自然梯度算法有收敛速度和稳定误差两个重要指标，然而这两个指标存在内在的矛盾。
In the natural gradient algorithm, the convergence speed and stability error are two important indicators, but these two indicators are of inherent contradictions.
为了解决自然梯度算法的这个缺点，人们提出了变步长自然梯度算法，既可以获得较快的收敛速度，又可以减小稳定误差。
Variable step-size natural gradient algorithm which enjoys faster convergence speed and smaller stability error is proposed to solve the shortcoming of natural gradient algorithm.
在此基础上设计的模糊自适应控制器能够保证整个闭环系统稳定且跟踪误差收敛到零的一个邻域内。
The fuzzy adaptive controller designed based on this method can guarantees that the closed-loop system is globally stable and the tracking error converges to a neighborhood of zero.
然后结合输电系统的实际情况分析计算了降阶模型误差对最优励磁控制的微动态稳定鲁棒性的影响。
The effect of the modelling error on the micro-dynamic robust stability of an optimal excitation regulator is calculated according to the actual conditions in a transmission system.
本文探讨了“串级阵阶模型误差”(包括控制回路中的惯性环节)对线性二次型(LQ)最优控制的稳定鲁棒性的影响。
In this paper the effect of "serial reduced order modelling error" (including the inertia links in regulation loop) on the robust stability of LQ optimal regulators is analysed.
试验结果说明这种控制方法控制的SAPF具有实时性好，误差小，系统运行稳定的特点。
Experiment result indicating that the new method is more suitable to control SAPF and it made system better real time, little error and better stabilization.
指出这种模型误差是造成LQ最优控制稳定鲁棒性差的一类重要因素。
It is shown that the modelling error is one of the important factors that affect the robust stability of LQ optimal regulators.
经实际生产过程的验证，系统切割误差小、响应速度快、定位精度和生产效率高、系统工作稳定。
Experimental results show that the cutting error of this system is small, the speed of response is quick, the pointing precision and the production efficiency are high, and system work is stable.
通过理论分析，证明了模糊变结构控制系统是全局稳定的，跟踪误差可收敛到零的一个邻域内。
By theoretical analysis, the fuzzy variable structure control system is proved to be globally stable, with tracking errors converging to a neighborhood of zero.
讨论如何进行模型测试，包括误差分析与稳定性。
Discuss how the model could be tested, including error analysis and stability conditioning, sensitivity, etc.
根据该差分方程的特征值表达式讨论了AGC模型设定序列的稳定区域和稳态误差与AGC模型参数之间的关系。
On the basis of the expression of characteristic value of the differential equation, the relationship between the stable domain, steady state, steady-state error and AGC model parameters is discussed.
结果表明该控制器能够补偿系统的非线性因素，保证了系统的稳定，减小了跟踪误差。
The experiment results demonstrate that the controller can compensate the nonlinear factors in the system, guarantee the system stability and diminish the tracking error.
控制的频率和相位偏移误差均达到了10 - 5，稳定度达到了0.05%。
When error of the frequency and phase shift is 10-5, its stability is 0.05%.
因此，设计了一种基于自适应反步控制器的效率优化控制方案，使其误差系统在原点全局稳定。
Therefor, An adaptive backstepping controller is designed to optimize the efficiency and the system error is global stable at the origin.
同时还表明，同一场地具有相对稳定的误差曲线。
It also indicates that the site error correction curves are stable via time.
极佳的陶瓷物理性能，保证在环境温度和高的工作温度下性能稳定，尺寸误差小、表面质量优秀。
The excellently good ceramic physics performance guaranteed the stable performance under ambient temperature and the high operating temperature, with small size error and outstanding quality.
该方法不但能保证闭环系统稳定，而且可使跟踪误差收敛于原点或原点的一个小邻域内。
It is proved that the proposed method can not only guarantee the stability of the closed-loop system, but also make the tracking error converge to the origin or its small neighborhood.
因此，需要引入其它高精度稳定测量环节，用以修正漂移误差，提高导航精度。
It is necessary to introduce other high precision measure method for excursion error correcting and guidance performance improvements.
在算法实现过程中，选择数值稳定性高、误差可以控制、计算工作量少和尽可能节省内存空间的算法。
In the course of algorithmization, we should select arithmetic with high numerical stability and controlling error and computational effort little and saving memory space.
给出了谱配置方法空间半离散格式的稳定性和误差估计。
The stability and convergence of spectral collocation method spatial semi-discretization are given.
此外，就放大器输入电路及反馈环节的数学模型进行了误差计算与工作稳定性的分析与评价。
In addition, the mathematical model of the input circuit and the feedback link of the amplifier are analyzed on the error computation and stability evaluation.
通过引入非线性阻尼项，保证了闭环系统的所有信号都是全局稳定的，而且跟踪误差及参数估计误差均收敛于零。
By introducing nonlinear damping term, it is proved that all signals in the closed-loop system are globally stable, and the tracking error and the parameter (estimation) error converge to zero.
针对一维扩散方程，给出一种新型差分格式的待定系数法，并以两种新型差分格式为例进行稳定性和截断误差分析。
Taking one-dimensional diffusing equation as the object of study, a method of undetermined coefficients was given. Then gave two examples and analyzed their stability and truncation error.
利用李亚普诺夫函数分析了误差系统的稳定性，说明误差是指数收敛的。
The stability of the error system is analyzed by a Lyapunov function, which shows that the errors are exponential convergent.
本文介绍了音乐专业考试的评分办法；研究了准确度评价、稳定性评价的方法；分析了评分误差曲线。
The article introduces the grading method in the professional examination of music, researches the way of accuracy and stability appraisal and analyses the curve of grading errors.
在隧道爆破开挖中，频繁反复的爆破冲击动压力对隧道设计轮廓线、施工误差和围岩的稳定性等有很大影响。
The impulsive dynamical pressure from frequent blasting has a strong influence on designed tunnel contour, construction error and stability of surrounding rock in the course of excavating tunnel.
在隧道爆破开挖中，频繁反复的爆破冲击动压力对隧道设计轮廓线、施工误差和围岩的稳定性等有很大影响。
The impulsive dynamical pressure from frequent blasting has a strong influence on designed tunnel contour, construction error and stability of surrounding rock in the course of excavating tunnel.
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