查询词典 error model

The ellipse curre equation of circular image is derived based on the theory of spatial analytic geometry and rotation matrix s representation with unit quaternion then a mathematical model of the distortion error is established which relates the distortion error to the foca length of the used CCD camera,the radius as well as the position and the attitude of the inspected circle directly.

研究三维视觉检测中圆的中心经针孔摄像机成像后存在畸变误差的问题，首先基于空间解析几何理论和旋转矩阵的四元数表示法推导出像平面上投影椭圆的参数方程；然后根据参数方程建立圆中心成像畸变误差的数学模型；最后对影响畸变误差的主要因素进行分析。

The experimental results indicate that combining durational model with traditional recognition algorithm can effectively reduce both the deletion and insertion error rate and consequently about 47.74% total recognition error rate reduction is achieved over the baseline system.

实验表明，结合持续时间模型的语音识别算法可以有效地减少删除与插入错误率，使总体识别错误率比基带系统减少了47.74%。

By Error Correction Model and Granger Noncausality Test, we got the conclusions: the two-quote mechanism has the function of rapid error correction and information transmission; competitive market maker system promotes the efficiency of the market.

运用做市商报价调整的误差修正模型，并对报价与成交净价之间进行 Granger 非因果检验发现，做市商双边报价机制具有迅速纠错的功能和信息传导的功能，竞争性做市商制度具有更高市场效率。

Temperature variation is a nonnegligible factor causing big biasing error. How to evaluate and compensate this error relates directly to the measurement accuracy. In the past, the time-sequence model was used to evaluate and compensate the temperature drift.

温度漂移是存在于IFOG系统中使得输出信号产生较大偏置误差的一种不可忽略因素，如何准确地预估漂移并有效地对其进行补偿直接关系到陀螺的测量精度。

An improved UKF method is proposed and applied to the nonlinear initial alignment of SINS on the stationary base. Simulation results illustrate that the given method has a better performance in the estimation of the azimuth error than the EKF, traditional UKF and scaled SSUKF does. Based on the dynamic error equations of SINS, the mathematics model of the IMU/GPS integrated navigation system is derived for Kalman filtering.

此外，论文还分析和研究了捷联惯性导航系统的力学方程编排和惯性仪表的误差，建立了IMU/GPS组合导航系统的状态方程和量测方程，设计和开发了用于机载SAR运动补偿的组合导航实验系统，并对设计的组合系统进行了大量的静态实验和车载实验。

The features of involute gear profile are mapping analyzed, the principle and method of on machine measuring the longitudinal form error of bull gear s with the rack probe is introduced, the data evaluation model of longitudinal form error is established, and a measuring example is given.

对渐开线齿轮廓面特性进行了映射分析，介绍了齿条刃边测头在机测量大型齿轮齿向误差的基本原理及测量方案，建立了齿向误差的数据评定模型，并给出了测量实

Fully considered the structure and process characteristics of strip mill shape detection equipment,through plenty of field experiments and theory study,a set of error analysis model fit for strip mill shape detection equipment has been set up for the first time with combining theory of the classical mechanics and modern computer technology,which will create the right complex error compensation scheme and put it into the productive practice.

充分考虑板带轧机板形检测设备的结构与工艺特点，经过大量的现场试验与理论研究，将经典力学理论与现代计算技术有机结合，首次建立了一套适合于板带轧机板形检测设备系统误差分析模型，给出了相应的误差综合补偿方案，并将其应用到生产实践，对不同张力下检测辊的挠曲、倾斜、磨损等因素进行了综合补偿，大大降低了现场的板形封锁率，给企业取得了较大的经济效益，具有进一步推广应用的价值。

The accuracy of this semi-analytical inversing model was validated by using the larger-scale in-situ data, and the result shows that the correlation is 0.84 with the relative error 22.6% and absolute error 4.7 m.

利用大量实测透明度资料对模式进行了验证，结果表明遥感反演透明度与实测透明度的相关系数为0.84，绝对平均误差为4.17m，相对平均误差为22.6%。

The inputs required by the control model are loopers′ height error E and the error change rate EC.

针对板带热连轧机传统的活套高度控制策略存在的问题，提出用Fuzzy-PID复合控制策略。

Firstly, PLL linear model is established in order for the comparative analysis between phase step error response and phase rectangular-pulse error response under different damping ratio. The ideal PD waveform expression is figured out.

首先通过建立锁相环的线性化模型，对比分析了不同阻尼系数的相位阶跃误差响应和矩形相位误差响应，推导了理想状态下鉴相器输出的波形表达式。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。