查询词典 estimation

And then, adopting the same model, cyclic moment estimation statistic of different orders are constructed respectively, large sample variance expressions of the estimator through theoretic analysis are derived, as well as the constraint relation of estimator performance and noise statistical characteristic. The curve of estimation performance is obtained through Monte Carlo simulation test, which proves the related conclusion derived.

然后，论文同样以加性和乘性噪声联合干扰下的复谐波信号和复线性调频信号为观测模型，分别构造了基于不同阶次的循环矩估计量，从理论上推导出了估计量的大样本方差表达式，分析了估计量性能与噪声统计特性的约束关系，通过Monte-Carlo仿真试验得到了估计性能的曲线，验证了推导的有关结论。

The motor's dynamic model, which is generally employed for speed control and parameter estimation applications, is improved for the purpose of improving the parameter estimation accuracy by the assumption that the stator self inductance Ls is identical to the rotor self inductance Lr. The motor's dynamic response to a direct on line start is used to estimate the parameters.

详细给出了遗传算法应用于动态数学模型参数识别问题的一般步骤，在Kron动态数学模型基础上，假定定子自电感Ls和转子自电感Lr相等，利用异步电动机直接空载起动的特性，对异步电动机动态数学模型和简化模型的参数进行了识别，给出了识别参数及有关结果。

We follow the idea of sequential estimation method of Palandri (2007) but simplify the specification to estimate the correlations with BEKK specification proposing the Sequential-BEKK model using multistep Maximum likelihood estimation procedures to estimate.

通过运用BEKK模型模拟的数据，本文比较发现，Sequential-BEKK模型在进行样本内预测相关系数矩阵时，表现优于BEKK系列模型和OGARCH模型，稍差于CCC和Dec模型，但是Sequential-BEKK能够比其他模型更好的刻画相关系数的动态过程。

This paper proposes a Mobile Agent Data Fusion algorithm based on bayes sequential estimation for wireless sensor networks. By designing data packet and data table with specific structure, and considers MA in multihop environments and adopts gradient of Bayes sequential estimation to dispatch MA. MA accounts for performing data processing and making data aggregation decisions at nodes rather than bring data back to a central processor, redundant sensory data will be eliminated.

该算法通过构造特定数据结构的报文，在多跳环境中由Bayes序贯估计调整梯度向量，据此动态决定移动代理的访问路径，使移动代理有选择地在传感器节点之间移动，且在节点处由移动代理对数据进行融合，将多余的感知数据剔除，而不是把原始数据传输到Sink节点。

Keywords polarization;polarimetric SAR;classification;projection index;wavelet-kernel estimation;Bootstrap estimation;sequential projection pursuit cluster model;projection pursuit wavelet learning network;mix

Article From 西北工业大学；计算机科学与技术博士论文 2007年度极化；极化合成孔径雷达；分类；投影指标；小波估计； Bootstrap估计；序列投影寻踪聚类模型；投影寻踪子波学习网络；混合Wishart模型

Based on the stacking of data matrix, real-processing of signal subspace, complex shift invariance equation and joint eigenvalue estimation, an algorithm is presented to solve this problem and handle the estimation jointly.

基于数据矩阵的重新排列、信号子空间的实数化处理、复数移不变方程以及联合特征值估计，推导出联合估计参数的ESPRIT类算法，该算法将参数估计问题转化为3个具有实特征值的实数矩阵的联合特征值估计问题。

Spatial spectrum estimation algorithm source code, spatial spectrum estimation array signal processing is an important element.

详细说明：空间谱估计算法源代码，空间谱估计是阵列信号处理的一个重要内容。

It is shown that finally this problem turns to the estimation of the real joint eigenvalues of three real matrices and solve the joint eigenvalue estimation by a recently proposed simultaneous diagonalization algorithm.

通过同时对角化算法估计矩阵的联合特征值，获得了参数联合估计的强可辨识性，即允许信号参数在任何一维任意重复，并可以使估计参数实现自动配对。

Use of genetic algorithms in thermal property estimation: simultaneous estimation of thermal properties［J］.

孔祥谦。有限单元法在传热学中的应用［M］。

An algorithm base on Pro-ESPRIT and MR-ESPRIT of simultaneous estimation of frequency and 2D AOA with spatial-temporal sub-Nyquist sampling is proposed. The frequency estimation algorithm is suit for arbitrary geometry of antenna array.

提出了基于时空欠采样条件、Pro-ESPRIT方法和多分辨意义下的宽频段入射信号频率和二维到达角估计方法，并指出，其中的频率估计算法适用于任意几何结构阵列。

Liapunov—Schmidt method is one of the most important method in the bifurcation theory.

Liapunov—Schmidt方法是分叉理论的最重要方法之一。

Be courteous -- even when people are most discourteous to you .

要有礼貌──即使当別人对你最不礼貌的时候。