参数估计

Stochastic approximation which is used for parameter estimation is an iterative algorithm for random environments.

中文摘要随机近似方法是一个递回式的演算方法，在随机的环境下作参数估计。

Then we give some premiliaries, including stochastic integration for fractional Brownian motion, parameter estimates in the fraction...

第三章是本文的主要部分，给出了分数O-U过程中参数估计的大偏差，并且给出了证明。

Actually, the uncertainty of survey data composes a lot of factors, not only stochastic variable. So traditional parameter estimation theories are not strict. To overcome their shortcoming, Prof.

实际上，测量数据的不确定性是多种不确定因素的综合，而不仅仅是由随机误差组成，因此使用目前的任何一种参数估计方法来处理测量数据都是不严密的。

And images processed with the incorrect parameters will be worsened. This paper analyses the effect of SNR on autofocus and proposes an adaptive filter in SAR azimuth subsampling to keep SNR as high as possible, so that the performance of autofocus can be improved and higher image quality achieved.

该文分析了信噪比对自聚焦的影响，提出利用自适应滤波器来做方位向预滤波和降采样，在降低采样率的同时，保持原始图像的信噪比，再经有效的自动聚焦算法，得到较准确的多普勒参数估计值，从而获取高分辨率SAR图像。

A table of critical values is presented for goodness of fit test, which is valid when P-Ⅲ distribution is assumed and PWM employed to estimate it's parameters.

即以拟优检验的理论来选择线型，以设计值X〓的无偏及有效性为准则去评价参数估计方法的优劣。

Gave a test statistic SC which can be used to detect whether the curvature is significance in the model.

2006提出了一个仅基於参数估计值的统计量SC作为判断二因子模型中，曲面是否存在之依据。

The theory and methods of time series analysis, in this paper, were used to develop the quantitative predicting models for pesticide reminds. The estimation of parameters were given out.

作者用时间序列分析的理论与方法，研制农药残留定量预测模型，给出参数估计，提出非平稳时序叠合模型，对农药降解规律进行动态模拟，并以剩余平方和作为优化标准与其他方法进行比较。

Parameter estimation is the key in building up a model in time series analysis.

时序模型的参数估计是时序模型建模的核心。

It is unable to estimate the truncation errors just use the tracking data only.

概述在靶场观测数据处理中，影响各种参数估计及其精度的误差是多种多样的[1]。

Results Simulation study shows that parameters estimations are approximately unbiased in MCMC when large sample size.

结果 模拟研究表明大样本时MCMC法可得到近似无偏的参数估计。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新