查询词典 parameter estimation

Events,Operation and Relation of Sets, Classical Probability, Geometrical Probability , Statistical Stability of a Frequency, Axioms of Probability, Conditional Probability, Total Probability Theorem, Bayes' Rule,Independent Events,Independent Repeated Trials, One Dimensional Random Variables, Discrete Random Variables, Distribution Function of a Random Variables , Continuous Random Variables, Normal Distribution, Distribution of a Function of a Random Variable, Multidimensional Random Variables, Joint Distribution Function, Marginal Distribution Function,Discrete Two—Dimensional Random Variables,Continuous Two—Dimensional Random Variables, Independent Random Variables, Distribution of Functions of Random Variables,Expectation,Variance, Covariance, Coefficient of Correlation, Bivariate Normal Distribution, Law of Large Numbers, The Central Limit Theorems, Sample and Population ,Chi—Squared, T and F Distributions , Sampling Distributions , Point Estimation , Interval Estimation , Testing Hypotheses , A Test of Significance for Parameters in a Single Sample From a Normally Distributed Population , A Test of Significance for Parameters in Two Sample From Normally Distributed Populations .

本课程的主要内容：概率的概念与运算、随机变量及其分布、随机变量的数字特征与极限定理、数理统计的基本概念、估计和检验的基本方法，随机事件与概率随机事件、事件的关系与运算、几何概率、统计概率等，条件概率、全概率公式、贝叶斯公式、事件的独立性、二项概率公式，随机变量的概念、离散型随机变量、随机变量的分布函数、连续型随机变量、随机变量函数的分布，多维随机变量及其分布函数、边缘分布函数、随机变量的独立性、二维随机变量函数的分布，数学期望、方差、协方差和相关系数、大数定律、中心极限定理，总体与样本， X 2-分布、 t-分布和 F-分布，统计量及抽样分布，假设检验的基本概念、单个正态总体参数的显著性检验、两个正态总体参数的显著性检验。

BMEICS synthesizes the character of block motion estimation and that of global search, diversity, and no prone to premature in immune clonal selection. It speeds up the process of motion estimation while maintaining the average with little loss.

该方法将块匹配运动估计问题的性质与免疫克隆选择算法所具有的全局搜索特性、解的多样性和不易早熟的特点相融合，在能够获得接近全搜索方法所得到的平均峰值信噪比的前提下，使得平均搜索点数大为降低。

In this paper, a novel algorithm for high resolution DOA estimation is proposed, which not only skips sources number estimation and EVD, but also behaves satisfactorily with a few snapshot, it may be viewed as a combination of merit of conventional Capon and MUSIC method.

该文提出一种超分辨的DOA估计算法，此算法不需要预判信源个数和进行特征值分解，同时在时变环境中，针对快拍数较少的情况下，依然保持较高的角度分辨能力，可以被认为是综合了Capon法和MUSIC法的优点。

Capon method for DOA estimation, the program is irrelevant to the three incoming signals DOA estimation.

详细说明： Capon法进行波达方向估计，该程序对3个不相干入射信号进行波达方向估计。

The paper chooses twenty-five key meadow sample plots in the Loess Plateau, then discusses the estimation model and estimation method of vegetation coverage by the pictures taken by the digital camera, and puts forward the effective solution for edge distortion problem caused by the central projection and vegetation information recognition problem.

该文选择黄土高原退耕还林还草区野外测量的25个典型样方，探讨了数码照相法估算植被盖度的模型和方法，提出了中心投影引起的边缘畸变问题和植被信息识别问题的有效解决方案。

The dissertation turns out the software of Helmert variance component estimation and applied it into Sutong Bridge GPS control network adjustment. The control points coordinate precision are increased, it shows that Helmert variance component estimation is valuable to GPS control network adjustment in practice.

本文完成了Helmert方差分量估计软件的研制，并把该估计方法成功应用于苏通大桥GPS控制网平差处理中，经过验后估计的网点坐标精度得到提高，说明了赫尔默特方差分量估计在GPS网平差中的实用价值。

The results showed that:(1) we can mapping quantitative trait locus while estimating the variance component of QTL;(2) granddaughter design is better than daughter design when mapping QTL;(3) it is easy to map a QTL for trait with a high heriability and a large QTL variance contribution;(4) we can estimate the variance component of a QTL by TM-BLUP based on ML method whether the QTL has only 2 alleles or QTL has normal distributed alleles effects;(5) the estimation accuracy of variance component contributed by QTL was improved by using of grand daughter design;(6) the higher the heritability and the QTL variance contribution was, the more accurate estimation of QTL variance component.

结果表明：（1）采用随机QTL效应模型和最大似然法，在估计QTL方差组分的同时，能够定位QTL；（2）孙女设计与女儿设计相比，在其它因素相同时，容易检出QTL；（3）遗传力高，QTL方差贡献较大的性状，QTL检出的效果优于遗传力低，QTL方差贡献较小的性状；（4）无论QTL上有2个等位基因，还是QTL上等位基因的效应服从正态分布，都可将其看作随机效应，采用基于TM-BLUP的ML法，估计其方差组分和定位QTL；（5）QTL方差组分估计的准确性，孙女设计高于女儿设计；（6）遗传力高的性状，QTL方差贡献大的QTL，QTL方差组分估计的准确性高。

The article discussed statistic to estimate computative meaning, value, the principle that estimation should follow, the requirement that should have reachs the specific means with computative estimation.

本文论述了统计估计推算的涵义、重要性，估算应遵循的原则，应具备的条件及估计推算的具体方法。

Firstly, we suggest using context-free language to describe the start code string of MPEG-2 and using minimum-distance error-correcting parser to correct the errors in MPEG-2 start code string. This method hasn't been reported elsewhere. Secondly, side motion estimation rule is proposed for temporal error concealment and based on the rule, many new algorithms are proposed. Among which, the temporal error concealment method utilizing overlapped block motion compensation and side motion estimation rule has exceeded the best performance ever reported.

首先，提出用上下文无关语言描述MPEG-2起始码链，用最小距离误差校正剖析方法进行MPEG-2起始码链的识别与误差校正，该方法国际上尚未有同类报导；其次，提出了用边界运动估计准则进行时域错误掩盖，基于该准则提出了一系列新算法，其中基于重叠块运动补偿和边界运动估计准则的时域错误掩盖算法达到所有已知算法的最佳性能。

Third, the discussion of the corresponding relationship of the real angles to the apparent real angles is performed, the asymptotic bias and MSE of real angles are given. Fourth, based on above conclusions, the analysis of two typical cases is made by numerical analysis and computer simulation: Case A when the impinging signals are divided into desired signals and interfering signals: it is shown that similar to Cyclic estimation of DOA, the smaller the separation between interfering direction and signal direction, in general, the smaller the estimation variance.

首先，研究了无穷快拍时信号数目有误的最大似然估计，引入了视在真实角度的概念；其次，导出了视在真实角度最大似然估计大样本时的分布以及渐近均方误差的解析表达式，而且还证明了：Stoica性能分析结果是现在的分析结果在信号数目准确时的特例；第三，讨论了真实角度与视在真实角度的关系，给出了真实角度的渐近偏和渐近均方误差；第四，依据前面的结果，利用数值分析和模拟实验的方法对两种典型情况做了分析： 1 在入射信号被分为干扰信号和所需信号情况下：结果表明：与CyclicDOA估计一样，干扰方向与所需信号方向靠的越近，所需信号估计的方差越小，越远离，方差越大。

Bob Eckert has been chairman and chief executive of Mattel for eight years.

美泰董事长兼首席执行官鲍勃·埃克尔特在任已8年。

The outlook for honors and disgraces carries on and surpasses the traditional outlook for honors and disgraces theoretically, and carries on and develops the theory of construction of socialist mora...

社会主义荣辱观的提出在理论上是对传统荣辱观的一次继承和超越，是对社会主义道德建设理论的继承和发展，在实践上有利于形成良好的社会风尚。