短期稳定度

在长期统计意义上GPS信号具有长期准确度和稳定度，而恒温晶振的短期稳定度较好。

In long term , the GPS signal is precise and stable , while the OCXO has good stability in short term .

多普勒测速的频率短期稳定度问题

Treatise on the problem of short term frequency stability in Doppler-velocity measurement

一个新的频率源短期稳定度的表征式&沃尔什正弦方差

A New Characterization of Short-term Frequency Stability & Walsh-sine Variance

本文着重讨论了采用“双环”和“单环”方案，获得的毫米波锁相稳频源的频率短期稳定度。

A double-loop and a single-loop version of millimeter wave phaSe-locked sources are described .

原子饱和吸收谱谐波稳频短期稳定度研究

Study on Laser Frequency Short-Term Stability

频率短期稳定度问题是多普勒测速关键技术之一。

The problem of short term frequency stability is one of the key-link techniques in Doppler-velocity measurement .

最后，研究了GPSCP平滑码伪距测量，平滑方法缩短了码测量的数据采样率，提高了时间传递的短期稳定度。

The smoothing method reduces the data sampling rate of the pseudo-range measurement and improves the short term stability of the time transfer .

文中详细讨论了脉冲测速雷达的频率短期稳定度与连续波时的差别，并给出近似计算公式。

In this paper , the difference between the short term frequency stability of a pulse Doppler radar and that of a continuous-wave system is discussed in detail , and a set of approximate formulas is presented .

尤其是石英晶体谐振片采用了SC切型进一步提高了短期频率稳定度和加速度灵敏度。

Especially , the use of SC cut quartz crystal further improves the short-term frequency stability and acceleration sensitivity .

本文简述了信号源短期频率稳定度的频畴表征方法，介绍了一个单边带（SSB）相位噪声的自动测试系统。

This paper deals with a method in frequency domain to describe the short - term stabilities of the signal sources , and presents an automatic Test system for SSB phase noise .

示位标检测仪作为专属检测仪器，担负着评定应急示位标性能指标的重要任务。本文首先对示位标的短期频率稳定度指标以及EPIRB检测仪的基本结构进行了介绍与分析。

As the testing equipment , EPIRB tester is responsible for the important work to assess the performance of EPIRB . Firstly , the frequency detecting indexes of the beacon are introduced .

铷87脉泽的短期频率稳定度

Short-Term Frequency Sta-bility of the Rb ~ ( 87 ) Maser

频率源的短期频率稳定度及相位噪声测量

Measurement of short term frequency stability and phase noise of frequency source

机载动目标显示雷达频率源的短期频率稳定度

Short-Term Stability of the Frequency Source in Airborn MIT Radar

采用互相关法测量振荡器的短期频率稳定度

Short Term Stability Measurements ot Oscillators by Crosscorrelation Mathod

短期频率稳定度对多普勒误差的影响

Effect of short-term frequency stability on Doppler error

试验表明，它具有良好的短期频率稳定度和温漂特性。

The results show that it has better short term frequency stability and frequency drife performance with temperature .

相位噪声是衡量振荡器的短期频率稳定度的重要指标，振荡器用于把不同的频率转换到中频。

Phase noise is a measure of the short-term stability of oscillators that are used for the conversion to different IF .

仿真结果表明，经过滤波控制后，振荡器的同步误差稳定在几纳秒，振荡器的短期频率稳定度有了很大提高。

The simulation result shows that after filter controlling , the synchronization error of oscillator keeps at nanosecond level and the short time stability of oscillator is improved greatly .

相位噪声作为短期频率稳定度在频域的一种表现形式，是许多现代电子设备的一项重要指标，其相应的测试设备亦受到广泛的重视。

As one of the expressions of frequency stability in frequency domain , phase noise is an important technical parameter in many modem electronic equipments , and its test-equipments have aroused wide attention .

碘吸收室被置于谐振锁定的环形谐振腔内，另一高精细度的参考光学谐振腔则被用来改善激光器的短期频率稳定度。

An external iodine cell is located inside a ring cavity which is locked at the resonance state and a high fineness reference optical cavity is used for improving the short-term frequency stability of the laser .

采用光纤延时自拍频方法测得单纵模激光输出的短期频率不稳定度随时间线性增长，线性增长率为270Hz/μs。

The frequency instability linear growth rate of 270Hz / μ s was measured with fiber delayed self-heterodyne method .