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Artificial neural networks has been widely used in pattern recognition, signal and information processing, adaptive controlment, and many other fields because of its self-organize ability, self-adapt ability, robustness and fault tolerance, and which are coming from its parallel processing structure and distribute information storage. But at the same time, they also bring some problems such as the difficulty of getting optimized topology structure and the great training time-consuming, which restrict its reality use.

人工神经网络的并行处理结构和分布式信息存储带来的自组织性、自适应性、鲁棒性和容错性,使得它们在实际应用中已表现出了强大的生命力,成为当今研究的热点之一,已经广泛的应用于模式识别、信号与信息处理、函数逼近、系统辨识和自适应控制的诸多领域,但同时带来了的最优拓扑结构难以确定,训练耗时巨大的问题,也限制了神经网络在实际中的应用。

A method of building the fuzzy model with constant-value consequence for MIMO complex processes is presented by means of the iterative learning algorithm of fuzzy model consequent parameters, and the convergence of the iterative learning algorithm is proved according to the convergent theorem of bounded positive-term series, moreover, the effectiveness of the presented fuzzy modeling method is also demonstrated by a simulation example.

深入讨论了常值后件模糊规则模型与映射的关系,并证明这种模糊模型所表示的模糊系统具有在紧集上逼近任意实值连续函数到任意精度的能力,为将这种模糊模型用于复杂过程的建模和控制作了一些理论准备。

A sufficient condition of quadratic stability for the impulsive and switched systems is given with a switching law by way of convex combination and single Lyapunov function.

在有限个备选状态反馈控制器的条件下,利用凸组合技术和李雅普诺夫函数等方法,给出脉冲切换线性广义系统二次稳定的充分条件及切换律的设计。

The paper discusses a generalized non-autonomous discrete relaxed system in time optimal control with generalizing the target constraint from the point curve to convex set hyper curve.

本文讨论了一类广义非自治离散松驰系统的时间最优控制问题,将R中点曲线的目标约束推广为凸集值函数的超曲线约束。

According to induced response method, the expression in frequency domain of pressure response at the end of pipeline is derived using impulse response method and convolution theorem. The expression indicates that that transfer function is only related to the characteristics of pipeline system and the Fourier transform of flow variable only depends on the operating characteristics, and the pressure response in frequency domain is linear with the Fourier transform of flow variable.

基于激励响应法,应用脉冲响应方法和卷积定理得出了管道末端压力响应在频域中的表达式,此式表明:传递函数只与系统的特性相关,流量变量的傅立叶变换只与操作特性相关,且压力频域响应与流量变量的傅立叶变换为线形关系,根据此式在理论上能够得到管道泄漏点的重要信息。

This study uses the height function to track the free surface, and the body-fitted coordinate system is used to generate a coordinate surface coindent with the boundary contours in the physical plate.

为求解本研究的流动现象,除了以高度函数法追踪液面外,并以物体嵌合座标系统克服翼形的不规则形状,同时采用SIMPLE数值法来处理整个数值运算过程,并配合交替方向隐式A.D.I。

In this paper, genetic algorithm has been used in fuzzy controller design, us ing this new method, fuzzy membership function can be optimized automatically ac cording to known fuzzy control rules.

将遗传算法引入到模糊控制器的设计中,根据已知的模糊控制规则,对模糊隶属函数自动寻优。以工业过程控制为对象,针对具有纯滞后二阶系统进行了计算机仿真,并进行了对比性研究。

Based on the transfer function of plant, the corrector can be designed in servo system.

由被控对象传递函数,可直接进行随动系统校正网络设计。

A system and method for accurately determining time of arrival using a mathematical model that mimics a correlation function.

使用模仿一相关函数的数学模型用于精确地测定到达时间的系统和方法。

The experimental system extract the low-level features of images such as HSV histogram, the texture got from coexistence matrix, color correlogram, and according to the characteristic of our image database, design the evaluation function such as the average rank ratio to evaluate and compare the performance of different integration of different features including semantic, and validate the active effect of feedback using experiment results.

该原型系统提取了HSV直方图、共生矩阵纹理、颜色相关图等底层特征,同时根据图像数据库的特点,设计了平均位置比值等评价函数对语义特征与底层特征的各种结合的检索性能进行了比较分析,并对反馈效果进行了实验验证。

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