查询词典 sampling error

An isolated point s statistic excluding method is proposed in this paper to eliminate crassitude error in clouding data, which include plenty of oddity data. The method based on the distance between two neighbour points can eliminate the data beyond normal distribution. A error limitation of angle and chordal highness method is used to filtrate clouding point.

针对大量含奇异点的数据点云，本文提出了剔除粗大误差的孤立点统计排异法，该方法根据对相邻点距离的统计，剔除在正态分布以外的点；对大量数据的精减，利用角度和弦高的最大允许偏差法进行点云精减。

The coordinate transformation and numerical integration was executed on the discretized tetrahedral elements based on which the 3-D MT vector-finite element method was implemented. A whole computation framework for 3-D vector-finite element method with unstructured mesh was given. Based on this some typical models were tested which has demonstrated that our algorithm could distinctively avoid problems caused by the fake solution and both the accuracy and efficiency were enhanced which made our algorithm has a bright future for further application.3. According to theory of Sobolev vector space and the discretization of Helmholtz space, the error estimate which was suitable for 3-D MT vector-finite element modeling was deduced by which the procedure of adaptive technique was guaranteed.4. Based on the fully unstructured tetrahedralization and optical strategy, the 3-D magnetotelluric h-adaptive vector-finite element method was presented through combining the error estimate. With this work, the accuracy and creditableness for 3-D MT complicatedly modeling was guaranteed.5. The 3-D magnetotelluric h-adaptive vector-finite element algorithm with unstructured mesh was implemented.

针对非结构化的四面体单元，采用坐标变换和数值积分方法，实现了MT三维矢量有限单元分析，建立起基于非结构化网格的三维MT矢量有限元计算流程，并对典型模型和国际标准电磁模型进行了数值模拟，结果对比和分析表明，基于非结构化网格的三维MT矢量有限元不仅消除了节点型有限元的伪解，而且具有很高的计算精度和速度，有广阔的应用前景。3、根据Sobolev函数的向量空间和Hemlholtz空间的分解，推导出基于残差的三维大地电磁矢量有限元后验误差估计公式，为三维大地电磁自适应矢量有限元数值模拟的实现奠定了基础。4、在完全非结构化四面体单元剖分及优化基础上，结合三维大地电磁矢量有限元后验误差估计公式，提出了基于非结构化网格的三维大地电磁h-型自适应矢量有限元计算策略，保证了对复杂大地电磁模型数值计算的精度和可靠性。5、实现了基于非结构化网格的三维大地电磁h-型自适应矢量有限元计算流程，对典型模型和国际标准电磁模型进行了数值模拟。

According to different characteristics of CMM error distribution, single error measurement model is built by cubic spline principle and double cubic spline function.

根据三种类型三坐标测量机误差分布的特征，提出了利用三次样条原理和双三次样条函数建立测量机一维和二维相关性误差模型。

This paper presents the design of the software and hardware of the microcomputer aided DGF5 Peak Inductive Transduser data collecting system,analyzes the important error sources,works out the method of using cubic spline function to modify the system error,and puts forward the relative software.

介绍了用IBM－PC系列微机与DGF－5型电感测微仪构成的数据采集系统的软硬件设计，对系统的主要误差源进行了分析，提出对系统的综合误差用三次样条函数拟合补偿的方法，并设计了相应的软件。

The method was proposed to compensate the residual cumulative error in the project, and the optical frequency multiplication effect on residual cumulative error is analyzed, and the model of laser heterodyne interferometric fast ultra-precision measurement is proposed.

为实现激光外差干涉快速超精密测量，通过分析测量棱镜三维运动对激光多普勒频移的影响，针对传统激光外差干涉测量模型存在的原理性残余累计误差，而且误差存在累计现象，提出了在工程中补偿残余累计误差的方法。

Then the theory error of three points Gauss fitting method is analyzed and the theory error curve is given.

以三点高斯拟合算法为例，分析了算法的理论误差，并给出了理论误差曲面。

Error-correction is more popular used to check error in data communication.It can detect whether packet has been cor-rupted during transport by cyclic redundancy check.

术创新1概述在数据通信中，由于随机噪声和干扰等因素的影响可能会产生数据传输错误。

In theory, there is no error for the refractive seismic exploration by permuting the focus and the cymoscope. In some especial condition, it would be the only choice because that refractive seismic exploration is needed, but the error can not be neglected be cause of various factors.

在理论上，用源检互换的方法进行折射地震勘探是没有误差的，在某些特殊条件下无法铺设检波器而又必须进行折射地震勘探时它也是唯一的选择，然而，在实际工作中，由于各种因素的影响，其误差是不可忽略的。

A general form of D-FOG has been proposed in order to lower the bias drift and several forms of that have been studied:(1) The Blake type in which a depolarizer is inserted between the polarizer and coil-coupler of D-FOG can suppress the intensity error but not change the magnitude order of the amplitude error.(2) The type with two Lyot depolarizers added in the ends of sensing coil can suppress efficiently the both errors.

为了减小D-FOG漂移，作者提出去偏陀螺的一般形式，并分析其中几种重要形式：（1）在偏振器与环分束器之间插入Lyot去偏器的Blake形式，可以有效地降低强度误差但不改变振幅误差的量级；（2）在传感环两端各插入一个去偏器可以有效地抑制这两种误差。

A debugging priority method [46] was thus proposed to speed up the error searching process in the derived error candidate set.

然而，给一个错误候选者集合后，在内部找到真正的设计错误依然需要花上不少时间。

Many will continue to choose to live in duality and in conflict.

许多人将继续选择活在二元对立性和冲突中。

I find that students of the University of Physical Education all wear sportswear at first sight.

我发现：体育大学的学生乍一看，都是穿运动衣，大家都一样