指标误差

The performance of the proposed method is compared with that of the well-known vector standard filters such as the VMF, progressive switch median filter, scalar median filter ,minimum distance between central sample and scalar median in its neighborhood vector median filter and the basic vector directional filter.

结果表明，DMNVM滤波性能明显优于现有的VMF、递进开关中值滤波、标量中值滤波、与标量中值距离最小向量滤波和方向矢量中值滤波；同近年提出的自适应向量滤波比较，AVMF客观指标平均绝对误差协MAE、均方误差和标准色差分别是DMNVM的1.81、2.59和2.17倍，这说明DMNVM的滤波性能有显著提高。

This method is applied in gasoline Low-Resolution Raman spectra data preproc he max positive/negative error and root mean squares error of cross validation of the partial least square model based on spectra after preprocessing is used to build are selected as criterion.

将其应用于汽油低分辨率拉曼光谱的预处理，并采用预处理后光谱建立的偏最小二乘模型预测值的最大正负误差和交叉检验的均方误差作为指标。

A new switching scheme to the gain of variable structure control signals is proposed. The following important open problems in standard VS-MRAC and MRAC are solved by using the scheme: 1 . a prespecified transient and steady-state performance index for tracking error can be achieved without requiring any information about the plant high frequency gain sign when relative degree of modelled part of plant is one, and 2 . it is shown that as long as the performance indexes are guaranteed for the auxiliary errors, each of which in dynamics is a sub-system with relative degree one, the tracing error will converge to a small residual set in a prespecified transient time when relative degree of modelled part of plant is greater than one.

提出了一种控制增益可切换的变结构自适应律，解决了如下变结构模型参考自适应控制（包括基于调参律的模型参考自适应控制）理论研究中长期没有解决的问题：当对象建模部分相对阶为1、高频增益符号未知且存在非线性输入扰动和未建模动态等情况下，系统跟踪误差可满足预先给定的动态和稳态性能指标；当对象建模部分相对阶大于1且存在非线性输入扰动和未建模动态时，可保证系统跟踪误差在预先给定的过渡过程时间内收敛到一个残差集中； 5。

A large number of commercial data were simulated, and the high performance of the soft-sensor is demonstrated by the fact that the maximum relative error, relative root mean square error and tracking precision are 2.68%, 0.17% and 0.9569, respectively.

针对大量工业数据，进行仿真计算，得到模型的最大相对误差、相对均方误差和跟踪性能指标分别为2.68%、0.17%和0.9569，说明该软测量模型具有良好的预测能力和跟踪性能。

The development process is guided and the performance index of the theodolite is evaluated by analyzing the digital model.

初步确定了光电经纬仪系统建模的仿真开发环境和具体的建模仿真的实现方法，实现在设计阶段对光电经纬仪性能的分析评价和工作过程的模拟，对误差的仿真检测实际样机的设计精度指标是否符合要求，为光电经纬仪的误差分析、研制过程提供了理论参考。

Results proved that the system could satisfactorily meet the tolerance limit of less than10%set by the design criteria.

结果： 系泊试验时报警仪的测量误差%；航行试验时的测量误差%；满足了设计指标0%的要求。

The main error items are especially analyzed by the method of numerical simulation,and the total error and the actual precision index is also presented.

给出了装置的主要设计参量；用数值模拟的方法分析了主要误差项，求出了总误差和实际准确度指标。

A general laser scanning altimetry equation is developed that describes an ideal system, followed by developing an error model for the laser scanner, and the INS and GPS units. The result is a modified laser equation that contains all errors introduced. The error model is evaluated by analyzing the difference between errorless equation and laser equation with errors.

本文从机载激光扫描测高对地定位的几何模型出发，详细推导了各项误差对机载激光扫描测高对地定位结果的影响关系式；详细分析了不同误差对激光脚点坐标的影响规律，并给出了相应的数值结果和量化指标。

This paper has described the basic function and qualification of the compensating brake master cylinder admeasuring apparatus firstly, given an introduction of gross structure, measuring principle and method, put its emphasis on the dissertation of working principle of main composing parts, such as endoscopic-micro optical system, CCD pick up camera and precision machinery system, and on the design of optical imaging system. It has analyzed the main error and the influence on measuring accuracy as well as giving a conclusion of error analysis.

本文首先叙述了制动主缸补偿孔测量仪的基本功能和技术指标，接着介绍了仪器的总体结构、检测原理与方法，重点对系统的主要组成部分，如内窥显微光学成像系统、CCD摄像机和精密机械系统等的工作原理进行了论述，并对光学成像系统进行了设计，最后分析了系统的主要误差来源及其对系统检测精度的影响，并给出误差分析结论。

New coefficients of the equation are developed, then a set of coning error compensation algorithm is derived.

本文丰富和完善了新的圆锥补偿算法设计方法，并利用新的设计方法给出了7种新的圆锥补偿算法，在计算量增加不多的情况下，提高了圆锥误差的补偿精度；圆锥补偿后的剩余误差是评价圆锥补偿精度的重要指标，也是工程实际中设计圆锥补偿算法的重要依据，本文给出了新的圆锥补偿算法精度评定方法，既可以评价圆锥补偿算法的精度，又方便于实际应用

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。