误差的补偿

On the basis of analyzing the scan error of a pentaprism, the principle of scan error compensation is put forward, and the quantized formulas and applying method of compensating the scan error are presented.

在分析五棱镜扫描误差的基础上提出了误差补偿原理，并给出了量化补偿公式及误差补偿原理的实现方法。

The technology of error compensation based on Multi-Body system and the design method of cam machining were combined together.

针对精密凸轮加工中存在的精度问题，推导出凸轮磨削中的理想砂轮中心包络线的求解方程，进而将基于多体系统理论的误差补偿技术与凸轮加工设计方法相结合，研究了理想数控指令的生成方法、砂轮轮廓误差的计算方法、精密数控指令和逆变凸轮廓型的求解算法，在此基础上，开发出凸轮精密磨削过程的误差补偿与动态仿真分析软件。

The quaternion calculation for spacecraft attitude determination is investigated in this paper,including the transformation between quaternion and the direction cosine matrix,the quaternion differential equation,the selection of time steps for integrating the quaternion equation,and the compensation methods for the noncommutativity error in high dynamic motion.

介绍了四元数计算中的相关问题，包括四元数与方向余弦阵之间的转换、四元数运动方程、求解四元数运动方程时积分步长的选取和高动态应用中非互易误差的补偿，此外还介绍了对偶四元数的发展。

Furthermore, accurate identification results are obtained. The effect of magnetic inrush current and measurement error of equivalent leakage inductance result is analyzed.

对励磁电流补偿项误差以及测量误差对参数辨识结果的影响分析表明，当辨识参数应用在精确度要求较高的场合，根据不同的情况，需要对误差项进行一定的补偿。

The inverse kinematic calculation is not required by the procedure given in this paper. With the interval method and simulation, the conclusion has been reached that, in most cases, robot calibration can be carried out in the nominal working space.

文中采用了参数误差的线性补偿方法，不仅不需要计算逆向运动学，而且可以利用参数误差识别部分求解的雅可比方程直接用来补偿计算，提高了效率。

By the method of mathematical statistics, the concept of dimensional chain is extended to ...

运用数理统计的方法，推广了"尺寸链"在船体建造中误差修正补偿的计算方法，建立了线性的、平面的、空间的平面分段的形位误差补偿环的补偿量计算公式。

Based on the vector law of refection in optics, the scanning error′s academic formula is educed.

分析表明，用激光及其扫描装置建立光学基准面时，扫描误差是不可避免的，这种误差不加补偿，则最终将引入基准光学平面影响基准精度，进而降低参数的评定精度；借助于所推导的误差补偿公式，是可以补偿这种误差的，这对于建立高精度的扫描基准平面具有理论指导意义。

Differing from the feed-back error compensation method, the selflearning error pre-compensation method offered by the paper is based on both ANN and time series technique to obtain the error pre-compensating curve using the non-linear ANN pre-compensation model. Because of the self-learning character of the ANN, this new type of precompensation model can be self-adjusted.

与常规的反馈补偿方法不同，本文提出的自学习误差预测补偿方法，将时间序列预测与神经网络的自学习自适应优化建模技术相结合，利用神经网络非线性预测模型产生误差预补偿函数，并利用神经网络的自学习特性对所建预测模型进行修正，所以这种新型的误差补偿方法能够获得更高的误差补偿精度和控制速度，简单实用，适于推广，具有生产应用价值。

In order to establish high precision laser scanning plane, the laser beam transmission is anatomized in the formation of the scanning plane.

为了建立高精度的激光扫描基准平面，对扫描平面形成过程中光束的传播进行了详细分析；根据光学矢量反射定律，推导出了扫描误差的理论公式；在此基础上揭示了误差补偿的基本原理，导出了用于补偿扫描机构产生的扫描误差的理论公式；提出了据此准则进行设计的扫描机构的模型。

operation process and arithmetic of the two-position gyro-based north seeker are introduced.

文章介绍了二位置陀螺寻北仪工作过程及算法原理，它采用陀螺仪在相差180°的两点上采样相互对消陀螺常值漂移的方法，提高寻北精度；其突出特点是结构简单，实现方便，精度较好；为了提高寻北精度和缩短寻北时间，文章找出误差源中的转位误差，并分析了转位误差对寻北误差的影响，推导了误差公式，得出转位误差引起的寻北误差是一个常量的结论，同时提出了转位误差的测量与补偿方法。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了