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- It may be proved that it is just the Allan variance relations as fa = 0 and fb = fh. 可以证明,当f_a=0、f_b=f_h时,它就是Allan方差公式。
- It provides a lot of accurate formulae for spectral density transforming into Allan variance. 本文推导了有限频域[f_a,f_b]中的噪声引起的修正的Allan方差公式,为噪声的谱密度变换成Allan方差提供了准确的公式。
- L 1 RLG was analysed with Allan variance, and the errors which exist in L 1 RLG were given. 该文用Alan方差对L－1环形激光陀螺仪进行了具体的分析，得到了存在于L－1环形激光陀螺仪中的各误差源。
- Allan variance estimated by simulated noise and calculated theoretically using power law model are well matched. 采用白噪声通过FIR滤波器的方法近似地模拟了闪烁噪声。 模拟相噪得到的Allan方差估计值与幂律模型得到的Allan方差理论值符合得较好。
- But the constant value in the Allan variance formula due to flicker phase noise given in some literatures is quite different. 但对闪烁相位噪声所引起的Allan方差公式中的常数,许多文献给出的数值相差很大。
- This paper describes random error sources, and introduces the method of Allan variance and its application at characterizing the performance of a Ring Laser Gyro(RLG). 本文讨论了环形激光陀螺（RLG）的随机噪声及其产生机理，并介绍了国外常用的用于评估RLG和其它精密测量仪器性能的Alan方差法，最后，应用Alan方差法来分析某型号环形激光陀螺的误差特性。
- Testing results achieve the technical indices and precision requirement. 2 The properties of the FOG signal random drift are detected with the Allan variance method. 2针对光纤陀螺输出信号漂移误差和噪声对视轴稳定回路的影响,提出了采用Allan方差法对光纤陀螺零漂信号进行时域分析方法。
- In the analysis of frequency stability of laser and other kind of oscillators,such as cesium,rubidium as well as crystal,Allan variance have got extensive application. 在激光频率与各类振荡器(如铯、铷以及晶体等)频率稳定度的分析中,Allan方差的理论获得广泛的应用。
- Methods of PSD(power spectrum density),ARMA,and Allan variance were federally used to study of the error speciality and modeling technology of the FOG(fiber optic gyroscope). 提出应用ARMA;A llan方差分析法及功率谱密度PSD(Power Spectrum Density)分析法联合对光纤陀螺FOG(Fiber Optic Gyroscope)的误差特性及建模技术进行了研究.
- The result of testing and statistic analyzing for FOG signal indicates that the Allan variance means is successful in separating the main random error source of signal noise and the advantages of the wavelet threshold-value filter is verified. 最后对某陀螺惯性稳定跟踪转台中使用的光纤陀螺信号的测试和统计分析结果表明;采用Allan方差法能够有效地分离和辨识陀螺零漂信号中的各项噪声源随机误差系数和误差大小;采用的小波变换阈值滤波的去噪效果明显.
- The Allan variance and PSD were utilized to analyze the output of the FOG,and some main noise of the fiber optic gyroscope could be extracted and confirmed,then the performance of ARMA and AR of the FOG was evaluated. 利用A llan方差及PSD分析法对光纤陀螺输出信号的分析;有效地分离并确定影响光纤陀螺输出性能的几种主要随机误差源;并对所建立的光纤陀螺ARMA模型和AR模型的精度进行了评估.
- The kalman filter is designed based on the time sequence model of drift data of laser gyro and used to filter the drift data of laser gyro. The method of Allan variance is used to analyze the results of filtering. 设计了基于激光陀螺漂移数据时间序列模型的卡尔曼滤波器，对激光陀螺漂移数据进行了滤波，并采用Allan方差法分析了滤波结果；
- It is necessary to build the random error model of gyros. Several methods can be used to analyse random error model of ring laser gyro (RLG), such as power spectrum density (PSD), ARMA, and Allan variance. 在环形激光陀螺仪（RLG）随机误差模型分析方法中，有功率谱密度（PSD）分析，时序ARMA模型，及Alan方差分析。
- By the relation between the Allan variance of signal noise and power spectrum density (PSD), the sources of some kinds of noise and its properties are analyzed and calculated using fitting algorithm in the least square method(LSM). 根据光纤陀螺信号漂移和噪声的Allan方差与功率谱密度(PSD)关系,在Allan标准差模型的基础上采用最小二乘法(LSM)进行样本数据拟和,有效地分离和辨识出了光纤陀螺零漂信号中的各项误差源随机误差系数和误差贡献大小。
- Through the simulation result of transfer function of Allan variances, definites the range of measurement bandwidth and the relationship which the dead time satisfies. 通过对阿仑方差传递函数的仿真计算结果，确定了测量带宽的选择范围，间隙时间选择应满足的关系。
- My ideas are at variance with his. 我的思想和他的不同。
- Laser Gyro Performance Estimate Method Based on Allan Variance 一种基于Allan方差方法的激光陀螺性能评价方法
- Nothing can set the twin brothers at variance. 没有什么事能使这对双胞胎兄弟吵起来。
- Genarilized Allan Variance and Modilied Allan Variance 广义阿仑方差及修正阿仑方差
- Allan Variance Analysis of Fiber-optic Gyroscope Zero-drift Signal 光纤陀螺零漂信号的Allan方差分析
