1) Error estimation system
误差预计系统
2) error estimation
误差预计
1.
Based on actual conditions of second-phase project,a suggestion for error estimation and survey plan has been put forward.
首次提出利用转轴方程计算在巷道指定方向上的终点误差,并根据铜矿峪矿二期工程实际状况提出误差预计、施测方案建议。
2.
The formula for the adjustment of inserting individual control point by trilateriation and error estimation of through survey have been derived in detailm and illustrated through computation of case examples.
并对于平差计算及贯通测量误差预计进行了详细的公式推导。
3.
Based on the Beijing -Shanghai high -speed railway wooden -stone tunnel project,this paper introduced the optimization and error estimation of the tunnel transfixion survey,to ensure accuracy of the tunnel transfixion and accumulated valuable experience for similar projects in the future.
结合京沪高速铁路木石隧道工程,系统介绍隧道贯通测量方案优化与误差预计,从而确保隧道贯通精度,为今后类似工程积累了宝贵的经验。
3) error prediction
误差预计
1.
In order to solve the problem that the actual errors can not be represented clearly in the tunnel-crossing measurement using procedure parameters for error prediction.
针对贯通测量中采用规程参数进行误差预计不能完全反映实际测量误差的问题,提出了采用测量实际统计参数对贯通测量误差进行预计,并在实际工程中将用统计参数和规程参数预计的误差与实际测量偏差值进行对比,得出:在贯通测量误差预计中,采用实际统计参数比用规程参数进行贯通测量误差预计更能提高测量误差预计精度。
2.
By the solution selection for the run-through measurement of the inclined shaft anti-de-sac and error prediction obtaining that the important direction run-through error was 0.
通过选择斜井反掘贯通测量的方法,并进行误差预计,得出贯通重要方向误差为0。
4) determinate error
预计误差
5) Systematic error estimation
系统误差估计
1.
Systematic error estimation is an important process for data fusion and target tracking in radar networking system, and observability is the key factor which determines the estimation accuracy.
系统误差估计是雷达组网融合跟踪系统的重要环节,而可观测度又是决定误差估计效果的关键因素。
2.
Actually,it′s hard to describe the observability quantitatively,so an indirect observability detection method is proposed in this paper,which focuses on how to measure the precision of systematic error estimation in unknown observability condition.
现实中,一般难以定量描述系统的可观测度,因此本文首先提出了一种间接的可观测度检测方法,用于衡量未知可观测度条件下系统误差估计的精度。
6) computational systematical errors
计算性系统误差
补充资料：【系统误差】(systematicerror)
【系统误差】(systematicerror)
亦称“恒定误差”。在同一条件下多次测量同一量时，误差的数值和符号保持不变，或在条件改变时，按某一确定的规律变化的误差。产生的主要原因：（1）分析方法不完善。如在重量分析中，由于沉淀的溶解和共沉淀现象等；在职滴定分析中，由于反应进行不完全和*等当点与滴定终点不符合等，均将系统地影响测定结果偏高或偏低。（2）仪器本身不够精确。如砝码重量、容量器皿刻度等。（3）试剂不纯。（4）操作者主观上带来的误差。如对滴定终点颜色的辨别不同等。为保证分析结果的准确度，对这类误差必须尽量减小以致消除。常采用标准试样和标准方法来进行校正，或由不同单位、不同人员测得的结果，进行对照和评价，从而得出校正系数以消除之。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条