查询词典 error analysis

Principal component analysis is a successful feature detection method for pattern recognition. It is the optimal dimension compression technique based on second-order information in the sense of mean-square error.

主分量分析是一种在众多生物特征识别中获得成功应用的特征提取技术，是一种基于二阶统计的在最小均方误差意义上的最优维数据压缩技术，它所提取的各特征分量之间是互不相关的。

Aviation University of Air Force, Changchun 130022, ChinaAiming at the characteristics and test requirements of airborne weapons, the transverse adaptive digital filter was built with least mean-square error algorithm based on the analysis of ADF structure and optimization evaluation, and according to the design process of field programmable gate array.

针对飞机机载武器设备特点和测试维修要求，在分析了自适应滤波器的结构、最优评估等特性基础上，根据现场可编程门阵列的设计过程，构建了基于最小均方误差算法的横向自适应滤波器。

By the modem time series analysis method, based on the ARMA innovation model, under the linear minimum variance optimal information fusion criterion, three distributed fusion steady-state optimal Kalman filters, predictors and smoothers weighted by matrices, scalars, and diagonal matrices are presented for multisensor systems with correlated input and observation noises, and with correlated observation noises. The Lyapunov equations and formulas of computing local filtering, predicting and smoothing error variances and covariances are given, which are applied to compute optimal weights. The corresponding three distributed fusion Wiener state estimators are also presented.

应用现代时间序列分析方法，基于自回归滑动平均新息模型，在线性最小方差最优信息融合准则下，对于带相关输入噪声和观测噪声和带相关的观测噪声的多传感器系统，提出了按矩阵加权、按标量加权和按对角阵加权的三种分布式融合稳态Kalman滤波器、预报器和平滑器，其中提出了局部滤波、预报和平滑估值误差方差阵和协方差阵的Lyapunov方程和计算公式，它们被用于计算最优加权，也提出了相应的三种分布式融合Wiener状念估值器。

Natural gas ; Gas pipeline ; Orifice meter ; Measurement error ; Calculation ; Analysis

天然气；输气管道；孔板流量计；测量误差；计算；分析

This article mainly introduced the city guard rail sweeps clear the vehicle in the development present situation and the present technology insufficiency, has analyzed the domestic formation product technical characteristic and the good and bad points, obtains the present water spray vehicle chassis situation through the contrast, then chooses this design through the analysis comparison each kind of plan, for instance said obtains the hydraulic transmission through the crosswise comparison to teach the mechanical drive the merit, then the further showing hydraulic transmission plan arrangement, obtains the entire wrap equipment on vehicle scheme of arrangement through the analogy, but also absorbs a present more advanced position to correct an error the system.

购买设计，请点击这里和我们直接沟通 QQ：95343510摘要：本文主要介绍了城市护栏清扫车的发展现状和目前技术上的不足，分析了国内成型产品的技术特点和优缺点，通过对比得到目前洒水车的底盘情况，然后通过分析比较选择该设计的各种方案，比如说通过横向比较得出液压传动教机械传动的优点，然后更进一步说明液压传动的方案布置，通过类比得出整套装置在车上的布置方案，还吸收了目前较为先进的位置纠偏系统。

Theory analysis showed that the method of two-position alignment increases the observability degree of state variables, especially for the error of accelerometer and azimuth misalignment.

理论分析结果表明，两位置对准可以提高系统状态变量的可观测度，尤其对加速度计误差和方位失准角的可观测度提高作用明显。

Investigation on the sampling error of two-component particulate mixture is very essential to the general theory of sampling for chemical analysis.

二元颗粒混合物的随机取样方式有两种：一是按颗粒数目取样，二是按质量取样。

Investigation on the sampling error of two-component Particulate mixture is very essential to the general theory of sampling for chemical analysis.

本文对二元颗粒混合物按质量取样的误差进行了深入研究，详细分析了混合物的各种参数对被测组分含量取样误差的影响，应用MonteCarlo技术对取样进行了模拟。

After that,the approach is presented,which assure that the spiral bevel gears have the high real contact ratio and the lower sensitivity to error.3 The method of geometrical and mechanical analysis is represented on the tooth edge contact in the gears transmission.

结合加工参数设计的局部综合法、几何接触分析、承载接触分析及应力过程数值仿真，构成了具有反馈的闭环优化设计回路，并形成了相应的软件系统，为设计啮合性能良好、高强度、低噪声的弧齿锥齿轮传动提供了有效的工具。

The topology of the three-phase three-wire voltage-type active power filter is analyzed. Based on the analysis, a novel control strategy is developed. Its objective is to minimize the composite error of the three-phase source current whose correlation control can be realized at the same time.

在分析三相三线电压型有源滤波器拓扑结构的基础上，提出了三相电流综合误差最小的开关控制策略，实现了三相电流的关联控制。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷