approximation theory meaning in English
逼近理论
近似理论
近似值理论
Examples
- 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。
Related Words
- approximation algorithm
- approximation principles
- traditional approximation
- approximation problem
- overall approximation
- numerical approximation
- mean approximation
- approximation process
- approximation points
- pauli approximation
- approximation technique
- approximation theorem
- approximation to complex functions
- approximation to distribution