查询词典 error analysis

According to the definition of axis straightness error ,a mathematical model was developed to evaluate axis straightness error by way of least square method in the rectangular coordinates.

根据轴线直线度误差的定义，建立了在直角坐标采样时该项误差的最小二乘评定法数学模型，该模型的采样数据不需要等角度间隔采样；并用计算机进行仿真分析·结果表明，所建立的数学模型编程简单，计算出的轴线直线度误差值与真实情况的误差小于 10 -6μm·因此由本模型引入的误差可忽略不计·所建立的数学模型为研制形位误差虚拟测量系统提供了理论基础

To deal with the measurement error induced by the motion compensation error, the phase of the target\'s barycentre is estimated to compensate the phase differences. The measured scatterers\' height and width are wrong because they are not obtained in rectangular coordinates.

建立了在目标与天线电轴间存在较大斜角情况下的干涉式逆合成孔径雷达三维成像模型，并给出了运动补偿的详细步骤，针对因目标运动补偿误差导致的干涉测量误差，提出了利用估计出的目标重心相位对相位差进行补偿的方法。

The error spectra obtained from the results of the data processing by different operators based on rectangular formula, trapezoid formula and their compensation forms are discussed, through which some error features of these operators are obtained.

文中在总体上讨论了诸如矩形公式、梯形公式以及它们的补偿形式等数据处理方法的误差谱，讨论了它们的一系列性质，例如对称性、周期性。

Furthermore, how to apply the model efficiently in practice is deeply discussed. As the variance produced by the forecasting model as concerned, the real-time revised method of hydrological forecasting is highlighted. Next arranged, the multi-stratum recursive prediction model is put forward to forecast the error series that is a dynamic system. Later, an error selfregressive multi-stratum recursive prediction model is set up as well as a current algorithm offered. Finally, the difference collated model and the gloss control method, which are devoted to updating the mid-long term hydrological forecasting during the meditate period, are put forward.

在综合评述中长期水文预报现有方法和模型的基础上，采用时间序列分析方法，建立中长期水文预报的时间序列组合模型，并对模型如何在实际中有效应用作了较为深入的探讨；针对模型预报所产生的误差，又重点研究了水文预报实时修正方法：提出了采用多层递阶预报方法对误差序列这一动态系统进行预报，建立了误差自回归多层递阶预报模型，并提出了较为通用的解算方法；给出了水文中长期预报中期修正的残差相关模型和总量控制方法。

The error of the reflectivity contrast that is induced by the error of the thickness of each layer is also given.

同时对各膜层的膜厚误差因子进行了计算，给出了各膜层的膜厚误差对光盘反射率的影响程度。

The error of the reflectivity contrast that is induced by the error of the thickness of each layer is given.

通过模拟计算得到了较佳光学性能的膜系匹配，给出了各膜层的膜厚误差对光盘反射率的影响程度。

In our design, the main assumption is that the regressor vector satisfies certain Lipschitz condition; the key procedure is that we transform the error system to the traditional form with the parameter estimation error multiplying the"regressor vector"; and the"regressor vector-based"update law comes from the combination of the gradient algorithm with a σ-modified term.

基于回归向量的自适应律是在经典的梯度算法上增加一个σ修正项后得到的。

The condition of the minimum relative error is theoretically given. That is the place of the balance point should be chosen according to the ratio of the measured resistance Rx to the internal resistance Rg of the galvanometer in order to get the minimum relative error.

并在此基础上讨论了滑线电桥的灵敏度及其对所测电阻Rx的影响，从理论上给出了滑线电桥最小相对误差的条件：要使滑线电桥灵敏度所引起的相对误差最小，电桥平衡点的位置应按待测电阻Rx与检流计内阻Rg的比值来确定。

Range gates and the Chinese remainder theorem are usually used to resolve ambiguities of multiple targets.This system is complex in hardware structure,and a small range error on single PRF can cause a large error in the resolved range.

硬件距离门与中国的余数定理是常用的多目标模糊分辨算法，但这种处理系统硬件比较复杂，并且在单一PRF上较小的距离误差也可能导致很大的测距偏差。

We apologize for any trouble/inconvenience you have been put to by our error, and will do our best to prevent any reoccurrence of this sort of error.

对于此次失误给贵公司带来的麻烦，我们表示由衰歉意。今后我们一定尽力，使这类错误不再发生。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。