approximation theory中文是什么意思

• 逼近理论
• 近似理论
• 近似值理论

• approximation    n. 1.接近；近似。 2.【数学】近似值。 3.概算， ...
• theory    n. 1.理论，学理，原理。 2.学说，论说 (opp. ...
• journal of approximation theory    近似论杂志
• second-order approximation theory    二级近似理论
• theory of spline approximation    样条逼近理论
• transonic approximation theory    跨音速近似理论
• approximation    n. 1.接近；近似。 2.【数学】近似值。 3.概算，略计。 successive approximations 逐次近似计算法。 be a very close approximation to 很接近于…。
• approximation approximation    近似，逼近
• acoustic approximation    声学近似
• adiabatic approximation    绝热近似法
• allowable approximation    容许近似值
• alternative approximation    交互近似法
• analog approximation    模拟近似
• analytical approximation    解析近似
• approx approximation    近似.略计
• approximation algorithm    近似算法
• approximation algorithms    第三十五章 近似算法
• approximation and correction    近似与校正
• approximation andcorrectionon    近似与校正
• approximation by excess    过剩逼近
• approximation by polynomial    多项式逼近
• approximation calculus    近似计算
• approximation coefficient    近似系数
• approximation conditioning    近似条件作用
• approximation curve    近似曲线

• Eno schemes are based on the approximation theory , which achieve high - order spatial accuracy by reconstructing piecewise smooth high - order approximate polynomial from the cell - averaging values . during the reconstruction , adaptive stencil technology , which automatically chooses the relatively smoothest stencil from all possible stencils , is adopted to guarantee essentially non - oscillation near the discontinuity
  Eno格式基于近似理论，采用自适应基架技术(即自动选取所有基架中相对最为光滑的基架) ，对网格平均值构造分段光滑的高阶多项式来获得高阶空间精度，同时保证格式在间断附近具有基本无振荡性质。
• Since time sectional scan method ( tssm ) acts as the dominant partner in the panel display , attention is drawn to the aspect in the drive methods . according to functions approximation theory , the method of complex merging approximation tssm which utilize multiple dissimilarity @ subclasses to achieve precision visual perception scale control is proposed . the comparison examples are given thereinto
  首先，针对这种在平板显示器显示技术方面占主导地位的驱动方法进行细致的研究，在此基础上根据函数逼近理论提出了平板显示器时间片扫描的混合拟合逼近驱动方法，该方法采用多组相异子集_ i ~ *完成高精度的符合视觉感觉的灰度级控制。
• The paper applies algebraic geometry , computational geometry , approximation theory to study the following problems : the nother type theory and the riemann - roch type theory of the piecewise algebraic curve ; the number of real intersection points of piecewise algebraic curves ; the real piecewise algebraic variety and the b - net resultant of polynomials
  本文应用代数几何，计算几何，函数逼近论等学科的基本理论，分别就分片代数曲线的n ( ? ) ther型与riemann - roch型定理；分片代数曲线的实交点数；实分片代数簇以及多项式的b -网结式进行研究。
• A drive method of unequalized clock counter in panel display which uses no dissimilarity @ subclass to achieve precision unequalized clock counter correction based on functions approximation theory is proposed . the new method is acquired based on the particular analysis results of the display drive design projects which adopted counter drive method in which the balance between the display image quality and the cost of drive circuit is given . finally , synthesis comparison examples are given
  针对目前以该方法为基础普遍采用的不同技术方案进行详尽的分析，根据分析的结果阐明了其在图像显示质量和驱动代价方面的优缺点，在此基础上基于函数逼近理论提出了一种平板显示器计数器非均匀时钟驱动方法，该方法在计数器时钟上采用非相异子集完成高精度的非均匀时钟计数器校正。
• In the section 2 , firstly based on the diffusion approximation theory , the temporal characteristics of the reflectance and the transmittance were theoretically analyzed in turbid tissues ; secondly , the curves were simulated that the intensity and the pulse shape of the time resolved reflectance and transmittance versus the absorption a , the scattering s and the anisotropy coefficient g in two different boundary conditions : semi - infinite turbid media and homogeneous slab ; at last , the optical properties can be derived from the curves ; in the section 3 , the conditions of ultra short laser pulses of different pulse - width and shapes has been theoretical analyzed and calculated , besides , the simulated the curves of the intensity and pulse shapes of the reflectance and transmittance in a homogeneous slab are obtained for use and future studying
  第二章中首先根据漫射近似理论对超短脉冲在以生物组织为典型的混浊介质中传输进行了理论分析，然后对两种边界条件下产生的漫反射、漫透射光脉冲强度和形状随各光学特性参数的变化情况进行了数值模拟，最后得到了混浊介质的光学特性参数与漫反射、透射脉冲强度与形状的关系曲线。第三章对不同形状和脉宽的脉冲光源入射到混浊介质中产生的漫反射、漫透射脉冲的强度和形状进行了理论分析和数值模拟，并将高斯脉冲与方波脉冲情况进行了对比，得到了各种情况的漫反射、漫透射脉冲强度、形状与各光学特性参数的关系曲线，这对从分析脉冲形状中提取介质的光学特性参数的信息有重要的意义。
• This paper discuss a modeling and predicting means for nonlinear systems proceeding from nonlinear systems modeling and predicting theory , whch is based on drnn model . this means overcomes the fact that ar model is used only in linear systems , at the same time it connects itself with approximation theory symbolic statistics and conjugate gradient algorithm , and formulate a system of large watercrafts motion modeling and predicting which is based on drnn model , and simulate it
  本论文从非线性系统建模与预报的理论及应用观点出发，系统地阐述了一类适用于非线性系统的建模预报方法? ?基于drnn模型的建模预报方法，克服了ar模型仅局限于线性的情况，同时结合逼近论、数理统计等知识，运用共轭梯度算法，提出并建立了基于对角回归神经网络的大型舰船运动建模预报系统，并进行了仿真。
• The various medium parameters have different influence on the reflection of the laser pulse . based on the diffusion approximation theory , the boundary condition of semi - infinite homogeneous media , the influence of the absorption a , the scattering s and the anisotropy coefficient g on the ultra short laser pulse of different pulse - width and shapes has been researched
  论文对超短脉冲在混浊介质中的传输进行了理论分析和数值模拟，并在不同脉宽的高斯脉冲和方波脉冲入射到混浊介质的漫反射、漫透射脉冲强度和形状进行了理论分析和数值模拟，得到了它们与各光学特性参数的关系曲线。
• Abstract : the theory of variable structure control of sing ular nonlinear control systems was considered based on the singular nonlinear systems itself by employing the method of geography , and gives the sufficient condition of existence of variable structure control and approximation theory of real sliding mode . it is shown that sliding condition only guarantee the slow - varying state of real sliding mode approach that of ideal sliding mode but not guarantee the fast - varying state of real sliding mode approach that of ideal sliding mode . the method applied for studying normal nonlinear system can not be used directely to singular nonlinear system
  文摘:利用几何方法，从广义非线性系统本身出发，研究了广义非线性控制系统的变结构控制理论，给出了系统存在变结构控制的充分条件及实际滑动模的近似定理.从所得结论可知，滑动条件仅能保证实际滑动模的慢变状态趋近于理想滑动模的慢变状态，而不能保证实际滑动模的快变状态趋近于理想滑动模的快变状态，研究正常非线性系统的方法已不能简单地被利用到广义非线性系统
• In this paper , the principles on vlsi realization of one - dimension cwt are expounded , and the relevant methods of the implementation are classified and compared with each other . and then , a novel method of implementing one - dimension continuous wavelet transform using switched - current circuit is proposed , in which the continuous wavelet transform is implemented by the parallel structure of biquadratic functions realized with switched - current circuits on the basis of approximation theory of network function
  本文阐述了小波变换vlsi实现的原理,并对相关的实现方法进行了分类和比较,提出了一种新的利用开关电流电路实现任意一维连续小波变换的方法,基于网络函数逼近理论,将连续小波变换转化为双二次函数并联电路结构,并用开关电流技术实现。