矢量计算

Initiation of DSP, parameter setting, over voltage and over current protection are finished in the major program; current sample, rotating speed calculating, vector conversion and PWM output are finished in the interruption serving program.

系统软件由控制主程序和PWM中断服务子程序组成：主程序完成DSP的初始化、参数设定、过压、过流保护等功能；PWM中断服务子程序完成电流采样，转速计算，矢量变换和PWM输出等功能。

Classify glass defect by computing rotundity degree and slightness degree as characteristic vector.

最后针对分割图像，提取缺陷目标的面积和周长等特征参数，计算出图像中缺陷的圆形度和伸长度指标，组成特征矢量来对缺陷种类进行识别分类，为进一步的优化玻璃切割系统提供详尽的数据。

For the case where the sample covariance matrix is unknown or the sample support is not sufficient to form the sample covariance matrix, we carry out the spatially smoothed CSA-MSWF to quickly find the signal subspace and the noise subspace.

如果阵列协方差矩阵是未知的，我们采用空间平滑的CSA-MSWF快速计算信号子空间和噪声子空间的基矢量。

The software can realize the function of sample current, compute speed, transform coordinate, Space Vector Pulse Width Modulate, etc.

其软件编程实现了电流采样、速度计算、坐标变换和空间矢量控制等功能。

ABSTRACT A three-component boundary element algorithm for the calculation of 3-d linear eddy currents is presented,which employs an imaginary magnetic charge scalar and an imaginary current density vector with two components,distributed over the interfaces of different regions,as unknowns.

提出一种计算三维线性涡流场的三分量边界元算法。该算法采用在导体表面上虚设的磁荷和电流密度为求解变量，仅需求解3个分量：虚设磁荷标量和电流密度矢量的2个分量。

Our main idea is to map the singular problem in high-dimensional space into a nonsingular problem in reduced dimensional space without any loss of optimal discriminatory information with respect to Fisher criterion.

在该理论框架下，最优鉴别矢量集的计算只需要在一个低维向量空间内进行，从而极大地提高了求解效率。

Based on the wave equations of electromagnetic field, a new time-domain numerical method-direct difference solution of vector wave equation is researched. Calculating formulas of electric field and magnetic field are also given.

对电磁场波动方程进行了分析，研究了一种基于电场波动方程的时域数值方法―矢量波动方程的直接差分解法，给出了电场和磁场的计算公式。

Expanding the modification model in vector spherical harmonics, we obtained the absorption and scattering coefficients of the beam wave case.

将所得的修正解按矢量球面波函数展开，就球形粒子对束状波的消光系数进行推演和计算，并与平面波Mei理论和国外的实验结果进行比较，验证了修正解的正确性。

The main factor in determining the computation time of Kalman filter is the dimension n of the model state vector.

在利用卡尔曼滤波器对数据进行滤波时，其计算时间是由模型的状态矢量维数n决定的。

During the search process,a lot of codewords can be rejected by utilizing the relationship among the sum of the input vector,the sums of the codewords and MSE.

在迭代过程中，利用输入矢量的和值、各码字的和值以及均方误差三者之间的各种特性排除大部分候选码字而免去许多均方误差计算。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。