1) covariance misspecification
白噪声偏离
1.
Simulation studies show that the predictors are often insensitive to covariance misspecification under,especially disturbances which provides a useful reference to the prac- titioners.
本文应用Banerjee和Magnus于1999年提出的局部敏感性分析方法讨论了线性混合效应模型中预测值关于误差项白噪声偏离的敏感性问题,提出了敏感性度量统计量,并在AR(1)和MA(1)误差项条件下数值模拟了这些统计量的表现。
2) discrete white noise
离散白噪声
3) polarization noise
偏振噪声
1.
Based on the model mentioned above, a theoretic analysis on the optical path polarization is made, an expression of the highest polarization error is acquired, and furthermore, the influences of each apparatus on polarization noise are discussed.
在此基础上进行了光路偏振噪声的理论分析,通过计算得出最大偏振误差表达式,讨论了光路器件的性能对陀螺偏振噪声的影响,得出消光比是影响结果的关键因子,并阐述了主要有效措施。
2.
Zero drift and polarization noise are the main two hindrances in the development of fiber gyroscopes in China.
采用相干矩阵和琼斯矩阵建立了光纤陀螺光路传输系统的数学模型 ,在此基础上 ,进行了光路偏振噪声的理论分析。
3.
If has been proved theoretically that the deviation will induce phase noise in interferometer,if the error of the Faraday rotator angle is about ±5°,the amplitude of polarization-induced phase noise is related to the polarization noise in lead fiber and the state of polarization of the input light to interferometer,and it is less than 1.
理论分析法拉第旋转角有偏差时,引导光纤中的偏振态扰动(偏振噪声)会在干涉仪中引入相位噪声,该相位噪声水平与引导光纤中的偏振噪声水平和干涉仪输入光的偏振态有关。
4) noise bias
噪声偏差
1.
Because there are many kinds of noise, the noise bias terms are introduced in the iterative shift and add method for astronomical image reconstruction when working in real data.
当工作于实际数据时 ,由于存在着多种噪声 ,导致了天文像复原迭代位移叠加法中的噪声偏差项。
5) bias noise
偏压噪声
补充资料:白噪声
白噪声
white noise
白噪声[咖te俪se;6e几u曲川yM] 有常值谱密度(sPeet阁de招ity)的广义平稳随机过程(stationa理stochasticP联ess)X(t).白噪声的广义相关函数形如刀(r)二。’占(t),其中叮’是正常数而占(t)是吞函数.白噪声过程被广泛应用于描述有很小相关周期的随机扰动(例如“热噪声”—导体中由电子的热运动产生的电流强度的脉动).在白噪声的谱分解 x(。)一丁。!、!d:(、)中,其“基本振动”e“‘d:(又)在所有频率又处都有同样的平均强度;更确切些说,它们的平均平方振幅是 Eld:(洲2一兰以一二<伙二. 2兀这个谱分解意味着,对每一平方可积函数甲(t),
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条