精度

IHT is make used of to proceed line edge fitting in the actual engineering. The auto-adaptable image edge detection method is applied to detect image edge in real project, and the region of image edge detected is limited within 1 pixel. IHT is also applied to fit line edge. Comparing with MHT, the result of IHT indicates its speed quick, the accuracy high, and anti-jamming-quality strong, exactly said that the accuracy of IHT fitted line is less than 0.1 pixel for polar distance and less than 0.01deg for polar angle.

自适应边缘检测方法被应用于检测实际工程的图像边缘，检测到的边缘区域在亚像素之内；修正的Hough 变换算法也被运用于相应工程的直线拟合，与传统的Hough算法相比，结果表明其速度更快、精度更高，抗干扰能力更强，其拟合直线的极径精度可达到0.1个像素，极角精度可达0.01度。

Distributing control point used of straight closed traverse and using of distance measurement polar coordinates and near distance high degree level measuring method to do deformation measuring for the plugging water curtain wall.

用直伸闭合导线布设控制点，以测距极坐标和近距高等级水准测量方法对堵水帷幕墙进行变形测量，有利于提高观测精度，能消除横向误差对监测点位精度的影响，精度及效果较

The precision die-cutting equipment including die-cutting tool of precision and accuracy of the die cutting parts.

模切装置的精度包括模切刀的精度和模切部件的精度。

By using testing functions to make comparative research on the precision of approximate models which were built by RBF under the condition of different sample amounts and different kernel function types, a conclusion was drawn: the model quality built by Reciprocal Multiquadric RBF as kernel function was highest when the sample amout was big, and the model quality built by Gaussian RBF as kernel function was highest when the sample amount was small.

运用测试函数对在不同样本数量与不同核函数形式下所建立的近似模型的精度进行对比研究，得出逆多二次函数与高斯函数作为核函数分别在大样本和小样本情况下精度最高的结论，并验证了径向基函数近似模型方法能够兼顾效率与精度。

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。

Simulation results indicate that remanence and magnetometer bias can be estimated correctly by this method.

仿真结果表明：该方法能准确估计卫星剩余磁矩与磁强计偏置，磁强计偏置的标定精度在1nT左右，剩余磁矩的标定精度为0.0001A·m^2量级，有效消除了剩磁对无陀螺卫星姿态确定的影响，显著提高了姿态确定精度，滤波器能在500s内收敛。

The construction process are multiple parameters (such as partial-top, arch axis and elevation changes, etc.) real-time monitoring system controlled by the large-span cable crane rigger arch beam, the system pegging Cable-Stayed deduction deduction for arch beam geometric precision and adjust successfully to a high-precision steel pipe arch-arch-long, concrete-filled steel tube ensures the integrity and stability, effective control of the construction process are arch axis geometric precision.

施工过程中多参数控制实时监测系统，采用大跨度的缆索吊机吊运拱肋梁段，斜拉扣挂体系扣定拱肋梁段并调整几何精度，成功地将钢管拱肋高精度合龙成拱，保证了钢管混凝土的整体性和稳定性，有效控制施工过程中拱轴线几何精度。

Experiments of two areas prove that the mathematical model for SPOT5 HRS stereo mapping is correct, and it can achieve a good precision. The experiments also prove that the formula of satellite stereophotogrammetry is right, and it can be applied to estimate theoretical precision of other satellite stereophotogramm-etry.

通过对两个实验区的实验证明本文的SPOT5 HRS立体测图的数学模型是下确的，并能够达到较好的精度；实验也证明了本文推导的卫星立体摄影测量的理论精度估算公式是正确的，并适用于其他卫星立体摄影测量理论精度的估算。

The attitude updating accuracy of quaternion algorithm and equivalent rotating vector algorithm was compared.

对四元数法和等效转动矢量法的滚转弹姿态解算精度进行比较，并通过打击机动目标的仿真试验验证了姿态解算精度对制导精度的影响。

In this thesis, we has made research in ScanSAR mechanism and imaging theory, which is the base of studies on imaging radiometric precision and accuracy, including causation and correcting technology of ScanSAR azimuth scalloping distortion.

本文对星载ScanSAR的工作机制和成像原理进行了研究，对ScanSAR成像处理器辐射精度的影响因素进行了理论分析，并研究了影响ScanSAR 方位向成像精度的扇贝效应的成因、对成像辐射精度的影响及其校正技术。

I smile at your play with that little bit of a broken twig.

我微笑着看你玩那一段小小的树枝。

They may be produced for almost any shaft angle.

他们可能在制作中几乎任何一个轴角。