本文给出了数控车床的几何误差模型和一台数控车床的实测数据。
A geometric error model for CNC lathe and the measured data are presented in this paper.
分析了坐标测量机几何误差的几种常用模型，提出了基于神经网络的单项几何误差模型。
Several coordinate measuring machine geometry error models of several kinds in common use are analyzed in this paper.
利用建立的几何误差模型，可以准确计算出机床的几何误差，为机床误差补偿提供了理论依据。
Using this error model, the geometrical error of machine-tool can be calculated accurately, which offers a theory foundation for analyzing the error of it.
通过任意两坐标系间的向后微分关系，利用运动学方程以及并联机构的环路特性，建立了微机器人的广义几何误差模型。
The method represents the effects of all possible error sources on robotic mechanisms as generalized geometric errors in a unified manner.
此模型为串并联型机床敏感性分析、误差补偿和几何参数标定等提供了新的方法和手段。
The model provides a new method and means for the geometrical parameter calibration, sensitivity analysis and error compensation of the machine tool.
在简易柔性悬索桥桥型几何模型分析的基础上，对主索张力及其计算误差进行分析研究。
Based on the analysis of the geometrical models in a simple flexible suspension bridge, the skyline tension and its errors in calculation were analyzed.
由于坐标测量机几何误差变化规律复杂，采用一般的BP神经网络模型算法，速度慢且难以收敛。
Owing to the complicated variable rule of CMMs geometry error, it's difficult to convergence for using common BP neural network model arithmetic with a slow velocity.
本文提出了三维地理信息系统中几何特征的误差模型。
This paper presents the error models developed for handling geometric features in three dimensional Geographical Information Systems.
分析了齿坯几何偏心和变形对齿轮运动误差的影响；建立了左右齿廓形误差模型。
The effects of geometric eccentric and deformation of gear blank to motion errors is analyzed and an error model for gear's left and right tooth profiles is built.
基于三轴数控机床的空间误差模型，使用三维步距规识别数控机床空间几何误差。
Based on error model, the three dimension-stop gauge was used to identify the space errors of CNC machine tools.
以多体系统理论(MBS)为基础，建立了包含测头误差、机床几何误差、丝杠和主轴热误差的综合误差补偿模型。
Based on the theory of MBS, presenting the comprehensive errors model consisting of offset probe errors, geometric errors, screw thermal error and spindle error.
利用距离误差模型构造出机器人本体的约束方程，并求解出机器人的实际几何参数，进而将该参数应用于修正系统的运动学模型。
Constraint equations were constructed by using distance error model, and the actual geometric parameters of the robot were solved, and then these parameters were used in the modified kinematics model.
讨论了齿轮运动误差与模拟齿轮加工过程的关系；分析了齿坯几何偏心和变形对齿轮运动误差的影响；建立了左右齿廓形误差模型。
The effects of geometric eccentric and deformation of gear blank to motion errors is analyzed and an error model for gears left and right tooth profiles is built.
本文首先结合某打磨机器人的实际几何结构，建立了该机器人的误差模型，利用单点法来辨识几何参数误差值；
Combining its real geometrical structure, a polishing robot's error model is established and a single point method is used to identify the geometrical parameter errors.
形位误差的几何模型建立。
The geometric model of the geometric error evaluation is established.
在研究几何畸变模型的基础上，给出了一种基于网格点拟合直线误差的几何畸变校正方法，达到了很好的校正效果。
Based on the study of the model of geometric distortion, a correction method due to the linearity of crossing points in the image of grids were also advanced, which gained an ideal correction result.
摘要 ：使用距离多普勒模型进行SAR影象几何校正时，卫星轨道误差、系统成像参数误差和DEM高程的误差会影响几何校正精度。
Abstract : When using the Range-Doppler model for SAR image geometric correction, the error of satellite orbit, imaging parameter and DEM elevation will affect the geometric correction accuracy.
对于一般几何模型的非线性最小均方误差拟合，首先必须定义拟合误差，然后采用非线性最优化方法求解最小误差意义下的最优解。
Firstly, the error of fit must be defined for nonlinear least-square fitting of generalized geometry model. Then the nonlinear optimization algorithm can be used to obtain the optimum solution.
提出误差集聚法，可建立多误差因素共同作用下的切削加工数学模型，使之纳入机床加工过程的几何与物理误差。
A synthesizing method is developed to establish a mathematical model for describing the machining tolerance which synthesizes bo th the geometric and physical tolerance.
为了获取遥感影像几何纠正误差空间分布情况，提出一种纠正控制点误差传播模型。
In order to obtain a residual error map for remote sensing data after geometric correction, a GCP error propagation model was proposed.
首先给出了某单脉冲雷达低仰角多路径效应一个完整的仿真模型，包括：多路径传播几何模型、雷达天线模型、跟踪误差模型。
A complete simulation model for target tracking of a monopulse radar that works at low elevation angles with ground reflection multipath is given.
网络模型能够自动抑制含较大误差控制点对模型纠正精度的影响，在实际应用中可以提高几何纠正效率。
Collinearity Equation Model. Besides, the neural network can eliminate the influence of GCPs with gross error, and hence can better improve the efficiency.
网络模型能够自动抑制含较大误差控制点对模型纠正精度的影响，在实际应用中可以提高几何纠正效率。
Collinearity Equation Model. Besides, the neural network can eliminate the influence of GCPs with gross error, and hence can better improve the efficiency.
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