查询词典 position vector

The servo control system combines position loop,speed loop,current loop with algorithm of space vector pulse width modulation.

系统采用位置、速度和电流环三环控制，并结合空间矢量脉宽调制算法。

This thesis focus on GPS application in magnetic suspension engineering:① the formulation of oblique cylindrical projection is worked out according to characteristics of long distance precise engineering and map projection theory. The author has developed an application to accomplish coordinate conversion from generally used coordinate systems to oblique Maglev Coordinates System.② considering not only project peculiarities but also position of control points, selection of initial points, connection type, selection of repeat baseline and ground observed quantities, GPS network is designed on electronic map and we may extract GPS network information by program developed using Visual Basic 6.0 while the results are stored in control point file and baseline vector file.③estimate accuracy of various GPS networks designed on electronic map by method of 2D restriction adjustment. GPS network simulation design and accuracy estimate come true.④Predominate the rules how connection type , repeat baseline and precise baseline of range finder influence GPS network precision through comparing accuracy of various GPS network. Thereby, the solution how to establish GPS network in long distance precise engineering is figured out.

本论文主要研究GPS技术在磁悬浮工程中的应用：①根据长距离精密工程的特点，从地图投影原理出发，推导出斜轴圆柱投影的应用公式，并编制计算软件，实现从常用坐标系统向斜轴磁悬浮坐标系统的转换计算；②在AutoCAD电子地图上，根据工程的需要，并充分考虑控制点的点位、起算点的选择、连接方式、重复基线的选择和地面观测量的选择等因素，在电子地图上进行GPS网的设计，根据Visual Basic 6.0语言编程，提取出GPS网资料，保存在控制点文件和基线向量文件中；③对在电子地图生成的各种类型的GPS网进行二维约束平差的精度估算，实现了GPS网的模拟设计与精度估算；④通过对各种控制网的精度比较，掌握连接方式、重复基线、精密测距仪基线对GPS网精度影响的规律，解决了长距离精密工程GPS网的建立方法。

A new algorithm for linear array position calibration is presented. In the case of source direction-of-arrival is uncertain, by using the least square algorithm, the source DoA is estimated based on the unwrap phase of the steering vector.

针对独立校准信源波达角未知情况下的阵列位置误差校正问题，提出了一种对信号导向矢量的绝对相位进行最小二乘线性拟合，进而估计出阵元位置误差的算法。

Either of two coordinates , the radius vector or the polar angle , that together specify the position of a point in a plane .

极坐标：两个坐标中的任一个，向量径或极角，共同用以确定平面中一点的位置

The main idea of this article is to display gps position data on the vector map.

本文的主要设计思想是将GPS接收机返回的车载定位数据在矢量化电子地图上以位图的形式显示出来，这个位图就代表所要监控的车辆。

11 P: Unsure of my position, request radar vector.

P：我不能确定位置，请求雷达引导。

For example, 180 degree vector control with position sensor is a high efficiency control method.

采用瑞萨微控制器对提高系统效率有何帮助？

The obvious characteristics of vector data: position obvious, properties connotative.

矢量结构的显著特点：定位明显，属性隐含。

F or each non-occupied board position there is one such vector which is presented to the input units of the subnetwork.

对每个空白格有一个类似的向量来表示子网的输入单元。

Then, the process of estimating initial position by injecting voltage impulse vector is expounded.

阐述施加电压脉冲矢量检测初始位置方法的实现过程。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷