查询词典 Bessel functions

In this method, two fuzzy logic systems are used to approximate unknown functions, and an error compensator is designed to reduce the influence of approximation error on tracking accuracy.

针对一类非线性系统提出了间接自适应模糊控制方法，该方法用模糊逻辑系统逼近未知函数，并设计误差补偿器来减少逼近误差对跟踪精度的影响。

Wang-type fuzzy logic system and its functional approximation ability are researched deeply, A class of Gauss-type fuzzy logic system is presented and studied What it defers from Wang-type fuzzy logic system is its using Gauss fuzzifier The analytical expression of this fuzzy logic system is derived detailed Its universal approximation theorem for nonlinear functions is proved by StoneWeiestrass theorem.

通过对两类模糊系统作为非线性辨识器的仿真研究显示出高斯型模糊逻辑系统在抗数据干扰方面比Wang型模糊系统有优势。对非线性动态系统的辨识问题，借助递归神经网络的研究成果，提出一种基于递归网络结构的自适应模糊逻辑系统和参数学习算法。

By the best approximation theory, it is first proved that the SISO (single-input single-output) linear Takagi-Sugeno fuzzy systems can approximate an arbitrary polynomial which, according to Weierstrass approximation theorem, can uniformly approximate any continuous functions on the compact domain.

借助于最优逼近理论，证明了线性SISO TS模糊系统可以逼近任意一个多项式，然后以Weierstrass逼近定理为桥梁，证明了该模糊系统可以以任意精度逼近一个任意的连续函数，从而得到了该模糊系统万能逼近性的一个新的充分条件。

Choosing right functions and methods to describe objects in real life is one of the most important subjects of Approximation Theory and evenApplied Mathematics, and has extensive applications.

选择合适的函数和方法来描述和刻画实际对象是逼近论甚至整个应用数学的一个重要课题，在实际中有着重要和广泛的应用。

The study of direct and inverse theorems on the approximation of linear operators to functions in normed linear spaces is an important subject in the approximation theory. It is significant in theory and application.

线性算子对赋范线性空间中函数逼近正逆定理的研究是逼近论中重要的研究课题之一，在理论和实际应用上都具有重要的意义。

Spline functions are importan tools in approximation theory and numerical analysis.

多元样条是计算数学与函数逼近论领域里重要的工具。

Neural networks is viewed as a universal approximator for nonlinear functions, but there are some fatal bugs with it, so it is necessary to find another method more right for neutralization process.

神经网络是目前中和过程非线性系统建模中常用的一种建模方法，但本身具有一些难以克服的缺陷降低了它的发展和应用效果，因此寻求更适于中和过程非线性系统建立模型的理论及方法是十分必要的。

The common assumptions on the time-delays of the system are not required; only one fuzzy approximator is needed for compensating all the unknown functions. Thus, the structure of the controller is simplified.

该方法取消了对系统时滞常做的假设，仅采用一个模糊逼近器便使所有的未知函数得到补偿，简化了控制器的结构。

This holds true for other functions such as crop productivity, arable land, transportation, and so on.

这一点，对于其他的一些函数，比如粮食的生产力、耕地、交通等等，也同样适用。

Methods Renal functions and serum lipids were measured in 70 patients with ARAS. They were analyzed and compared with those in 62 healthy controls.

选取动脉粥样硬化性肾动脉狭窄患者70例，测定其血脂及肾功能，并选择62例肾动脉正常者为对照。

I'm going tor her!

我这就去救她！

As rise are design to help keep a several toney , a brain chemical at continues lever.

SSRI被设计来帮助保持血液中的复合胺即在大脑中一个连续水平的化学物质。