坐标系

另外，通过讨论60°坐标系下的SVPWM算法、中点电压不平衡原理与中点电压平衡控制、死区效应分析及补偿和异步电机矢量控制系统设计方案等为矢量控制系统的研究准备了理论基础。

In addition , svpwm algorithm in 60 degree coordinate system , the unbalance theory of neutral point voltage , the analysis and compensation of dead time , the design principle of vector system and so on were described .

触发式测头在确定工件坐标系中的应用

The Application of Touch Trigger Probe in Setting Workpiece Coordinate System

建立了光电经纬仪的各种坐标系及其相互关系

It builds coordinate and their correlations of photoelectricity theodolite .

贴体曲线坐标系中的非交错网格的SIMPLE算法

SIMPLE Algorithm with Non - staggered Gird in the Body - fitted Curvilinear Coordinate System

气相场在欧拉坐标系中用SIMPLE算法求解；

The gas phase equations are solved in an Eulerian frame of reference with SIMPLE algorithm .

利用GPS建立地方独立坐标系

Founding Local Coordinate System by GPS Survey

GPS技术中坐标系的转换

Conversion of coordinates in GPS technology

基于斜角坐标系变换的星载SAR直接定位算法

The algorithm for direct geo-location of space-borne SAR imagery based on slant angle coordinate transformation

AutoCAD中的用户坐标系及其在三维建模中的应用

User Coordinate System in AutoCAD and Application in 3D Modeling

公路勘察GPSRTK测量中坐标系定义方法

Method for Coordinate Definition of GPS RTK in Highway Measuring

Flash坐标系的工作原理

How the Flash coordinate system works

阐述了在应用GPS技术建立区域独立坐标系过程中的椭球变换问题。

This paper discusses the ellipsoid transformation problem in the establishment of local independence coordinate reference system using GPS technique .

abc坐标系下广义无功电流和功率的定义及补偿

Definition and compensation of generalized instantaneous reactive current and reactive power in ABC coordinates

柱坐标系下FDTD算法的吸收边界条件

An Absorbing Boundary Condition for the FDTD Equations in the Cylindrical Coordinate

文中讨论了电力系统其他元件在abc坐标系下的模型，并进行了仿真实验。

Models of other elements in power system are also built in abc reference frame .

极坐标系下谱元方法求解不可压缩Navier-Stokes方程

Spectral element method in polar coordinate for incompressible Navier-Stokes equations

采用贴体坐标系下的SIMPLE方法研究了S形复合管道中三维周期性充分发展的层流流动。

The three dimensional periodic fully developed laminar flow in S-shaped composite pipes was studied using semi-implicit method for pressure linked equations ( SIMPLE ) scheme in the body-fitted coordinate system .

由于无法获取独立坐标系的椭球、投影等相关参数，直接使用GPS就有困难。

It is difficult to directly employ the GPS owing to the inaccessibility of the ellipsoidal parameters and projection parameters of the independent coordinate systems .

根据三相异步电动机在αβo坐标系下的数学模型和电压型逆变器的数学模型，用MATLAB语言编写仿真程序。

This paper uses MATLAB language to work out simulation program according to mathematical model of asynchronous motor in αβ o coordinates and voltage source inverter .

基于感应电机在静止A、B、C和转子速a、b、c两种坐标系下的数学模型，推导出一种转子电阻在线识别的新方法。

A new algorithm of the online rotor resistance estimator of induction motor is developed , based on the mathematical model of induction motor in stationary ABC and rotor abc reference frame .

数值计算采用了涡团耗散湍流燃烧模型、可实现k-ε湍流模型和离散坐标系辐射模型，SIMPLE压力速度耦合算法以及二阶精度迎风插值格式。

The eddy-dissipation turbulent combustion model , realizable k - ε turbulent model , discrete ordinates radiation model , SIMPLE pressure-velocity coupling method and second-order upwind discretization scheme were adopted in the numerical simulation .

第二，用活动坐标系实现龟形解释中的前进和旋转动作，并且使用OpenGL方便地实现。

The other is to implement the turtle 's movement including going forward and rotation using moving coordinates in OpenGL .

本文提出了Maxwell方程组基本的、适用于任意坐标系的张量公式及广义矩阵公式，还揭示了推求正交或非正交的曲线坐标系中Maxwell方程组的示例。

An example of deriving basic formulae of Maxwell 's equations in an arbitrary coordinates system is presented .

以航天器在惯性坐标系下位置速度向量误差为输入量，给出了一种全状态反馈控制律，利用Lyapunov方法证明该闭环系统是渐进稳定的；

The tracing errors are required based on mean elements . The asymptotic stability of the feedback system is proved with Lyapunov method .

利用从机器人控制柜获取实际工件上的3个特殊点位置，通过VB编程完成了工件坐标系标定。

By getting position data of three special points on the real work-piece and VB programming , the calibration of work-piece coordinate system is completed .

基于旋转坐标系，应用了一种电网电压定向的双闭环空间矢量调制的三相PWM整流器控制方法，并对空间矢量调制算法进行了研究。

Under the rotating coordinate system , a control method , named line-voltage-oriented dual-closed-loop voltage SVPWM method , is applied . And the SVPWM algorithm is studied .

利用光源投影坐标系处理SFS中的自阴影问题

Solving Self-shadow Problem of Shape from Shading in Light Source Projected System

本文针对非完整约束移动机器人纯滚动无滑动这个约束条件，设计了一种在极坐标系下基于Lyapunov函数的全局渐进镇定控制器。

This dissertation aim at the constraint condition that " pure roll without slippage ", designed an asymptotically stabilizing controller based on Lyapunov function under polar coordinates .

PML在三维柱坐标系下的应用及脉冲天线数值模拟

Application of Perfectly Matched Layer ( PML ) in Three Complex Dimension Coordinates and the Radiation Simulation of Pulse Antenna

首次引入PSD位置敏感器件对平台相对于大地坐标系微小转角进行测量。

This study firstly introduced the Position Sensitive Detector ( PSD ) into the system to measure slight rotation angle of SAR antenna relative to ground reference frame .