查询词典 stability conditions

Also the problems of stochastic controllability, observability and stability of the filter are studied, a simple observability criterion for the time-invariant systems is set up, error band of the filtering is given theoretically, and the filtering stability results are proved under more general conditions; besides, the filtering error caused by uncorrect mathematical models is analysed.

本文还研究了随机能控能观性及滤波的稳定性问题，建立了结构简单的平稳定常系统的能观性判据，在理论上给出了滤波算法的误差范围，在更一般的条件下证明了最优滤波算法的稳定性；并从理论上分析了模型误差对滤波产生的影响。

The simulation results show that the stability augment controller has good stability under three kinds of designing conditions and it can track the external input command rapidly and soundly. It is also able to inhibit the external disturbance quite well.

仿真结果表明，所设计的鲁棒控制器在理想条件和受干扰条件下均具有良好的稳定性，而且均能很快很好的跟踪外部输入指令，对系统不确定性都有很好的鲁棒性，能很好的抑制外部干扰。

According to the conditions of topography,geological structure,climate,hydrology and engineering geology,the main factors influencing the slope stability of the Grand Buddha rock mass are discussed;the generalized model of the slope for stability analysis is set up,and the main working situations of the slope are put forward.

根据太原晋阳西山大佛所处的地形地貌、地质构造、气象水文条件和场地工程地质条件，分析影响大佛边坡岩体稳定性的主要因素，建立大佛松动岩体边坡稳定性分析概化模型，提出大佛边坡岩体所处的主要工况类型。

Based on the Method of Lyapunov function and interval analysis technique,soMe sufficient conditions of robust absolute stability for the interval Lurie systeM are obtained,which reduces the conservatisM in robustness tests of absolute stability.

用Lyapunov函数方法和区间分析技术，得到了区间Lurie系统鲁棒绝对稳定的一些充分条件，这些条件减少了绝对稳定鲁棒检测的保守性。

Linear Fractional Transformation is adopted to translate the control of perturbation to the control of disturbance, then cost index is augmented, and with the min-max method, a robust receding horizon control law is derived. The sufficient conditions for the existence of the control law and closed-loop stability are also presented. The result is extended to time-invariant system with an infinite horizon, and its consistence with the robust control based on the concept of Quadratic Stability is verified.

首先利用线性分式变换，将摄动系统的鲁棒控制问题转化为对扰动系统的鲁棒控制问题；然后通过对性能指标的扩展，利用min-max方法，得到了鲁棒滚动时域控制律，并给出了其存在和使闭环系统渐近稳定的充分条件，并将结果扩展到对定常系统时域无穷的的情况，指出其与现有的基于二次型稳定概念提出的鲁棒控制的一致性。

The sufficient conditions to guarantee robust exponential stability for the closed-loop systems are obtained based on Linear Matrix Inequality, moreover, the approach of design of robust H# output feedback controller is introduced.3 The problem of reliable H# control for a class of Lur"e systems with polytopic uncertainties is studied when all control components are operational as well as when some control components experience failures, the design approach of reliable H# controller is also obtained.4 Considering a class of uncertain Lur"e singular system with time-delays, the problem of robust stability is investigated based on Barbalats Lemma and nonsingular linear transformation of model reduction.

针对一类不确定Lur'e奇异时滞系统，基于Barbalat引理以及非奇异降阶变换，讨论了Lur'e奇异时滞系统的鲁棒稳定问题，提出了鲁棒H_∞状态浙江大学博士学位论文反馈控制器的设计方法。5、针对一类具有饱和执行器的不确定Lur'e奇异系统，提出了时滞依赖的鲁棒稳定与鲁棒二次镇定的充分条件，所的结果不需要参数的整定。6、针对任意协方差有界的有色噪声，讨论了一类不确定Lur'e奇异系统的鲁棒凡滤波问题，得出了鲁棒几滤波器设计的充分条件。7、针对一类不确定Lur'e时滞系统，通过线性变换，把它转换成奇异系统，根据奇异系统鲁棒控制理论所得出的鲁棒稳定与鲁棒镇定控制器设计的充分条件具有很小的保守性。

This article analyses the absolute stability of time delay to one-dimensionality force telepresence remote system, and determines the absolute stability conditions that can ensure the system work normal.

因此建立空间力觉临场感遥控系统的时延动力学模型，确定保障系统在任何时延下均能稳定工作的绝对稳定条件具有十分重要的意义。

I plant complex emulsion stability of reasonable scientific formula, production testing equipment, production conditions mature, fully guarantee the functionality of the product quality, uniformity and stability.

我厂复合乳化稳定剂配方合理科学，生产检测设备齐全，生产条件成熟，完全保证了产品质量的功能性，均一性和稳定性。

All concerned for setting up a remedial and maintenance program should understand the performance requirements, time limit for the project, the cost, the maintenance, geology, construction conditions, environmental protection, building material, and the stability change of the slope with time and the reservoir filling, stability under different combination of loads.

治理工程措施选择应充分考虑治理工程功能性的具体要求、在不同工况条件下的安全性及耐久性、工期要求和投资的经济性以及后期维护的要求、工程岩土体性质及其蓄水后的变化、场地条件、施工技术条件、地方材料资源等具体制约因素以及环境保护的要求。

Motivated by the newψfunctional stability,we can establish some new kinds of stabilities which are different from the exponential stability.With the help of semimartingale convergence theorem,stochastic calculous,moment inequality,Burkholder-Davis-Gundy inequality,Gronwall inequality etc.,we find that the product ofψfunction and the solutions of neutral equations will approach a nonempty set if some specific conditions are satisfied.

我们应用半鞅收敛定理、随机微积分的相关知识以及矩不等式、Burkholder-Davis-Gundy不等式和Gronwall不等式等技巧，得到中立型随机泛函微分方程的解与特定的"ψ函数"的乘积在一定的条件下将趋向某非空集合这一结论，并建立了该中立型方程的随机LaSalle型定理。

Finally it offers the analysis of the fault-tolerance system as well as its test verification.

这样，运行于空间环境中的系统的设计目标就是在保证系统实时性

However, it is still difficult to find out the real reason of the increase of the keratinized gingiva during the orthodontic extrusion whether it is due to the proliferation of the gingival tissue or to its elastic nature, that is because the proliferation of the fibroblasts as well as the connective tissue changes in volume and the intra-fibers spaces were all immeasurable in most of the studies.

然而，仍然难以找到真正的原因增加的角化牙龈在正畸挤压它是否是由于扩散的牙龈组织或其弹性性质，这是因为增殖的成纤维细胞以及作为结缔组织的变化量和内部纤维空格都是不可估量的，大多数的研究。