误差条件

词组短语

error condition

与误差条件相关的网络例句 [注：此内容来源于网络，仅供参考]

The result shows that the mixed boundary condition can greatly reduce the calculation area without affecting accuracy of the solution.It is followed by the higher accuracy of Dirichlet boundary condition which makes the boundary error greater when measured points is near the boundary, so we must take a sufficiently large border region.The homogeneous boundary condition has relatively large error, but the use of non-triangle poles devices makes apparent resistivity calculation error become small, because of elimination of the effect on potential difference for the infinite boundary. In inversion, in order to save computing time, homogeneous boundary conditions are often used to perform finite element forward calculation.

结果表明，混合边界条件精度最高，可大大缩小求解区域而不影响计算精度，其次是Dirichlet边界条件精度较高，但测点越靠边界误差会越大，必须取足够大的边界区域，齐次边界条件的误差比较大，但如果采用非二极装置，通过电位差计算得到的视电阻率，由于无穷远边界对电位差的影响基本消除，视电阻率计算误差与混合边界条件下的接近，在反演中，为了节省计算时间，经常使用齐次边界条件进行有限元正演。

Based on the analysis of the mechanism of robot manipulators, a trajectory tracking controlling research model is first built up with ADAMS, and its mathematical model is formulated through the study of robot kinematics and dynamics. After the modeling errors are analyzed in practical robotic systems, a conception of centralized error is brought forward according to the theory of weighting functions. In the case of modeling errors' exist, the robotic uncertain model is derived by introducing an auxiliary control variable into inverse dynamic analysis. The control strategy of robust exponential convergence is applied to the robotic uncertain model, the applicable conditions and the applicable controller with this application are presented. The stable control effect under three main model uncertainties (parametric errors, joint disturbs, joint frictions) are systematically studied on the previously built research model. The problems of robust exponential convergence controller which often results in unstable output and so produces a large relative error when the input trajectory is in a small range are resolved by adjusting the control parameters based on the controller's structure.

本文在机械手的机械结构分析基础上，利用ADAMS建立了用于机械手轨线跟踪控制研究的机械手模型；通过对机器人运动学和动力学问题的研究，建立了机械手研究的数学模型；分析了机器人系统中模型误差的主要来源，根据加权函数法分析，提出了模型集中误差的概念；在存有模型误差的情况下，采用逆动力学结构并引入辅助控制量，由机器人误差模型推导了机器人非确定性模型；提出了采用鲁棒指数收敛法对上述机器人非确定性模型进行鲁棒镇定的控制策略，并给出了对机器人进行鲁棒指数收敛控制时系统不确定因素应满足的匹配条件；针对机械手研究模型，深入研究了鲁棒指数收敛控制器对机器人系统中常见的模型参数误差、关节扰动、关节摩擦等不确定因素的镇定控制效果；针对鲁棒指数收敛控制器易产生控制量振荡的问题以及在小范围内系统轨线跟踪的稳态误差过大问题，本文分别提出了基于控制器结构的控制参数调整法和基于轨线跟踪范围大小的控制参数分段切换法。

The results show that the model of the Kalman filter is feasible , and under the same error condition, it is more accuracy and robust than the Least square method.

对仿真结果的分析表明，该组合系统的Kalman滤波模型是可用的，它提高了北斗系统的定位性能，并且在相同的误差条件下，该算法与最小二乘法相比，其估计结果具有较高的精度和鲁棒性。

In this paper the effects of scanning truncation error, scanning position error, random amplitude and phase error, and multiple-reflection error in near-field antenna measurement are analyzed; error equations and the uncertainty of measurement are obtained through computer simulation; compensated techniques for reducing the effects of measurement errors in near-field antenna measurement are presented and the formula and arithmetic of phaseless near-field techniques are derived.

本文从解析法和数值仿真两个角度深入分析口面天线近场测量中扫描面截断误差、扫描面位置误差、随机幅相误差、多次反射误差等误差源对天线远场特性测量精度的影响，一方面从理论上给出相应的误差方程，另一方面建立误差分析模型，通过计算机模拟，得到不同误差条件下测量结果的不确定度，并介绍了减小这些误差的修正方法，推导无相位近场测量的公式和算法。

Without imposing any additional constraint or changing the error criteria, this dissertation extends the original CIM to solve the three dimensional LS-WMN problem (the weighted minimum number polygonal approximation problem with the line segment error criterion).

本文将其推广到三维情形，解决了三维〓范式下的LS-WMN问题（线段误差条件下的带权多边形曲线最佳逼近问题）。

In Chapter 2, we consider the error bound and the auxiliary problem algorithm for the generalized linear complementarity problem over a polyhedral cone: First, we give an absolute and a relative global error bound for GLCP and nondegenerate GLCP, respectively, and then we explore the properties of the solution set of the problem, based on which we establish another absolute and relative error bound for GLCP which is much exacter compared with the result above.

第二章主要研究了闭凸锥上广义线性互补问题的误差界及基于其上的一个求解GLCP的辅助问题算法：(1)给出了GLCP的全局绝对误差界和在有非退化解时的全局绝对误差界及其相对误差界；(2)对GLCP的解集结构进行了探讨，并利用得到的结果给出了GLCP的另一个全局绝对误差界和相对误差界估计；(3)我们提出了一个求解GLCP的辅助问题算法，并证明在适当条件下该算法具有全局收敛性。

The conditions to measure accurately and the principles to select parameters of the multi— probes EST method are proposed, and the theoretical research, computer imitation and the experiment on a machine tool prove that these principles and suggestion are necessary and effective. The influence of the initial value errors of the probes, the installation error of the probes system, and the remaining error caused by the radical error motion are analyzed quantitively on the measurement accuracy of the multi—probes EST method. The influence of the error caused by the probe's axes which is not in a plane and the perpendicularity error of the plane which the probe's axes is in to the stational axis are discussed on the measurement results.

结合理论分析，对这些EST方法进行了计算机仿真分析和研究，重点研究了这些方法的应用条件和误差分离精度，所得出的结论是：三测头法EST基本上能实现各项误差的完全分离，适于在位测量使用；二测头法在恰当地选择测头安装角的条件下，可以得到较高测量精度，适于大型零件圆度、圆柱度、径向圆跳动和全跳动的在位测量；对置两测头时域法可以在一定程度上改善单测头法测量精度，但对随机径向误差无能为力；对置两测头频域法存在严重的谐波损失。

The experiments were carried out to calibrate FDR in the lab and field, and calibration equations were verified by oven-dried method for soil samples obtained by augers. The result showed that good calibrating equations with average RMSE 0.023 m^3/m^3 were fitted in the lab, but they had poor RMSE 0.066 m^3/m^3 when used in the field. Other calibrating equations with average RMSE 0.026 m^3/m^3 were also fitted by indirect field calibration method, and they had good RMSE 0.026 m^3/m^3 when used in the field.

结果表明，室内试验获得了较好的模型参数，均方根误差平均达到了0.023 立方公尺/立方公尺，但是应用到田间条件下误差很大，均方根误差平均为0.066立方公尺/立方公尺；田间条件下也间接获得了较好的模型参数，均方根误差的平均值为0.026立方公尺/立方公尺，应用于田间时测定含水量的精确度较高，均方根误差的平均值为0.026立方公尺/立方公尺。

Exception or Negative - forcing error conditions in the system.

例外或负误差条件迫使系统。

The contact path of the rigid surfaces was also studied on the misaligned drive system.

本文还研究了有系统安装误差条件下的刚性齿面啮合迹。

与误差条件相关的网络解释 [注：此内容来源于网络，仅供参考]

consistency conditions：相容条件

3.3 基于相容条件(Consistency Conditions)判据的方法一般采用迭代法 ( Iterative Method )来利用其它模式取得的ATT MAP. 即先任意假定一个重建图像,然后代入ATT MAP反复做再投影和反投影,并逐步减小与原始投影的误差,直到衰减影响被减小到预定程度为止.

Correctness：准确度

①准确度(correctness)表示测量结果中系统误差大小的程度,是指在规定的条件下计量仪器的示值中所有系统误差的综合. 系统误差包括已确定的和未确定的两部分. 耒确定的部分可用系统不确定度(系统误差限)来表示.

error condition：误差条件

error compensation 误差补偿 | error condition 误差条件 | error control 误差控制

size error condition：长度错误码条件

size error 长度误差 | size error condition 长度错误码条件 | skeletal coding 骨架编码

mae：平均绝对误差

我们对条件方差进行单步向前预测,在此采用平均预测误差平方和的平方根(RMSE),平均绝对误差(MAE)和平均预测误差(MFE)三个衡量时间序列预测效果最常用的指标进行测量.

periodic error：周期误差

periodic boundary condition 周期边界条件 | periodic error 周期误差 | periodic filter 周期频率特性滤波器

periodic calibratin error：周期格值误差;周期性刻度误度

periodic boundary condition 周期边界条件 | periodic calibratin error 周期格值误差;周期性刻度误度 | periodic chain 周期链

respondent,conditioning：反应型条件作用

respondent behavior 应答行为 | respondent conditioning 反应型条件作用 | respondent error 回答误差

respondent error：回答误差

respondent conditioning 反应型条件作用 | respondent error 回答误差 | responder 反应者

Sampling error：取样误差

9、取样误差(Sampling error)样本统计量与相应的总体参数之间的差距. 10、随机取样 (random sampling) 从总体抽取样本的一种策略,要求总体中的每一个体被抽到的机会均等. 用随机取样法得到的样本叫做随机样本.11、变量(variable)是一种特征或条件,