逼近

Keywords : city housing level; comprehensive evaluation; index system; uniform approximation

本文从城市居住水平的特点出发，认为可以用一致逼近方法对其进行综合评价。

The optimal or nearly optimal uniform approximation can be obtained for degree reduction of NURBS surfaces by using the method.

实现了NURBS曲面降阶的最佳或近似最佳一致逼近。

Firstly, we prove a relation between moment condition and accuracy; Secondly, a uniform estimate for interpolation approximation is obtained; Finally, some examples are provided.

首先给出精度与矩条件的关系；其次证明插值逼近的一致估计；最后是例子。

In a MTD radar signal processing system,a MTD filter based on Chebyshev uniform approximation is designed,and its hardware implementing method is discussed.

在某MTD雷达信号处理系统中，采用切比雪夫一致逼近法设计MTD滤波器，讨论其硬件实现方法。

Those fuzz systems, their structural characters, the basic approximation properties and uniform convergent properties of them are compared by using the fuzzy basis functions.

利用模糊基本函数形式化描述模糊系统的方法，比较了它们的结构特征，以及由此导出的模糊推理系统的各种逼近性质。

Firstly, we prove a relation between moment condition and accuracy; Secondly, a uniform estimate for interpolation approximation is obtained; Finally, some examples are provided. The paper is organized as follows: In Chapt...

论文按如下方式组织，第一章给出本文所用的记号、概念、研究背景和主要结论；第二章给出一元插值逼近的相关结果；第三章将第二章的结论推广到二元情形。

The uniform approximation of normal wavelet neural network and the robust analysis of wavelet neural networks of the combination of Sigmoid function are detailedly introduction; Multiple model failure detection based on wavelet neural network is demonstrated detailedly; At last, the failure diagnosis results of aerocraft is present seperately by employing wavelet neural network and BP neural network, and the fault diagnosis of areocraft system by wavelet neural network is achieved.

论文以小波神经网络为研究对象，提出了一类新的加权小波基，分析证明了加权小波基的诸多良好特性；对于常见小波神经网络的一致逼近特性、S型函数组合小波神经网络的鲁棒性分析、多模型小波神经网络的故障检测等问题给出了详细的论证；最后，针对歼击机的常见故障问题，分别给出了应用小波神经网络和BP神经网络的故障诊断结果，实现了小波神经网络对飞机系统的故障诊断。

In this paper,the problem of the rate of uniform convergence in the normal approximations of the Von Mises Statistics will be considered.

本文讨论了Von Mises统计量向正态逼近的一致收敛速度问题，在核函数仅满足二阶矩条件下，给出了上述收敛速度的上、下界，所得结果改进了 [2 ]中相应结论

In this paper, the problem of an iterative sequence approximation a common fixed point for nonexpansive non-self mappings is studied in real uniformly convex Banach space, then we obtain a strongly convergence theorem.

在实一致凸Banach空间中，讨论了关于非扩张非自映射序列逼近公共不动点的问题，获得了一个强收敛定理，改进和推广了现有文献的一些相应结果。

For the digital filter design problem, the mathematics are complicated by the approximation being defined on the unit circle.

数学问题中固有的频域滤波器设计的问题是逼近理想的复杂的频率响应函数的HD的一个合理的传递函数的H就一个Mth度的分子和一个第N次度标准值复杂的变量沿着单位圆的Z = ejw 。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。