非线性特性

X射线成像系统的非线性特性

Non-linearity characterization of X-ray imaging system

本文采用神经网络方法建立了非线性特性的时间预测模型，其算法使用的是经过改进的BP（Back-Propagation）算法。

By using Neural Network the time-predict model full of non-linearity was established and the improved BP ( Back-Propagation ) Algorithms was introduced in this work .

C（60）－AALB膜光学三次非线性特性及机理的研究

Third-order Nonlinear Optical Effect and Mechanism in C_ ( 60 ) - AA LB Films

带一类自适应非线性特性的变步长BP学习算法

BP Training Algorithm of Alterable Pace with a Class of Adaptive Nonlinear Property

利用非线性特性改进PID控制律

The improvement of PID control law by using nonlinearity

ZnO压敏电阻小电流区非线性特性的机理分析

Investigation of Nonlinear Characteristics of ZnO Varistors in Smalll Current Range

椭圆波导FEM放大器的非线性特性研究

Nonlinear study of the elliptical wave-guide FEM amplifier

介绍了Logistic混沌模型在MATLAB基础上的模拟实验，研究了若干重要的非线性特性。

Analog experiments of Logistic chaos model on MATLAB have been introduced , in which some nonlinear characteristics have been researched .

然而，随着桁架式Spar平台大幅度的偏移，非线性特性急剧增加。

However , the nonlinearity increases drastically when larger excursion happens .

Josephson效应非线性特性的研究

The study of nonlinear characteristic on Josephson effect

如何定量地描述PA非线性特性及其对通信系统的影响、如何设计线性PA已成为当今的研究热点。

How to describe quantitatively the PA nonlinear effects on communication system and how to design a linear PA are becoming the research hotspots .

在单晶片CdSxSe（1－x）上的非线性特性的研究

Study of Nonlinear Properties in Mono-crystal CdS_XSe_ ( 1-X ) Films

针对电励磁双凸极无刷直流发电机非线性特性，研究了非线性PI励磁控制方法及设计方法，给出了一种易于工程实现的非线性PI励磁控制算法。

The nonlinear PI excitation control algorithm , with the nonlinear characteristics of the doubly salient electromagnetic brushless DC generator considered , is developed and design method given .

传统的均衡器一般是线性均衡器（LTE），但当信道呈现一定的非线性特性时，LTE的性能会下降。

Traditional equalizer is the linear transversal equalizer ( LTE ) which has poor performance when the communication channel has nonlinear characteristics .

为了建立工业污水pH值中和系统的正模型，研究了具有大滞后非线性特性的加药中和过程。

In order to establish a positive model of pH value control , the process with severe non-linearity and serious lag of neutralization action was studied by adding medicine in an industrial waster water neutralization control system .

光子晶体光纤（POF）与普通光纤在光纤结构、单模特性、色散特性和非线性特性等方面有着显著的差别。

Photonic crystal fibers ( PCF ) are quite different from standard optical fibers in fiber structure , mode property , dispersion and nonlinearity .

CdSeS量子点的光学非线性特性研究

Research on optical nonlinear properties of CdSeS quantum dots

横向静载荷试验H-X曲线非线性特性分析

Nonlinear characteristics analysis of the h-x curve of lateral static load test

在系统模型中考虑了TCSC的动态过程，同时保留了系统的非线性特性，运用自适应增益控制律进行参数的实时估计。

The dynamic process of TCSC is considered in the system model and the nonlinear characteristic is reserved . An adaptive gain control law is applied to real-time para-meter estimation .

PZTS凝胶玻璃的结构及光学非线性特性

Structure and Optical Nonlinearity of PZTS Gel Glasses

本文采用反射式Z-扫描方法研究宽带半导体可饱和吸收镜（SESAM）的非线性特性。

The nonlinearity of the semiconductor saturable absorber mirror ( SESAM ) was studied with the reflection Z scan technique .

基于混沌动力学系统相空间的延迟坐标重构及人工神经网络的非线性特性。研究了采用基于自适应投影学习算法的径向基函数网络对实测的EEG信号进行预测。

Based on the delay time phase reconstruction of the chaotic dynamical system and the nonlinear characterization of the neural networks , the prediction of factual EEG signals were investigated by using the radial basis function neural networks with the adaptive projective learning algorithm .

其次，考虑接触非线性特性，建立了旋转细长梁动力学三维有限元分析模型，采用Newmark积分法，建立了旋转细长梁动力学分析方法。

Second , according to the nonlinear character of contact set up dynamic three-dimensional finite element analysis model of rotating slender beam , adopting Newmark integration method , established the analysis method of rotating slender beam .

针对电力系统实际负荷以及直流系统本身的非线性特性，在微分代数模型的基础上，将M导数、M括号以及MIMO微分代数系统反馈线性化技术运用到交直流并联系统非线性控制器设计中。

The M derivative 、 M bracket and MIMO feedback linearization based on differential algebraic models are introduced to the design of nonlinear controller for parallel AC / DC power system in view of the nonlinearity of power loads and HVDC in real power systems .

针对电力系统非线性特性，采用反馈线性方法，以改善电力系统暂态稳定性为目标，应用线性二次型最优控制理论探讨了TCSC和发电机励磁系统的分散协调控制规律。

Aimed at the nonlinear characteristic of power system , a decentralized linear optimal coordinated control law about TCSC and excitation system of Turbo-generator is finally founded based on the feedback linearization method and linear quadratic optimal control theory .

其次，针对防滑刹车系统的非线性特性及强干扰，首次提出了飞机防滑刹车系统自适应神经模糊推理系统（ANFIS）控制算法。

Secondly , in view of nonlinear character and strong interference of outside , it is the first time in the paper that ANFIS ( Adaptive Nerve Fuzzy inference System ) is adopted in anti-skid braking system of airplanes .

提出了一种新的基于Poincare平面映射与盒子数法相结合的计算系统非线性特性区域和分维数的算法。并采用该算法对系统响应分维数进行了计算。

On the basis of combining Poincare map and box dimension method , a new algorithm for calculating nonlinear scope and fraction dimensions of systems is proposed here and the fraction dimension of the response is calculated with the algorithm .

由于控制阀的非线性特性使得本实验中的液位对象具有时滞弱非线性特性，常规DMC算法控制存在明显的模型失配问题并影响了系统的控制性能。

Due to the nonlinear feature of the control valve , the water-level plant in this experiment can be described with a feeble nonlinear system with pure time-delay . So there exists model mismatch problem , and the system control performance is affected when using general DMC algorithm .

近年来，针对控制对象为线性系统的NCSsFDD的研究已取得较多成果，而实际对象往往存在着本质上的非线性特性，因此针对非线性NCSs的研究具有重要的应用价值。

Recently , many achievements have been made on FDD of NCSs in which the control objects are linear . However , many virtual nonlinear characteristics exist in really objects widely ; it has important application value on the research on nonlinear NCSs .

给出了在相干匹配滤波系统中利用Ce∶KNSBN光折变晶体非线性特性实现图像边缘增强光学相关模式识别的理论分析和实验结果。

The theoretical analysis and experimental results of real time edge enhanced optical correlation pattern recognition via a Ce ∶ KNSBN photorefractive crystal in the coherent matched filter system are given . The full width at half maximum ( FWHM ) of the auto correlation peak is decreased 75 % .