查询词典 iterative computation

Wherefore writer carries out another iterative computation. In the computation, considering the influence of all of joggle parameter, adopting compound - aitch optimization and intellective distinguish can prevail more reasonable joggle parameter. And using example writer discusses the contract of the methods.

在计算中考虑全部啮合参数对齿轮传动的影响，采用复合形优化方法和智能判别系统可得到更加合理的啮合参数，并用实例论述了这种重复优化的与传统设计和单目标优化的效果对比。

A region superresolution spectrum estimation method based on coventional DFT computation is presented for obtaining one dimensional range profile, which has the advantages of real-time in computation and robustness under clutter and noise background over general superresolution methods. A iterative extropolation method based on both priori knowledge provided by conventional DFT spectrum and matching filtering process of target return data is also presented for range profile processing, which has the advantages of robustness in improving range resolution, suppressing clutter and noise.

在目标一维距离成像谱估计中，提出了以常规DFT为基础的邻域超分辨谱估计方法，它与普通超分辨算法相比，具有实时性强、在杂波与噪声背景中稳健性好的优点；在外推成像处理中，提出了以常规DFT目标结构图像为约束条件并结合目标信号准匹配滤波处理的迭代外推算法，其优点是稳健性好，能适度地提高距离分辨力但保留适度的抗杂波抗噪声能力。

Instead of multidimensional nonlinear search or iterative computation, the algorithm just uses a one-dimensional search and can reduce the computation burden.

算法的波达方向估计只需一维谱峰搜索，避免了通常多参数联合估计的多维非线性搜索及迭代运算，可明显减小算法运算量。

The traditional Givens rotation algorithm involves root computation that needs more hardware resources, a Givens rotation algorithm without root and division computation is presented. And, combined with special structure of input signal matrix, a interference suppression algorithm with low computation is proposed. The narrowband interferences are modeled as autoregressive process and digital signal.

传统Givens旋转算法涉及平方根运算，要消耗较多硬件资源或需要多次循环来实现，为此，提出一种无平方根与除法运算的Givens旋转算法，并结合信号输入矩阵的特殊结构，给出一种低复杂度的干扰抑制算法，将窄带干扰建模为自回归过程以及数字窄带信号。

Wang Tao of president of the software in A is received express, what strategy of computation of cloud of electronic business affairs points to is: The software in A " E net is hit into "," foreign trade edition "," money manager " wait for company core to run software, will offer Wu of consign, use kimono through online SaaS mode, so need has a powerful tiring-room IT technology to serve a platform, potential platform of infinite nuclear power computation -- namely center of computation of cloud of electronic business affairs.

阿里软件总裁王涛接表示，电子商务云计算战略指的是：阿里软件"e网打进"、"外贸版"、"钱掌柜"等企业核心管理软件，都将通过在线SaaS模式提供交付、使用和服务，所以需要具备一个强大的后台IT技术服务平台、一个潜能无限的核动力计算平台——也就是电子商务云计算中心。

Huge computation, including the on-line estimation of the process parameters, the computation of the Diophantine equation and, especially, the computation of the in...

在线计算量大，包括模型参数的在线辨识，Diophantine方程和逆矩阵的求解，以及其它计算，如处理约束问题需要的计算。

But for the middle and large scale problems, the computation cost by symbolic differentiation is very expensive. When the direction derivative is evaluated, the computation cost by divided difference can be reduced, but it is only one kind of approximate computation.

对于大中规模问题来说，使用符号微分，成本昂贵，有时甚至不可行，在计算导数的方向梯度时，利用差分法虽然可以降低计算成本，但得到的是近似值，而且确定恰当的差分区间也很困难。

The computation by using image coordinates will cause computational breakdown or deterioration of accuracy when they become too large,and the computation by using homogeneous coordinates will increase computation work.

现在，越来越多的人们逐渐把注意力放在关于射影几何的计算以及利用不变量进行物体识别[3][4]。

Therefore, it is necessary to test the computation results and further modify the computation method based on the comparison between the numerical solution of the linear or non-linear equations and the trial value or the computation results of typical cases.

所以，需依靠对非线性数学方程的数值实验及数值解与试验或典型算例结果的比较和物理特性分析，验证数值计算结果，进一步改进计算方法。

Some new method is presented in this paper: A. An Integrated parameters computation method to analysis asynchronous operation of the turbine generator is given, including the equivalence of short circuit and open circuit of field windings, deducing boundary condition of 〓 method and computing frequency parameters. B. A new memory structure for sparse complex matrix and a PCCG method based on it are introduced to save memory and computation time. C. An equivalent method of vacuum is presented, and effectively eliminate the effect of corner point and accelerate convergence of PCCG method. D. Coupling the computation of electromagnetic and temperature field is discussed and model for computing temperature field of the turbine generator rotor at asynchronous operation is built.

文中提出了以下新方法：(1)在失磁异步运行转子三维涡流场计算中提出了完整的参数计算方法，其中包括励磁绕组开、短路的等效，〓法边界条件的推导及频率参数的计算方法；(2)提出了铁心内空气域的等效方法，有效地解决了开槽引起的角点奇异问题，并提高了方程组的迭代收敛速度；(3)在〓法有限元模型中，创立了一种能节约内存、提高计算速度的压缩存储矩阵格式，并建立了基于该格式的方程组解法；(4)提出了涡流电磁场和温度场两种不同场计算的合理结合方法，建立了转子三维稳态和时变温度场的有限元计算模型。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。