近似模型

基于Euler近似模型方法的一类非线性网络化控制系统设计

Design for a class of nonlinear networked control systems based on the Euler approximate model method

利用支配关系的定义证明Pareto适应度函数判断非支配点的有效性，并在此基础上结合序列近似模型技术和启发式搜索算法研究了两种基于Pareto解集的多目标优化方法。

Two Pareto multi-objective optimization methods are put forward by combined the sequence approximate model technology and heuristic search algorithm .

纵向对称双硅栅薄膜MOSFET的等电位近似模型

Constant Voltage Model of Vertical Symmetry Double-gate MOSFET

根据Taylor级数理论得到潮流跟踪动态计算的近似模型。

The Taylor series theory was used to estimate the approximate solution of the dynamic PFT model .

本文提出一种新的近似模型DT网格动态优化方法，作为二维DT模型基图像编码方法的改进型方案。

This paper presents a modified Delaunay triangulation model based image coding method .

为了考虑Kriging模型各向异性，对Kriging近似模型中变异函数参数进行了优化设置。

To order to consider anisotropy in Kriging , the parameter of relational function is optimized .

以RBF神经网络为基础，提出了基于近似模型的编织复合材料涡轮导向叶片的结构与材料一体化优化设计方法。

An integrated optimization design method of braided composites turbine guide vane based upon structure and material using RBF neural network model was proposed .

由于文中所述四种模型是工业过程常用的近似模型，调节器可以从P推广到PI和PID。因而，本文提出的方法具有一定的实际意义。

Because the four models described here are common approximate ones , and the controller used can extend from P to PI and PID , the method proposed is effective in practice .

以某口径复合材料身管为例，基于所建立的Kriging近似模型进行了结构近似分析，并将分析结果与有限元计算结果进行比较。

On the basis of the Kriging approximate model , the approximate analysis for the composite barrel was conducted .

用有效质量近似模型讨论了量子尺寸效应和介电限域效应对纳米Ge颗粒发光特性的影响。

The effective mass approximation model based on the quantum confinement effect and the dielectric confinement effect are suggested to discuss the observed optical experimental details .

将遗传算法与改进后的Kriging模型结合，基于近似模型对系统进行全局最优化。

Additionally , using GA with the improved Kriging model the system can be globally optimized based on the approximate model of the system .

该文采用上述情形的多普勒频率的分段一阶近似模型，在此基础上，提出一种基于推广RELAX算法的线性调频信号参量估计方法。

In this paper , the first order approximate model of Doppler frequency is assumed , and an algorithm based on the extended RELAX method is proposed to estimate the parameters of chirp signals .

采用动力稳定性分析方法分析管线的稳定性，水动力载荷采用Fourier系数模型方法计算，基于近似模型技术利用MonteCarlo仿真对稳定性进行可靠度评估。

The stability is analyzed using the dynamic stability method . The hydrodynamic loads are calculated with the Fourier coefficient model method . Monte Carlo simulation is used to estimate the reliability of stability with approximation model .

Perona和Malik给出的离散格式是原Perona-Malik模型的近似模型的离散形式。

The discretization scheme given by Perona and Malik is the approximation of the Perona-Malik Model .

论文在简述基于Laguerre函数近似模型的自适应预测控制原理、算法的基础上，将现有的仅适用于开环稳定系统的预测控制算法进行扩展，提出一种增广的Laguerre函数模型自适应预测控制算法。

A brief introduction is presented of adaptive predictive control based on a Laguerre function approximate model , and an extended predictive control algorithm is developed .

利用IOS近似模型，计算了星际分子云条件下E型CH3CN-H2含超精细能级的的碰撞跃迁速率系数。

IOS ( infinite order sudden ) approximation , the hyperfine collisional transitional rate coefficients of E-type CH3CN-H2 have been calculated under the conditions of interstellar molecular clouds .

针对Kriging近似模型的特点，采用最小偏差拉丁超立方试验设计方法，同时为了考虑噪音参数的波动，把可控因子和噪音因子安排在田口试验设计内外表中。

The minimum bias latin hypercube design is used in Kriging metamodel . At the same time , key control and noise factors are batched in the Taguchi inner and outer table .

利用Delaunay三角形化的良好特性，仅编码由少数象素组成的特征图象就可以几乎不失真地恢复出描述得到的近似模型。

Owing to the properties of Delaunay triangulation , an approximative model obtained from the description can be recovered with almost no degradation by coding the feature image composed of a few pixels .

分析了根据stop-go模型和一阶近似模型补偿回波引入的补偿误差。

The compensation error caused by the ' stop-go ' model and the first order approximate model is analyzed .

这一条件使依据闭环Euler近似模型判定闭环精确离散时间模型稳定变得简单。而为保证这一条件成立仅需系统闭环向量场满足Lipschitz条件。

This condition make it easier to judge the stability of the exact discrete-time model with the closed-loop Euler approximation , which just requires the closed-loop vector filed of the system to meet the Lipschitz condition .

对比分析Kriging和多项式响应面两种近似模型对于车门侧撞响应的拟和误差，表明用Kriging模型构建车门抗撞性近似模型是合适的。

The error of kriging and polynomial response surface models for approximating car door side impact response is contrasted . The research shows that kriging is presented as an alternative method for constructing car door structural crashworthiness approximation .

应用时间相关的局域密度近似模型研究了Na2价电子对超短激光脉冲的响应。

The linear dynamical response of the valence electrons of Na 2 is investigated using time dependent local density approximation with frozen ionic positions .

采用非支配遗传算法（NSGA）对轴承进行基于近似模型的多目标优化，降低了轴承的机油流量和摩擦功耗。

Multi-objective optimization of the bearings based on approximation models was conducted using Non-dominated Genetic Algorithm ( NSGA ) . Oil Consumption and friction loss of the bearings were reduced .

Konno-Suzuki模型是证券组合优化均值方差模型的一个新的近似模型。H。

Konno-Suzuki Model presented by H. Konno & K. Suzuki is a new approximative model of mean-variance model of portfolio optimization .

推导了成像过程中雷达回波的一阶近似模型和stop-go模型的适用条件。

The application conditions of the first order approximate model and ' stop-go ' model have been deduced in the process of imaging . 4 .

然后分别采用D-Optimal设计、Taguchi设计和均匀设计选择设计点，通过多机并行计算完成高超声速巡航飞行器性能分析。根据分析结果，构造响应面近似模型。

After employing D-Optimal design , Taguchi design and uniform design methods to select design points respectively , the vehicle performance is analyzed via parallel computation , corresponding response surface approximation models are constructed based on performance analysis results .

通过在投影空间中的基变换，导出了一种基于广义正交多项式（GOPs）展开的线性时变系统的新的近似模型。

In this paper , a new approximated model for linear time varying systems is deduced via general orthogonal polynomials ( GOPs ) expansion by basis transformation in projection space .

响应近似模型分别采用了二次多项式和kriging方法来构造，结果表明由本文设计的前后体外形结构简单，不仅能确保推进系统的工作效率，而且具有更好的气动性能。

The quadratic polynomials and Kriging method are employed to construct the response surface separately , Numerical results indicate that the forebody and afterbody designed by us is of simple configuration , not only can it ensure the efficiency of propulsion system , but also have a better aerodynamic performance .

为提高近似模型精度，本文以Chebyshev多项式的零点作为采样点构造高阶多项式回归模型，分别提出了CTP和CCM两种采样方法。

To improve the approximation accuracy of model , the zeros of Chebyshev polynomial are used as the sampling points to construct the high order polynomial regression model , and two sampling methods which are Chebyshev tensor product ( CTP ) and Chebyshev collocation method ( CCM ) are proposed .

本文在传统的岩石波速空间平均模型（Voight模型，Ruess模型，Hill模型和几何平均模型）的基础上，提出了一种极限近似模型。

In this paper , the author puts forward the limit approximation model in computing space average of rock wave velocity on the basis of four traditional models like Voight model , Ruess model , Hill model and geometry average model .