perturbation theory

基本解釋

Perturbation Theory III. Transition Probability. Wavepacket. Degeneracy.
微擾理論III。躍遷幾率。波包。簡并。
140.138.2.232
According to the singularity perturbation theory, dynamic inversion is adopted to design the basic attitude controller including fast inverse loop and slow inverse loop.
利用多重時間尺度奇異攝動理論，結(jié)合非線性動態(tài)逆方法設(shè)計了基本姿態(tài)控制器，包括快逆回路和慢逆回路兩部分。
Firstly, the state variables of the reentry vehicle are decomposed into two sub-systems of different time scales using the singular perturbation theory.
首先，利用奇異攝動理論對再入飛行器狀態(tài)變量進(jìn)行兩個時間尺度的劃分，將系統(tǒng)狀態(tài)方程分解成兩個低維子系統(tǒng)。

微擾理論
Chapter 3 presents the methods to calculate the multi-photon absorption focusing on the time-dependent perturbation theory (also known as Sum-Over-State) and response theory.
第三章給出了多光子吸收性質(zhì)的計算方法,其中包括含時微擾理論方法(又稱為態(tài)求和方法)和響應(yīng)理論方法。
微擾論
攝動理論
擾動理論

微擾理論
Two formulae for the electromagnetic field and the propagation constant calculation are derived from the perturbation theory.
首先運用微擾理論計算出光波導(dǎo)的電磁場分布，然后從麥克斯韋方程出發(fā)推導(dǎo)出一個計算光波導(dǎo)傳播常數(shù)的公式并由此得出其色散曲線。
擾動理論
微擾論
Because of the strong stiff of the electron occupation probability equation,we adopt mutipletime-scale perturbation theory to transfer them into algebra equation and differential equation with low stiff.
束縛電子占據(jù)概率速率方程組具有很強的剛性，我們采用多時標(biāo)微擾論方法，將其變換成代數(shù)方程組和剛性較小的微分方程組求解。
攝動理論

攝動法
After the non-linear water-wave equation is divided into the first order and second order equation by the perturbation theory, the corresponding finite element matrix equations have been derived by means of Galerkin method.
對水體運動方程經(jīng)攝動法分解后運用伽遼金法進(jìn)行有限元離散，得到水體的一、二階速度勢的有限元微分方程組。
天文學(xué)
攝動理論