查询词典 perturbation function

By means of the constrained perturbation approach proposed by Champagne, this algorithm can update the signal subspace while preserve the orthonormality of the updated singular vectors.

该方法利用了Champagne等人提出了受限摄动方法，在更新信号子空间的同时，保持构成子空间的各组基的正交规范性。

In this paper, the current states of research about the basic theory of stationary state perturbation method are firstly reviewed, on base of them, and studied some physics issues mainly about hydrogen atom. The stark effect of the energy level (n = 4) of hydrogen atom is calculated and the stark effect of three dimensional hydrogen atom is discussed by the use of the parabolic coordinates, then the perturbative matrix elements for each energy level are given.

本文首先综述了关于定态微扰论基本理论的研究现状，在此基础上利用定态微扰论对某些物理问题，主要是对氢原子问题展开了研究，计算了氢原子n=4能级的斯塔克效应，并利用抛物线坐标法求解了三维氢原子的斯塔克效应，给出了氢原子斯塔克效应中微扰矩阵元的普遍公式。

At one time, in terms of the three sections including flight condition variety, model parameter perturbation and disturb brought by weight variety, the robust performance of ASTOVL control system is validated.

与此同时，还对本文所设计的ASTOVL飞机控制系统，从飞行条件剧烈变化、模型参数摄动和重量变化引起的干扰力矩三个方面进行了鲁棒性验证。

ABSTRACT Sample path perturbation analysis is a newly-developed approach for the study of discrete event dynamic systems. PA has many advantages and is very effective in parametric analysis and optimization.

摄动分析是近年来提出的一种研究离散事件动态系统的新方法，它具有许多优点，在进行参数分析和优化时特别有效。

This paper investigates the orbits of sub-harmonic and chaos in power system under periodic and quasi-periodic perturbation .

研究了电力系统在周期和准周期扰动下的次谐和混沌轨道。

The matrix perturbation method is effective to solve this kind of problem.

矩阵摄动法是解决这种问题的有力工具。

We must seek two main approximation methods of solution , the variation method and perturbation theory

我们必须寻求两个主要的近似解法、变分法和微扰法。

The examples show that the random perturbation method is both easy to be carried out and extremely efficient.

算例表明，本文所提出的随机摄动算法易于实施，且十分有效。

The singular perturbation method is a useful tool to work with the mathematical and physical problems.

它的主要思想是将非线性的，高阶的或变系数的数学物理问题的解用所含某个小变量的渐进近似式来表示。

There are two kinds of method in common use. One is numerical method, and the another one is analytic approximation which is represented by perturbation method.

常见的方法有两种：一种是数值方法，二是以摄动法为代表的解析近似法。

A strange and mysterious deep sea creature.

一种奇异、神秘的深海生物。

It's a yellow rectangle .

这是黄色的长方形。