查询词典 coordinate transformation

The method is based on a variable structure to control the SVC, wherein, the variable structure control method comprises two aspects of the unbalanced load equalization compensation and the parameter control of a PI controller, wherein, the unbalanced load equalization compensation adopts the SVC compensation susceptance computational method which is based on the synchronous rotation reference coordinate transformation of a virtual symmetrical three-phase system; meanwhile, in the stabilization control of the system voltage, the ant colony algorithm optimization method is adopted to real time adjust and to optimize the parameter kp and ki of the PI controller.

本发明公开了一种静止无功补偿器的不平衡补偿和蚁群优化方法，基于变结构对静止无功补偿器SVC进行控制，其中变结构控制方法包括不平衡负荷平衡化补偿和PI控制器的参数控制两个方面，其中不平衡负荷平衡化补偿采用基于虚拟对称三相系统的同步旋转参考坐标变换的SVC补偿电纳计算方法；同时在系统电压稳定控制时，采用蚁群算法优化方法，对PI控制器的参数kp、ki进行实时调整、寻优。

By means of presupposing the frequency in dual d-q coordinate transformation matrix the detection of specific-order harmonic is realized; by way of adding forecasted compensation angle into detecting link, the time-delay brought by digital controller and inverter is compensated.

该方法通过预设双d-q坐标变换矩阵中的频率，实现了对特定次谐波的检测，通过在检测环节中加入预测补偿角，补偿了数字控制器和逆变器带来的延时。

The result shows that the real accuracy of VLBI and GPS geocentric coordinates is within 1cm, and the scale deflection of VLBI and GPS techniques is very little, the result using seven-parameter model to process coordinate transformation is better.

分别采用七参数和九参数模型对VLBI数据和GPS数据进行坐标转换，结果表明，VLBI与GPS的符合精度小于1dm，两种技术所获得的坐标在尺度上的差异很小，七参数的转换结果更优。

The article introduces the principle and application of cutter offset compensation in 5- axis machining by analyzing the machine tool axes ,cutter offset compensation and coordinate transformation.

通过对刀具轴、刀具补偿、坐标变换的分析研究，分析了五轴联动刀具补偿的理论及应用

Based on the envelope principle and the coordinate transformation, the function of the transition curve between the involute tooth profile and root circle is conformed.

基于包络原理和坐标变换公式，确定了渐开线齿廓和齿根圆之间过渡曲线的方程。

After the ballistic trajectory in midcourse was simulated, the aspect angles of warhead target were calculated in assumed scene by coordinate transformation.

仿真了空间目标飞行弹道后，通过坐标变换得到设定战情下的弹道目标雷达视线角。

A algorithm for using the minimum zone to evaluate the space linearity error based on the principle of coordinate transformation is introduced,and the mathematical model and calculation example are given in this paper.

介绍了一种用基于坐标变换原理的最小区域法评定空间直线度误差的算法，并且给出了数学模型和计算实例。

The nesult shows thet the coordinate transformation method can compensate the errors well, which offers precision guidance condition for guided bombs.

仿真结果表明，该方法的理论模型及其修正措施能很好地修正误差，为炸弹高精度制导提供条件。

A cache memory method and corresponding system for twodimensional data processing, and in particular, twodimensional image processing with simultaneous coordinate transformation is disclosed.

本发明公开了一种用于二维数据处理特别是同时进行坐标转换的二维图像处理的高速缓冲存储器方法及其对应的系统。

On the basis of propulsive model,a mathematical model which is used to describe the motion of pitching and heaving of dolphin's caudal fin by ways of coordinate transformation is deduced.Meanwhile,this model can show the relationship between the motion of caudal fin and parameters related,then the motion of caudal fin of dolphin is simulated by the software of Matlab which showed the swimming principle.

以海豚背腹式摆动推进方程为基础，应用坐标变换的方法，建立了描述海豚尾鳍俯仰－沉浮运动的数学模型，同时建立了描述豚尾各运动参数之间关系的方程，随后运用Matlab的仿真功能再现了海豚在游动过程中尾鳍的运动规律。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐