描述函数法

基于描述函数法确定极限环个数问题的研究

Study of Describing Function Approach on Determining Limit Cycle Number

对以上两种情况分别用计及高次谐波的描述函数法进行分析，从而得到了系统渐近稳定和产生自振的充分条件。

For these two cases the improved describing function is used in analysis to obtain the sufficient conditions for asymptotic stability and for sustained oscillation .

基于MATLAB的非线性系统的描述函数法

The Descriptive Function Method of Non-linear System Based on MATLAB

阐述了协方差分析描述函数法（CADET）的主要内容，并结合一战术导弹非线性模型，展示了CADET法在导弹命中概率评估中的应用。

The main contents of Covariance Analysis Description Function Technique are interpreted .

运用描述函数法和推广的奈魁斯特稳定判据等工具设计了一个36W自激LC串联谐振并联负载型电子镇流器。

Then , the design of self oscilating electronic ballast using control tools such as description function , extended Nyquist criterion has been carried out .

协方差分析描述函数法（CADET）首次用于导弹遥控过程的精度分析。

Covariance Analysis Describing function Technique ( CADET ) algorithm was used to analyze the precision of missiles remote control process .

然后将速率限制环节置于人机闭环系统中，利用描述函数法对驾驶员诱发振荡（PIO）机理进行了研究。

With the rate limiting element in man machine closed loop system , we analyse the PIO using the method of describing function .

考虑地球非球形J2项摄动，采用协方差分析描述函数法与MonteCarlo仿真方法，分析了初始状态误差对远程交会的影响。

Considering the J2 perturbation , the nonlinear error analysis for the long-distance rendezvous trajectory with initial state errors is performed by using covariance analysis description equation technique ( CADET ) and Monte Carlo simulation .

协方差分析描述函数法在终端航空武器投放动态仿真研究中的应用

Simulation of covariance analysis describing equation technique for terminal weapon delivery

电液位置系统的非线性校正与描述函数法分析

Nonlinear Regulation of Electric-hydraulic Position System and Analysis with Described Function

非线性系统描述函数法的计算机研究

Study on Computer Based Operation for Describing Function Method of Nonlinear Systems

基于描述函数法的速率限制环节特性研究

Research on the Characteristic of Rate Limiting Element Based on Describing Function Method

描述函数法在电力系统中的应用

The Application of the Describing Function in Power System

非线性系统描述函数法研究的新途径

A New Approach on Describing-Function Method of Nonlinear Systems

非线性度变换的描述函数法分析

Analysis of nonlinear norm transform based on describing function

本文通过采用协方差分析描述函数法，对弹道误差变化规律进行了有效分析。

This thesis makes an efficient analysis on missile intercepting error based on CADET method .

数字控制系统的自振荡分析&离散描述函数法及其应用

Analysis of self-sustained oscillations in digital control systems & the discrete describing function method and its application

本文以反馈理论和工程上应用较广的描述函数法分析正弦振荡电路。

This paper shows how to analyse sinusoidal resonant circuits by means of feedback theory any description-function method .

将描述函数法用于确定微分方程极限环个数的问题是一个有意义的理论探索。

Using DF ( Describing Function ) in determining the limit cycle number of differential equation is a significant analysis try .

本文利用描述函数法，重点分析了条件反馈校正对自持振荡的抑制作用。

Using the describing function method , this paper gives emphasis to analyse the conditional feedback correction effect on restrain self-sustaining oscillation .

第一个是关于如何通过极限环分析建立描述函数法与相平面法之间联系；

The first one is about how to build the connection between describing function method and phase plane method through limit cycle analysis .

对于具有单值非线性元件的控制系统，采用改进了的计及各高次谐波的描述函数法进行分析。

An improved describing-function method which takes into account the higher harmonics is applied to the analysis of nonlinear control system with singlevalued nonlinear element .

非线性系统的稳定性分析方法有：相平面法、描述函数法、绝对稳定性理论、李雅普诺夫稳定性理论和输入输出稳定性理论等。

The stability analysis methods for nonlinear systems include the phase plane method , the describing function method , the absolute stability theory , and the input / output stability theory .

也为采用某些数学方法（如协方差描述函数法）进一步研究火箭发射系统的统计性能作了必备的前提工作。

So the study makes an easy way for launching research of MLRS and prepares for applying some mathematics methods ( such as CADET ) in the statistic field of MLRS .

并使协方差分析描述函数法-CADET的精度在所述情况下提高一倍以上，且能消除其可能的极大误差。

By this analysis method the CADET 'S ( Covariance Analysis DEscribing function Technique ) accuracy can be raised twofold or more , and maximal errors that possibly occured could be extirpated .

对于后者引起的非线性（通常称为本质非线性），采用描述函数法已能取得较好的效果，而对前者引起的非线性，目前还没有比较满意的统一处理方法。

The nonlinear caused by the latter ( usually called Nonlinearity in essence ) has been solved by the describing function technique . But to the former , there is no satisfying method .

采用频率特性的描述函数法，讨论带恒压源的非线性节流式液压传动系统在正弦函数作用下的输出特性。

The output characteristic of the non linear throttle hydraulic system with the constant pressure source under the effect of sine function was discussed with describing function of frequency characteristic in the article .

本文介绍了一种考虑三次谐波分量的新分析方法，可以简便地知道描述函数法所得结果的正确性。

This paper introduces a kind of new analysis method for considering influence of Three Degree Harmonic , then obtains the proper of the conclusion which we reach by the Describing Function Method simply .

针对描述函数法分析非线性系统自激振荡的局限性，提出了一种基于MATLAB/Simulink，用于非线性系统自激振荡教学的仿真研究方法。

Based upon the discussion of the limiation of description functional method for analysis the self-excited oscillation of nonlinear systems , simulation study approach based on the MATLAB / Simulink is proposed for instruction .

建立了数控机床进给系统的动力学模型，运用描述函数法对系统低速运动时工作台出现摩擦自激振动的原因进行了分析。

A dynamic model for the feed system in NC machining tool is established . Reasons for the frictional self-excited vibrating caused by low feed speed of system are analyzed by using describing function method .