Parallel projection of the affine coordinate system has a significant impact on computer graphics recognition, object's tracking or solid model reconstruction.
空间仿射坐标系的平行投影问题在计算机图形识别、跟踪目标及三维实体重建中具有重要意义。
The system performance variations for the railway track surveying due to the different choices of coordinate projection and system model description are analyzed .
针对轨道动态检测系统，分析了选择不同的坐标投影及系统模型描述对系统性能的影响。
Additionally, the coordinate principle of variable displacement pump with constant power control and load-sensing control system is demonstrated, and establish the constant power control model.
针对液压泵恒功率调节系统，建立了动态数学模型并对恒功率调节与负载传感系统的控制协调机理进行分析。
The conversion of coordinate model includes the conversion of geography coordinate system and the conversion of projection system.
坐标模型转换包括地理坐标系统和投影系统的转换。
Based on the theory of homogeneous transformation and DH method in robot kinematics, the coordinate measuring model of articulated arm system is established, the system measuring space is given.
利用机器人运动学中的齐次坐标变换理论和D - H坐标描述方法建立了关节机械臂系统的坐标测量数学模型，并给出了系统测量空间。
A six degree of freedom (DOF) nonlinear dynamic model of the airship was presented based on the body axes coordinate system with the origin at the center of the volume.
在以体积中心为原点的机体坐标系中，建立了完整的六自由度非线性模型。
The first work was to build an error model of target machine tool by combining the multi-body system theory and homogeneous coordinate transform.
首先结合多体系统理论和齐次坐标变换建立目标机床的误差模型；
The mathematical model of three-phase asynchronous motor in rotating coordinate system is established, and PWM technology of space vector is discussed.
建立了三相异步电动机在旋转坐标系下的数学模型，论述了空间矢量脉宽调制技术原理。
Then geometrical transformation matrix between views is obtained based on perspective projection model for X-ray angiography system, and 3D coordinate of spatial points are calculated.
然后根据冠脉造影系统的透视投影模型得到两幅不同角度的造影图像之间的几何变换关系，以及空间点三维坐标的计算方法。
The structure and permanent magnet synchronous motor model is presented, and then the mathematical model and state equation are structured based on the stationary and rotating coordinate system.
介绍了永磁同步电机的结构和模型，并在静止坐标系和旋转坐标系中建立数学模型和状态方程。
This paper puts forward the method of locating the 3D model in the screen coordinate in the design of the visual system of a submarine voyage training simulator.
该文主要论述了在潜艇航行训练模拟器三维视景仿真中，把三维模型投影到屏幕坐标系当中的方法。
A hail cloud model that is two dimensional elastic non hydrostatic, USES a terrain following coordinate system and includes double parameters for ice phase microphysics, has been developed.
建立了一个适用于复杂地形的冰雹云模式。模式是二维、弹性、非静力、采用地形跟随坐标、包含双变参数冰相微物理过程参数化。
The breathing behavior of the crack and the motion characteristic of crankshaft under operating condition were studied, and a model of nonlinear motion was established in a rotating coordinate system.
根据裂纹曲轴运动的特点及工作过程中裂纹开闭的实际情况，提出在旋转坐标系下建立其非线性振动模型。
In reverse engineering, in order to meet the requirements for model reconstruction, it is often necessary to locate and merge the different view measured cloud data in a global coordinate system.
在实物反求中，往往需要将从各个不同视角测得的点云数据进行多视定位，统一到一个全局坐标系下，并经过数据融合使之能够便于后续的模型重建。
The curvilinear semiorthogonal coordinate system and a turbulence model considering the anisotropy of eddy-viscosity are used.
计算中采用了半正交曲线坐标系和涡粘性各向异性湍流模型。
Because each model in VRML is created in local coordinate system, inconvenient to handle them uniformly, this paper infers a universal formula to transform model coordinates from UCS to WCS.
针对各VRML造型在其局部坐标系中创建，采用变换矩阵实现了造型从局部坐标系下到世界坐标系下的坐标变换。
A two-dimensional model for sailing was used to divide the voyage into several sections and obtain a corresponding coordinate system by a circumvolving and shifting operation.
该方法在比赛区域建立二维平面坐标系，将整个航程划分若干区段，通过坐标轴旋转和平移得到各区段的虚拟坐标系。
With computer visual technology, the relationship between 2-dimensional computer coordinate and 3-dimensional space coordinate system is built by camera model.
在计算机视觉中，二维计算机坐标和三维物体空间坐标的关系可通过摄像机模型来建立。
A transient heat-transfer mathematic model was established using a Lagrangian coordinate system in twin-roll aluminum trip casting and rolling process.
采用拉格朗日随体坐标建立了铝双辊铸轧过程瞬态传热数学模型。
According to the concept of relative time coordinate system, a new exponent model and its grade predicting method are proposed.
结合相对时间坐标系的概念，提出了一种改进的指数预测模型及其分级预测方法，并对双曲线模型进行了推广。
The present study deals with the numerical calculation of the turbulent flow around airfoils in the orthogonal curvilinear coordinate system with the aid of the so-called viscous-layer model.
本文应用粘性层模型，采用贴体的正交曲线网格，对湍流流动进行了计算。
The mathematical model is composed of the following parts:1) Basic algorithm library: it covers the definition of coordinate system and Euler angles, as well as simulation algorithm library, etc.
基础算法库：包括常用坐标系定义、欧拉角的定义、仿真算法库的建立等。
First of all, the theory of double-fed induction generator is introduced. Mathematical model of double-fed induction generator in the two-phase synchronous rotating coordinate system is established.
首先，介绍双馈发电机的基本工作原理，建立在两相同步旋转坐标系下双馈发电机的数学模型。
So the saturated steady operation mathematical model of pulsating magnetic field PM low speed synchronous motor is constructed under phase coordinate system.
脉振磁场永磁低速同步电动机是一种新结构原理的永磁同步电动机。
Using the main coordinate law to study and analysing dynamic response characteristics of resonance type of system, setting up the mathematics model of the resonance type vibration system;
研究与分析了共振式振动系统的动态响应特性，建立了共振式振动系统的数学模型；
The general procedure to model planar linkage in non-inertial coordinate system by bond graphs is provided.
给出非惯性系平面连杆机构键合图模型的建立方法。
Parallel projection of the affine coordinate system has a significant impact on computer graphics recognition, objects tracking or solid model reconstruction.
空间仿射坐标系的平行投影问题在计算机图形识别、跟踪目标及三维实体重建中具有重要意义。
It also builds the mathematic model of all section of VSCF AC exited wind power generation system on ab-b and dq coordinate system by the coordinate commutation technology.
本文在仿真风速和风机特性的同时，构造整个系统模型并对变速恒频和恒速恒频技术的优缺点进行了仿真分析比较。
It also builds the mathematic model of all section of VSCF AC exited wind power generation system on ab-b and dq coordinate system by the coordinate commutation technology.
本文在仿真风速和风机特性的同时，构造整个系统模型并对变速恒频和恒速恒频技术的优缺点进行了仿真分析比较。
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