查询词典 perturbation method

In this method, the leading term is not the solution of the unperturbed system, it is obtained from a linearized system in a completely different way as standard perturbation methods.

提出了一种新的摄动方法——线化摄动方法，该法摄动解的主导项的确定和传统方法完全不一样，它不是未扰动方程的解，而是线化方程的解。

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。

Based on the above researches, a method of generation of special ensemble perturbation for weather regime transition is studied.

进而在此基础上，针对天气环流转型的预报，研究了特殊的集合扰动产生方法。

In the paper we use the method of perturbation to find the analytical solutions of St.

论文提出用参数展开的方法去找圣维南方程的分析解；对向定常流区推进的单向波问题给出了解的一级近似和二级近似的普遍表示式；在论文的末尾还讨论了这个方法的适用范围。

According to the method of Englert, we introduce perturbation to calculate the system Hamiltonian.

我们按照Englert等人的计算方法对系统二次哈密顿项直接引入微扰即定义了一个尝试性的二次哈密顿项来进行微扰计算。

The miss distance caused by guidance method error and the effects of perturbation are compensated in this initial guidance law.

该初制导方法能补偿制导方法误差和轨道摄动对拦截脱靶量的影响。

The first control method is a kind of perturbation control and can stabilize the BZ-CSTR chemical chaos to its embedded unstable periodic orbits.

第一种控制方案是一种微扰控制，并能将BZ-CSTR化学混沌稳定控制到其内嵌的不稳定周期轨道上去。

By extending the method of the perturbation control applied to 1-D systems to 2-D discrete dynamical systems, we study its control on spatial chaos in the sense of space.

空间混沌的参数微扰控制将一维系统的参数微扰控制拓展到2-D离散动力系统上，真正从空间意义上研究2-D离散动力系统的混沌控制，实现了其空间混沌的控制，并利用Lyapunov第一方法给出了不动平面稳定的一个充分条件。

Specifically,- By using Melnikov method of perturbation criteria, the conditions of periodicparamtric perturbations to control chaos in Lorenz system are discussed.

具体可以分为：-利用微扰判据的Melnikov方法讨论周期扰动参数引导Lorenz混沌系统进入低周期轨道的参数条件。

The coupling problem of heating stress arid heating elasticity was discussed. The equation was resolved with the method of perturbation to get more precise answers.

讨论了记忆合金因受热而引起的热应力和热弹性的非线性耦合问题，用摄动法对非线性方程进行求解，避免直接假设线性化所引起的误差，提高了解的精度。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。