But the methods of estimation of parameter of the GARCH models, BHHH and GMM, may become invalid because they usually meet the situation that the middle data fluctuate greatly.
而GARCH模型参数估计的主要方法BHHH算法和广义矩方法在实际运算中常遇到中间数据震荡从而导致算法整体失效等。
So firstly to get a better estimation of parameter using iterate inversion on wide scale, then using this estimation as initial value on mini scale till to get global optimum of original problem.
因此可先在粗尺度上迭代反演，得到一个较好的参数估计，再将这个估计作为较精细尺度的初值进行反演，直至原问题的全局最优解。
In this dissertation, we mainly focused on the restricted biased estimation and preliminary test estimation of parameter in linear models with equality restrictions and stochastic linear restrictions.
本文主要是研究线性模型参数在等式约束和随机线性约束下的约束有偏估计以及预检验估计等相关的一些问题。
This input parameter specifies the percentage of data to be used in the data skew estimation.
这个输入参数指定用在数据倾斜估算中的数据的百分比。
This input parameter specifies the new partitioning keys to be used in the estimation of data skews.
这个输入参数指定要被用在数据倾斜估算中的新分区键。
The operator was applied to simulating parameter estimation of nonlinear system, and the resulted showed its validity and its superiority over a general crossover operator.
通过应用于非线性参数估计的仿真计算，表明了这种杂交算子的有效性及其相对于普通杂交算子的优点。
Parameter estimation as minimization - intro to method of least squares, introduction to probability theory, conditional and joint probabilities, statistical independence.
以最小化问题估算参数-最小平方法介绍，机率论介绍，条件机率及联合机率，统计无关。
Parameter estimation in dynamical systems, example : least squares fitting of rate constants from batch reactor data, parametric sensitivity analysis.
动态系统之参数估算，范例：利用批式反应器数据做速率常数之最小平方配适，参数灵敏度分析。
An important research field in modern signal processing is the research of robust parameter estimation techniques.
稳健的参数估计技术是现代信号处理的重要研究领域。
The parameter estimation and system identification of nonlinear structures is a subject which serves to obtain and verify mathematical model of nonlinear structures.
非线性结构的参数估计和系统识别是取得和验证非线性结构数学模型的一门学科。
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。
A careful selection of the best measured FRFs will generally produce much better global poles of the system for the modal parameter estimation process.
在模态参数估计过程中，仔细选择最好的测量频响通常会得到更好的系统全局极点。
When determining empirical formula with test method, estimation value of estimated parameter in regression equation which is obtained with least square method always is a long number.
用实验方法确定经验公式时，回归方程中用最小二乘方法求得的待估参数的估计值往往是一个很长的数。
Analysis on the effect of parameter estimation and forecast accuracy according to the select of variable factors.
变量因子选择对参数估计和估测精度的影响分析。
Moreover, based on this modified fuzzy system, the paper presents an on line identifying algorithm with which the on line parameter estimation of nonlinear system is realized.
在被调整模糊系统基础上，提出了一种非线性系统在线估计参数的在线辨识算法。
For the problem of parameter estimation of one dimensional and two dimensional chirp signal in additive colored Gaussian noise, a new method based on fourth-order cumulant is proposed.
针对加性高斯有色噪声背景下的一维、二维线性调频信号的参量估计问题，引入高阶统计量，提出了一种基于四阶累积量的新方法。
As an example, tension force testing and parameter estimation on a st ay-cable of Dongting Lake Bridge were processed.
作为实例，对洞庭湖大桥的斜拉索进行了张力测试和参数评估。
Incorporating the power load modelling for Northeastern District, the selection of load model, the method of parameter estimation and field tests, etc. are expounded.
结合东北地区负荷建模工作，在负荷模型的选择、参数估计方法以及现场试验等几方面进行了阐述。
Objective A robust parameter estimation method applied to a class of medical dynamic monitoring data is introduced and analyzed in this paper.
目的介绍并分析适用于一类医学动态监测数据的稳健参数估计方法。
We analyze the blind parameter estimation of intercepted signal.
分析了截获信号参数的盲估计问题。
The automatic recognition and parameter estimation techniques of communication signals can be utilized in the authentication and spectrum management for radio signals.
通信信号的自动识别与参数估计技术可用于有关职能部门对无线电信号进行认证、实施频谱监管。
The problem of parameter estimation and array calibration with sub-Nyquist sampling is studied in this doctoral dissertation.
论文主要研究时间（频率）、空间欠采样条件下的参数估计与阵列校正方法。
In a speed sensorless vector control system, the precision of speed estimation is relied on the precision of motor parameter.
在无速度传感器矢量控制系统中，转速估算的精度在很大程度上依赖于电机参数。
The estimation result show that spline function method is one of important methods for nonlinear parameter estimation.
估计结果表明，样条函数法是非线性参数估计的重要方法之一。
Spatial variation pattern of water movement parameters in unsaturated soil is the base of parameter estimation in a large area.
非饱和土壤水分运动参数的空间变异规律是大区域参数估计的基础。
Compared with the Sf obtained from the concept of parameter estimation, the Sbased on the idea of hypothesis test is'much colser to the actual statistical value.
通过算例表明与传统的参数估计概念的分散系数相比，假设检验观点的分散系数更趋近于实际统计值。
New method of parameter estimation for time varying non linear distributed systems is proposed in term of orthogonality of orthogonal polynomial and differential operation matrix.
利用正交多项式序列的正交性及微分算子矩阵，论述了时变非线性分布参数系统参数估计的正交多项式法。
Envelope detection and parameter estimation of each modulation component are the main parts in measurement of voltage fluctuations and flicker.
包络线的检出和调制分量参数估计是电压波动与闪变检测的主要内容。
Envelope detection and parameter estimation of each modulation component are the main parts in measurement of voltage fluctuations and flicker.
包络线的检出和调制分量参数估计是电压波动与闪变检测的主要内容。
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