正交分解法

本征正交分解法在屋盖结构风场模拟中的应用

Application of proper orthogonal decomposition method in wind field simulation for roof structures

本文在分析赋权重马氏距离函数与传统马氏距离函数差异的基础上，提出了赋权重马氏距离MYT正交分解法，并将其应用于多元系统马氏田口异常值异常原因分析。

Based on the difference between weighted Mahalanobis distance function and traditional Mahalanobis distance function , Mason-Young-Tracy ( MYT ) orthogonal decomposition method of weighted Mahalanobis distance is put forward , and applied to potential causes analysis of multidimensional abnormal points .

用改进的光滑约束最小二乘正交分解法实现电阻率三维反演

3-D resistivity inversion by the least-squares QR factorization method under improved smoothness constraint condition

仿真实验表明：基于频率估计的正交分解法既满足计算精度，又有较快的计算速度。

The experiments show that it can meet the computational precision and take little time .

为解决正交分解法受频率偏离的影响，本文提出了基于频率估计的正交分解法。

To reduce the affect of the frequency-deviate , the orthogonal resolution method based on frequency-estimation is presented in this paper .

对水流脉动壁压的研究，不仅有助于了解水流内部的紊动结构，而且具有重要的工程应用价值。介绍了正交分解法在脉动壁压研究中的应用。

The study of wall-pressure fluctuation is not only the important part in the theory of turbulence , but also the actual need in engineering .

三点正交分解法计算量小，且和频率无关，但有谐波存在时显得无能为力。仿真实验表明：基于频率估计的正交分解法既满足计算精度，又有较快的计算速度。

It has nothing to do with frequency , but not suitable for harmonics . The experiments show that it can meet the computational precision and take little time .

本研究利用正交分解法对振荡流场进行分解，以获取的扰动场基本模式分析流动不稳定性。

It is the first time that using POD to decompose oscillatory flow and get useful information about the fluctuation , such as the basic flow modes and the percent of every basic flow mode to thermal convection .

本文采用程函方程有限差分法计算通过速度模型的初至旅行时射线路径，然后引入先验地质信息和正则约束条件，用约束最小二乘正交分解法（CLSQR）进行走时反演，获得近地表速度结构。

The near-surface velocity structure can be obtained by first calculating ray path of first break travel-time passing through a velocity model by using finite-difference method for Eikonal equation and then by conducting travel-time inversion using introducing a priori geologic information and orthogonal constrained least square decomposition .

正交三角分解法及其在光束法平差中的应用

Orthogonal-Triangular Decomposition and Its Application in Bundle Adjustment

本文采用自然正交函数分解法对我国南方地区的降水气候序列与夏季（5～8月）逐日降水序列进行时空特征分析和对应天气形势分析。

In this paper the climatology of the precipitation , the daily rainfall series of months 5-8 and the correlative weather systems are analysed .

此外根据本征正交分解（POD）法原理以及原始风压场，对未布置测压点处的风压系数进行预测。

In addition , it forecasts the wind pressure coefficient of the non-arrangement pressure points under the proper orthogonal decomposition ( POD ) method and the original wind field theory .

将特征正交分解型谱表示法运用于模拟具有桥塔风效应的桥梁风场中。

The proper orthogonal decomposition ( POD ) - based spectral representation method is used to digitally simulate wind fields around bridges with wind passage effects .

结合模态截断技术，导出了特征正交分解型谱表示法的随机模拟公式。

By combining with the modal truncation technique , the simulation formulas for proper orthogonal decomposition ( POD ) based on the spectral representation method were derived .

定义了随机向量过程的特征正交分解，推导了特征正交分解型谱表示法的模拟表达式，该算法可用FFT加速。

Proper orthogonal decomposition ( POD ) of random multivariate processes was defined firstly . Then , a series of practical expression of the spectral representation method on the basis of POD was given , which can be accelerated by FFT .