本文对双曲-抛物偏微分方程奇异摄动问题构造了一个指数型拟合差分格式。
In this paper we constructed an exponentially fitted difference scheme for singular perturbation problem of hyperbolic-parabolic partial differential equation.
利用时间窗数据和频率窗数据所进行的联合时-频反演，缩小了拟合差，提高了定量解释精度。
The fitting difference is reduced and the precise of quantitative interpretation is improved by means of joint TF inversion with time and frequency window data.
利用拟合差分算法有效去除了荧光背景噪声，获得了明显的人体皮肤中类胡萝卜素的拉曼光谱。
At last we obtained obvious resonance Raman spectrum of carotenoid in human skin after the fluorescence background has been fitted and subtracted from the original spectra.
对19个国家25年（1975—2000）月度数据的拟合效果表明在经汇率调整后的对美国股市收益率差有着较好的拟合结果。
Our empirical results from historical data of 19 countries in 25 years (1975-2000) show that the return differential of equity market has good prediction power for currency crises.
所采用的正常高残差拟合方法，既顾及了似大地水准面模型的几何特性，又顾及了其物理特性。
Residuals used in normal fitting method, not only takes into account the quasi-geoid model for the geometric properties, but also take into account its physical properties.
在高程转换系统中首先对输入的数据进行粗差探测，剔除可能存在粗差的观测数据，从而提高拟合结果的可靠性。
In the elevation conversion system, at first detected the gross errors of inputting data and then removed it, enhanced the reliability of the fitting results.
文章通过对差分离散化实现过程的分析指出差分离散化存在的不足，并进而给出了拟合离散化方法。
The paper points out the disadvantages and problems of the difference discrete method by analyzing its implementation procedure and introduces a new fitting discrete method.
文中称差分近似为局部离散化方法，称整体拟合为整体离散化方法。
The difference approximation is called the partial discretization method, and the overall fitting the overall discretization method.
对于单、双测点数据，研究相邻数据变化率的方法和曲线拟合残差的方法。
One is based on the rate of adjacent data change and the other is based on curve fitting residual.
通过利用预测过程中产生的残差信息进行反馈矫正，保证了BM模型劫高的拟合精度和稳健的预测性能，增强了对复杂非线性动态系统的适应性。
The examples show that the scheme applied to predicting groundwater level regime is practical and efficient, and the BM can ensure high fitting precision, robust forecasting an…
本文对残差具有异方差性的传递函数模型提出了一种新的模型——条件异方差传递函数模型，并对建立此类模型的条件和拟合及预测效果进行了研究。
In this paper, a new model-transmissibility function model with conditional heteroscedasticity is proposed, and its conditions as well as the fitting and forecasting effect have been studied.
基于最小二乘的选权迭代抗差拟合模型解决了常规拟合模型不稳定的缺点，实际数据证明，模型结果能够达到等级几何水准的精度。
So the model modifies the precarious disadvantage of general simulation model. Practice data proves that the model can obtain the precision of grade geometry level.
本文以残差诊断法为中心，讨论了测试工程中数据分析、拟合与诊断的方法，并通过实例加以说明。
This paper deals with the methods of data analysis, data fit and data diagnosis by an example in the measurement engineering practices with the residual error diagnosis method as the key point.
本文用最小二乘法一致逼近及容差平滑分段圆弧拟合平面点列。
This article introduces least square method of unanimous approximation and smooth tolerance of segmented circular arc fit for planar range of Points.
传统的有限差分或局部拟合方法未考虑到表面上可能出现的不连续性，因而会不可避免地出现错误。
Without consideration of discontinuities possible existing in range image, traditional finite difference or local surface fitting method, inevitably produce errors.
试验数据分析表明，测站钟差经一阶多项式拟合后的残差可近似为零均值的测量噪声；
The experiment data analysis results show that the clock residual error of monitor station after fitting by 1st order polynomial is approximately taken as noise with zero mean.
分析了干涉条纹两路光电差分信号的有效范围，提出采用椭圆拟合对差分信号进行拟合、校正与补偿，以进一步提高系统测量精度的方法。
Effective range of detection signal is analyzed and proposes a means of ellipse fit that revises and compensates measurement result to improve measurement precision.
结果显示随机概率抽样方法拟合的相函数与散射相函数间的方均根差更小。
The result showed that the root-mean-square of Phase function fitted by random probability sampling method is smaller.
回归模型的残差项反映了对被解释变量有影响但未列入解释变量的因素所产生的噪音，这部分噪音可由时间序列模型进行拟合。
The residual term in the regression model is the noise generated by the omitted variables that influent dependent variable in the model. The time series model can fit this noise.
利用三维边界拟合坐标变换技术，可将具有任意曲面边界的三维物理区域变成长方体计算区域，在该区域中形成单位立方体差分网格。
By means of BFCT, a three-dimensional physical space with arbitrary configuration can be transformed into standard cube, forming the unit cubic grid.
在已确定模型的前提下，存在误差的主要原因是采样数据间隔太大且不均匀导致拟合残差增大。
Under the premise of the defined model, the error is produced by the large intervals and uneven characteristics of data.
利用最小二乘算法实现对三维平面的拟合，采用的是脉冲对消法，非归零型差分相位调制信号建模与仿真分析。
Least-squares algorithm to fit a three-dimensional plane, it USES a pulse of consumer law, NRZ type differential phase modulation signal modeling and simulation analysis.
介绍了用正弦波拟合法评价测量系统通道间延迟时间差不确定度的分析和评定过程。
The uncertainty of evaluation results of delay between channels of linear measurement system by using the least mean square four-parameter sine-wave curve-fit method is described.
介绍了用正弦波拟合法评价测量系统通道间延迟时间差不确定度的分析和评定过程。
The uncertainty of evaluation results of delay between channels of linear measurement system by using the least mean square four-parameter sine-wave curve-fit method is described.
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