First, the basic theory and several computation analysis methods of reliability are discussed, and the First Order reliability method (FORM) and Monte-Carlo method are emphasized.
首先介绍了工程结构可靠度理论及分析计算的若干方法,重点阐述了FORM法和蒙特卡罗法。
A set of formulas for the computation of quadratic performance function associating with first and second-order sensitivities of feedback coefficient matrix is given in this paper.
本文给出了连续系统中计算二次型性能函数对反馈系数阵的一阶和二阶灵敏度的全套公式。
In this paper we consider second order nonlinear terms, set up more precise dynamic system's model and derive the computation formula of terminal perturbation deviation by state variation.
本文考虑到二阶非线性项,建立起更加精密的系统模型,推导出利用状态变分计算终端干扰偏差的公式。
Then we use roll dilation to detect the boundary of the object in the image and introduce a direction control factor in order to reduce the computation redundancy.
最后通过滚动膨胀正确的提取物体的轮廓信息,在结构元素移动的过程中引入了方向控制条件因子,减小了计算的冗余度。
For a thermodynamic process model described by higher order state equation, the general method of reduction of order will meet with a vast amount of computation.
对高阶状态方程描述的热工对象,若使用通常的降阶方法,将会有很大的计算工作。
In order to solve these problems, the dissertation studies data model of data warehouse and multidimensional computation in detail.
为了解决上述问题,本论文深入地研究了数据仓库的数据模型以及多维计算。
It is necessary to parallelize the algorithm of the finite element inversion system in order to improve computation efficiency and to study more complex models.
为了提高计算效能,研究更复杂的模型,很有必要将该有限元反演系统的算法实现并行化。
This paper presents a new sampling method, which is called sampling method by allocating random order to percentiles based on some random simulation problems of statistical computation.
该文针对统计计算中的某些随机模拟问题提出了分位点随机配序抽样法。
The method with computation complexity of polynomial order, has been successfully applied to the real-time analysis of signals in mobile ECG telemonitoring systems.
该算法具有多项式级的计算复杂度,已成功应用于移动式远程心电监护系统ECG信号的实时分析。
This paper introduces the concept of potential function into the multiply-connected region and provides its method of computation in order to solve some complex problems concerning line integrals.
本文在复连域上引进势函数的概念,并给出其计算方法,以此来解决一些复杂的曲线积分计算问题。
Meanwhile, in order to improve the computation speed of the server, the Chinese Remainder Theorem (CRT) is used in RSA decryption algorithm.
同时为进一步提高服务器的运算速度,在服务器端利用中国剩余定理(CRT)对RSA解密算法中的模指数进行降幂处理。
In the last the concept of irrelative sets and its application in the computation of polynomial order are given.
最后还给出了无关项集的概念及其在多项式阶的计算过程中的应用。
Several method are brought forward in order to improve the computation efficiency of the FEA of sheet forming. The Influence of virtue speed on the numerical simulation is also investigated.
主要介绍了提高板料成形有限元分析计算效率的几种方法,并通过实验研究了虚拟速度对有限元分析结果的影响。
In order to work on the coupled loads computation of the launch vehicle and satellite, the latter's manufacturers must provide a satellite mechanical model.
为了进行火箭与卫星的载荷耦合计算工作,卫星方要提供卫星的力学模型。
Abstract: Several method are brought forward in order to improve the computation efficiency of the FEA of sheet forming. The Influence of virtue speed on the numerical simulation is also investigated.
文摘:主要介绍了提高板料成形有限元分析计算效率的几种方法,并通过实验研究了虚拟速度对有限元分析结果的影响。
In order to decrease the computation, a reduction form is deduced to get the response of random multi-variables from single variable, and verified by Monte-Carlo stochastic FEM.
为了减少在多随机变量情况下的该方法的计算量,建立了一种简化算法,推导出利用单随机变量的响应结果构造多随机变量的响应。算例验证其有有效性。
Here we present a new method for the arrangement, and through an example of the computation of a tenth order elliptical band-pass filter, show its va...
本文提出新的安排方法,简单而符合实际,并通过一个十阶带通椭圆型滤波器的计算,作为例子,说明这种方法的依据。
A set of recursive computation formulas is derived in order to get effective computation.
并导出递推计算公式便于程序执行。
Here we present a new method for the arrangement, and through an example of the computation of a tenth order elliptical band-pass filter, show its validity...
本文提出新的安排方法,简单而符合实际,并通过一个十阶带通椭圆型滤波器的计算,作为例子,说明这种方法的依据。
Finally, a output cavity loaded with a filter is computed and the computed result is analyzed and compared with cold test data in order to conform the reliability of this simulated computation method.
最后通过滤波器加载输出腔的模拟计算结果与冷测结果的比较和分析,进一步验证该方法的可靠性。
UKF solves the problem of non-linearity of observation model better, and its performance is superior to that of EKF. The computation complexity of the UKF is the same order as that of the EKF.
与推广卡尔曼滤波器(EKF)相比,UKF能更好解决量测模型非线性问题,滤波性能更好,而且UKF的计算量与EKF是同阶的。
In order to solve the problem of too much matching computation, a novel method is proposed to reduce region match computation in data filtering based on hierarchical dividing of routing space.
针对大规模系统过滤匹配计算量大的问题,提出了一种基于路径空间层次划分方法。
Based on the wave surf tessellation grid, surf crack and edge stitching technique, we use method of LOD to decline data sets of ocean surface grid in order to simplify the computation.
在分析海面网格的细化的方法及裂缝和边缘缝合技术的基础上,构造LOD网格以减少网格计算量。
In order to reduce time consuming of computation, some accelerated techniques were studied such as parallel, implicit method of DP-LUR and dual time stepped method.
为了减少计算时间,研究了并行、隐式DP - LUR方法、双时间步长法等计算加速技术。
The results show that the staggered-grid high-order finite-difference method can satisfy the demands of engineering with high accuracy and rapid computation.
结果表明:交错网格高阶有限差分波场数值模拟具有较高的精度,计算速度快,基本能满足工程上的需要。
In order to improve the efficiency and precision of the radar cross section computation, a scattering model of the layered complex multi chaff clouds is presented in this paper.
为了提高计算复杂多发箔条云团的雷达散射截面的精度和效率,提出了一种基于分层结构的复杂多发箔条云团散射模型。
On the study of seismic first break, in order to fit the requirements of locale evaluation, it is needed to find a method that can assure accuracy and improve the speed of computation.
在地震波初至走时拾取研究上,寻找既保证准确性,又能提高运算速度的方法,以适应现场评价需求。
In the current implementation, each image generates on the order of 1000 SIFT keys, a process that requires less than 1 second of computation time.
照目前的情况,每幅图像按命令产生1000个SIFT键,这个过程只要不到1秒的计算时间。
In order to extract wide-band scattering parameters by one computation, the concept of characteristic impedance is introduced to separate transmitted and reflected voltage waves.
为了在一次计算中抽取宽频带的散射参量,引入特征阻抗的概念用于分离入射电压波和反射电压波;
In order to extract wide-band scattering parameters by one computation, the concept of characteristic impedance is introduced to separate transmitted and reflected voltage waves.
为了在一次计算中抽取宽频带的散射参量,引入特征阻抗的概念用于分离入射电压波和反射电压波;
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