Estimation of GM (1, 1) model parameter usually adopts the least square criterion, but test of model precision often USES average relative error criterion.
估计GM(1,1)模型中的参数通常采用最小二乘准则，而在模型精度检验时又常采用平均相对误差。
For the estimation of satellite state, the extended sequential estimation algorithm was applied. The numerical method was used to integrate state vector and error covariance matrix.
在卫星的状态估计过程中应用推广的序列估计算法，借助数值积分方法积分状态向量和协方差矩阵。
An approximate expression of the volume of body of rotation together with its error estimation is derived on the basis of theory of numbers.
本文用数论方法推导出一个计算旋转体体积的近似公式，并给出该近似公式的误差估计。
Precision estimation of principal direction is more objective by using principal stress deflection error proposed in this paper.
提出了主应力的偏角误差概念及其计算方法，使主应力方向的精度评定更加真实客观。
Specially, by use of this method, we can give high precision estimation of system error only using the tracking data of a set of MISTRAM.
运用该方法，只要一套MISTRAM系统的跟踪数据，就能给出自由飞行段常值系统误差的估计。
If we heighten the precision of measuring equipment, the central difference's relative error of the estimation variance improved great, which is less than 10%.
若提高测量仪表精度，则中心差分法估计方差相对值明显改善，可提高到10%以内。
This paper proposes a new speech enhancement scheme based on modified Minimum Mean Square Error (MMSE) estimation of speech Short Time Spectrum Amplitude (STSA).
本文提出了一种改进型语音短时谱最小均方误差(MMSE)估计的增强方法。
The problem of filtering coordinate system selection for closed-in weapon system is discussed, from the standpoint of minimizing the filter estimation error.
对近程武器系统跟踪滤波坐标系的选择问题，从精度的角度作了讨论。
There are two forms of extended sequential estimation algorithm: 1. integrating error covariance matrix; 2. integrating state transition matrix.
推广的序贯估算法有两种形式：1。积分误差协方差矩阵，2。积分状态转移矩阵。
But for case of measured correlation sequence the whole sequence may be used to reduce the effect of error on model parameter estimation.
但是对实测的相关序列，我们可以利用相关序列的全部来减小误差对参数估计的影响。
Simulation results show that the system has better control performance and estimation effect, but the influence of parameters variation on speed estimation error is evident.
仿真结果表明该系统有较好的控制性能和辨识效果，但参数变化对速度辨识误差有明显的影响。
Since there is no need to suppose the variance of error, the estimation method which we established is more efficient in application.
由于在估计方法中无需假定误差方差，因此，所构造的估计方法更符合实际应用情况。
If the scatter selected in phase gradient algorithm(PGA) algorithm is not isolated, the accuracy of the phase error estimation will be degraded.
当相位梯度算法挑选的散射点不是孤立散射点时，导致相位误差估计的准确性下降。
And electric steady also is introduced to estimation of rotor position, which solves effectively the problem of big error on rotor position estimation in process of dynamic.
同时将电气稳态的概念引入转子位置估计中，有效地解决了电机在稳态情况下转子位置估计误差大的问题。
This paper mainly discusses the speech enhancement algorithm based on the Minimum Mean Square Error (MMSE) estimation of speech short time spectrum.
本文主要讨论基于语音短时谱估计的语音增强算法。
We further analyze the effect of channel estimation error on multiuser detection.
进一步分析了信道估计错误对多用户检测器的影响。
We present a parallel mesh adaptive finite element algorithm for numerical simulation of flows based on error estimation.
给出了一种流动数值模拟中的基于误差估算的并行网格自适应有限元算法。
Computer simulation results of trajectory extrapolation and error estimation are also given in this paper.
本文还给出了弹道外推及误差估计的计算机模拟结果。
The application of system transfer function in measuring night airglow, the temperature shift and the error estimation of the system are also briefly discussed.
另外对系统传输函数在实际气辉测量中的应用、系统的温度漂移以及误差估计也进行了简要讨论。
The calculation formulas of sample size based on the error limitation are given for estimation of population mean.
对于样本均值估计总体均值，给出了基于误差限制的样本容量的计算式。
Zero-error experiment can observe the distribution of gross error after robust estimation, then compare the estimation value and real value, so we can evaluate externally all kinds of robust method.
零误差实验可以更有效地观察粗差在经过抗差估计以后的分布情况，再将估计值与真值比较，从而较客观地对各种抗差估计方法做出评价。
At last, a set of Chinese characters recognition system with reaction are constructed, based on and using the error estimation approach of Chinese characters Outlines feature.
最后，给出了一种基于汉字图形轮廓特征的误差估计方法，并利用误差估计初步建立了一套带有反馈的汉字识别系统。
However, error can be caused because of empirical estimation and the simple consideration of the circumstance factors.
由于经验估算、考虑环境因素简单，由此带来较大的计算误差。
The method consists of real-time estimation of signal frequency, synchronous tracking of sampling frequency and error correction of harmonic coefficients.
该方法包括信号频率实时估计、采样频率同步跟踪和谐波系数误差校正几个要素。
The existence and uniqueness theorem of its solution is proved by the perturbation method and the estimation of error for its approximate solution is given.
然后利用摄动方法证明了这个问题解的存在唯一性，同时给出了解的渐近展开和误差估计。
The factors, which introduce the error of temporal differential estimation are, analyzed. The successive approximation calculation model for the optical flow estimation is put forward.
分析了光流计算中产生时域微分估计误差的各种因素，提出了光流的逐次逼近计算模型。
The adaptive compensation term of the optimal approximation error is adopted to minimize the influence of the modeling error and the parameter estimation error.
并通过引入最优逼近误差的自适应补偿项来消除建模误差和参数估计误差的影响。
The error estimation of rational cubic spline with linear denominators is given, and then the interpolation of a kind of space closed curves under cylindrical coordinate system is investigated.
给出了具有线性分母的有理三次样条函数的误差估计，并在柱面坐标系下对一类空间闭曲线的插值问题进行了研究；
An error in closure stress measurement can lead to a significant error in the estimation of the net pressure and, consequently, the fracture geometry.
闭合应力测量的错误会对净压估计，以及随后的断裂几何形状的估计造成严重的错误。
An error in closure stress measurement can lead to a significant error in the estimation of the net pressure and, consequently, the fracture geometry.
闭合应力测量的错误会对净压估计，以及随后的断裂几何形状的估计造成严重的错误。
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