained indirectly , and the expensive high-resolution counter may not be needed .
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为解决我国目前对自主无源三维导航资源的急需,近年来提出了铷钟法、伪卫星法及Loran-C增强法等多种增强方案。
In order to solve the contradiction between the lack of passive 3-D navigation resource controlled by our country and the urgent need for the system , in these years , the rubidium clock method , pseudolite method and Loran-C method are developed as augmentation schemes based on Double-Star .
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一种高分辨率频率合成器在铷钟电路中的应用
The Applications of High Resolution Fractional-N Frequency Synthesizer in Rubidium Clock Circuit
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振动与PO1型铷钟频率变化的实验
Effect of Shock and Vibration on Frequency of POl - Type Rubidium clock
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自适应驯服铷钟的实现
The Implementation of an Adaptive and Tame Rubidium Clock
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介绍了一种基于铷钟的双星系统用户终端机&连续导航无源双星定位系统。
This paper introduces a user terminal equipment for the double-satellite positioning system .
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一种用于激光抽运铷钟的高介电陶瓷微波腔设计
A design of high dielectric ceramic microwave cavity used in laser-pumped rubidium atomic clock
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一种基于铷钟的双星系统用户终端机
A User Terminal Equipment Based on Rubidium Atomic Clock for the Double-Satellite Positioning System
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上海光机所小喷泉铷钟的设计和进展
Design and Progress of the Compact Rubidium Atomic Fountain Clock of SIOM , CAS
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卫星铷钟自动控温系统仿真平台的设计与实现
Design and Realization of Simulator for Satellite Ru Atomic Clock Temperature Auto Control System
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本文叙述了利用电视同步脉冲讯号对我台铷钟进行时间同步工作的结果;
In this paper , the results of time synchronism with TV are discussed .
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光频移是影响铷钟长期稳定度的主要因素之一。
Light shift is one of the main factors that influence the long term stability of rubidium frequency standards .
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该小喷泉铷钟吸收了原子喷泉的许多新技术,采用紧凑的结构设计,加入空心光束以提高探测原子数。
Many new techniques are applied to the compact Rubidium atomic fountain clock and a compact structure is adopted .
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该系统用高稳定度铷钟作为时间基准信号,实现了无源导航定位功能。
Rubidium atomic clock is used for the time reference signal in the system , by which the user can get the positioning information without sending any signal .
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当卫星几何位置好的情况下,铷钟用于改善垂直精度,顺便还较正气压计的精度。
When the satellite geometry is good , the rubidium clock is used to improve vertical accuracy , and in turn , the calibration accuracy of the barometer .
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通常采用晶体振荡器或者铷钟作为频率标准,但它们由于老化和噪声等原因导致其长期稳定度不尽人意,这就需要用更高精度的频率标准来校准它们。
The frequency standards of crystal oscillator or rubidium are commonly used as frequency source , but their long-term stability is generally unsatisfactory due to aging and environmental causes .
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本文主要介绍了氢钟、铷钟、铯钟等几种主要原子频标的物理工作原理、性能、工作与应用领域与研究进展;
The article mainly discusses the physical principle , performance , working and application fields and recent research devel - opment of several main atom frequency standards such as Hydrogen , Rubidium , Cesium atom clock , etc.
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计算结果表明,卫星内部一些关键磁敏感部件,例如铷钟、行波管等处磁场值较大,尤其是铷钟位置影响更大一些。
The results show that the magnetic field value of some sensitive components , such as Rb meter and Travelling wave tube , are bigger than others , especially for Rb meter , which its position is influential .
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铷钟可以用来预测接收机的时钟偏差,通过对时钟偏差估计的改善就可以提高定位的精度,特别是可以改善垂直精度。
Since the Rubidium clock makes it possible to predict the receiver clock offset , positioning accuracy could be enhanced through an improvement in clock offset estimation , and Rubidium clock aiding will definitely improve the vertical accuracy .
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当可见星的数目降为2个时,稳定的铷钟和精确校正过的气压计可提供令人满意的时钟偏差和高度信息的测量值,从而保证了导航定位的质量。
When the number of visible satellites falls to two , the stable rubidium clock and the more accurately calibrated barometer will provide the good measurements of clock offset and height information , and navigation quality can still be maintained .
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通常时统设备中都采用晶体振荡器或者铷钟作为频率标准,但由于老化和温度等原因导致其短期准确度和长期稳定度不尽如人意。
Usually , a crystal oscillator or rubidium is used in the Time Unit System equipments as a clock frequency standard , but its drawbacks of long-term stability do not satisfy applications because of its aging or some other reasons .
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介绍了时统设备中驯服铷钟的工作原理和硬件的具体实现电路,以及单片机的嵌入式软件设计方法和数据处理方法。
This paper introduces the operational principles of the tame rubidium clock in a timing equipment and the specific implemented circuits of the hardware . It also discusses the design method of an embedded software for the single chip processor and the method of data processing .
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三状态时钟模型kalman滤波器在GPS驯服铷原子钟中的应用
Kalman filter with three-state clock model applied in GPS disciplining rubidium clock
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浅谈温度对星载铷原子钟长期稳定性的影响
An easy discuss about temperature 's long stability of space rubidium clock
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铷原子钟长期老化特性的观测与研究
Measurement and research about the characteristic of Rubidium Atomic Clock 's long-term aging