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The system error at the type of figure is analyzed and inspection mean of the error system is studied.

最后修改观测数据的模型,结合此模型研究系统误差和随机误差的评定指标。

The Mean Square Error of Neutral Network dropped to 0.001 after 242 training epochs.The maximum relative error of simulated value...

在均方差为0.001的条件下,网络于242次训练后收敛,模型训练的最大相对误差为2.58%,预测值的最大相对误差为10.08%,表明该模型具有良好的预测和仿真能力。

The errors and area limits caused by the lunar curvature were avoided in this model established under the Selenocentric Orthogonal Coordinate System, the accidental errors of exterior line elements were reduced by orbit fitting and interpolation, the polynomial orders of systematic errors in satellite orbits were decreased with their expression in the flying coordinate system moving and rotating with satellites, and the reliability of exterior orientation solution was enhanced under the condition of sparse and low accuracy control points by appending constraint of orbit and attitude parameters.

该模型通过在月心直角坐标系进行影像空中三角测量来消除月球曲率引起的误差和测图范围限制,通过轨道形状的拟合与插值来减小摄影时刻轨道位置的偶然误差,在飞行坐标系中建立轨道修正模型来减少定向参数的数目,对轨道和姿态增加约束条件来提高月面控制点数目稀少及精度低条件下外方位解算的精度与可靠性。

The average of relative error of SVR model was 0.0622 that was less than those of multiple linear regression and partial least squares methods.

所得SVR模型的预测相对误差为0.0622,小于多元线性回归和偏最小二乘法,以及文献报道模型的预测相对误差。

This paper brings up with the theory of Virtual Coordinate Measuring System. The basic theoretic models of the virtual coordinate measuring system are given. This theory of virtual coordinate measuring system makes use of the principle of Time-Space correspondence and turns the time pulses into spatial displacement. The virtual coordinate measuring system can take the place of the scale system in traditional instruments, which has the disadvantages of high cost and difficulty ofproduction.

本文同时提出并建立虚拟坐标测量系统理论;该理论从传统的测量仪器出发,将传统仪器的实物标尺系统虚拟化,克服了实物标尺系统加工制造困难,及造价高等缺点,将硬件结构简化;本文提出并建立初步的虚拟坐标测量系统模型,并在三坐标测量机上建立了一维虚拟坐标测量系统的实验模型,初步分析系统的系统误差与其随机误差源。

A new switching scheme to the gain of variable structure control signals is proposed. The following important open problems in standard VS-MRAC and MRAC are solved by using the scheme: 1 . a prespecified transient and steady-state performance index for tracking error can be achieved without requiring any information about the plant high frequency gain sign when relative degree of modelled part of plant is one, and 2 . it is shown that as long as the performance indexes are guaranteed for the auxiliary errors, each of which in dynamics is a sub-system with relative degree one, the tracing error will converge to a small residual set in a prespecified transient time when relative degree of modelled part of plant is greater than one.

提出了一种控制增益可切换的变结构自适应律,解决了如下变结构模型参考自适应控制(包括基于调参律的模型参考自适应控制)理论研究中长期没有解决的问题:当对象建模部分相对阶为1、高频增益符号未知且存在非线性输入扰动和未建模动态等情况下,系统跟踪误差可满足预先给定的动态和稳态性能指标;当对象建模部分相对阶大于1且存在非线性输入扰动和未建模动态时,可保证系统跟踪误差在预先给定的过渡过程时间内收敛到一个残差集中; 5。

In this paper, we present a class of equation model for image denoising and edge enhancement. The model is based on robust statistics error norm and variational theory.

本文基于稳健统计误差模函数及变分原理构造了一类用于图像去噪、增强边缘的方程模型,对相关参数进行了分析,设计了该方程有限差分数值求解的并行算法,并对分块模型及实现过程进行改进,提高了并行效率,在此基础上完成了并行数值实验,并对结果就误差模选取、并行效率等方面进行了分析。

In this paper, we present a class of equation model for image denoising and edge enhancement. The model is based on robust statistics error norm and variational theory. By analysing the parameters of the equation and designing the methods of module partitions, the numerical experiments reach a good result and the parallel efficiency has been improved remarkably with finite difference method.

本文基于稳健统计误差模函数及变分原理构造了一类用于图像去噪、增强边缘的方程模型,对相关参数进行了分析,设计了该方程有限差分数值求解的并行算法,并对分块模型及实现过程进行改进,提高了并行效率,在此基础上完成了并行数值实验,并对结果就误差模选取、并行效率等方面进行了分析。

A large number of commercial data were simulated, and the high performance of the soft-sensor is demonstrated by the fact that the maximum relative error, relative root mean square error and tracking precision are 2.68%, 0.17% and 0.9569, respectively.

针对大量工业数据,进行仿真计算,得到模型的最大相对误差、相对均方误差和跟踪性能指标分别为2.68%、0.17%和0.9569,说明该软测量模型具有良好的预测能力和跟踪性能。

As far as the seven kinds of interpolation approaches are concerned,the precision of ordinary Kriging method is the best one,and the error of statistical model is relatively high,of which the relative error reaches to 9.041%.

在7种插值算法中,采用指数模型模拟半异矩的普通Kriging法计算精度较高,统计模型的误差最大,其最大相对误差为9.041%。

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推荐网络例句

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。