其缺点是系统的建模误差或外部干扰将对故障诊断的结果产生重大的影响。
Its defect is the system modeling error or external disturbance to the results of the fault diagnosis will produce significant influence.
由于采用相邻的两圈预测下一圈的温度分布，因此可以作为卫星热故障诊断的依据，避免了误差的积累。
Temperature distribution predicted by last two circles can be the basis on thermal fault diagnosis for satellites. Meanwhile the error accumulation can be avoided.
目的建立室内质控参考品以鉴别诊断试剂的质量和控制操作误差，提高乙型肝炎病毒表面抗原的检测准确度。
Objective to establish internal quality control to distinguish the quality of diagnostic Kit and control operate error and improve the accuracy of HBsAg detection.
估值平均误差J是判断诊断精度的有效判据。
The averaged error of estimation J is an effective criterion for determining the diagnosis accuracy.
提出了自适应学习率及动量因子的BP神经网络算法和误差逼近度渐近收缩学习的BP神经网络算法，并将其应用于汽轮发电机组振动故障诊断与识别。
The improved BP algorithms based on adaptive parameters adjustment and error contracting gradually are presented, which are applied successfully to fault diagnosis of steam- turbine generator unit.
针对一类具有系统建模误差以及含传感器模型不确定项的非线性控制系统，本文提出了一种用于执行器故障检测与诊断的观测器方法。
Based on observer method, an algorithm of actuator fault detection and diagnosis is presented for a class of nonlinear control systems with system modeling errors and sensor modeling uncertainties.
分析了几种基本的系统误差模型，还对误差模型诊断的原理和方法进行了研究。
Some basic system error models are introduced, and theorem and method of diagnoses of error models is researched.
介绍了开关电流电路的基本单元结构，讨论了影响故障诊断精度的主要因素，重点分析了电荷注入误差。
The basic unit structure of the SI is introduced in this paper. It also discusses the main factors which affects the precision of fault diagnosis and analyzes the charge injection error in detail.
综合自联想网络的最优估计与故障诊断，自动区分估计误差和传感器故障。
Sensor fault detection is accomplished by integrating the optimal estimation and fault detection logic.
仿真计算结果表明该方法能够有效地发现和估计系统误差，同时指出在积分域进行匹配诊断和估计的精度要优于微分域匹配诊断。
Simulation results show that this method can detect and estimate the system error notably. Meanwhile the precision of matching diagnose in differential domain is higher than that in integral domain.
并对产品测试任务共性特征、系统集成原理、测试安全性、系统故障诊断功能、系统误差进行了分析。
And the general character, system integration principle, test security, system fail diagnosis and systematic error of the test task are analyzed.
分析了GPS卫星星历误差的影响特征与规律，提出了广播星历误差影响诊断与预测模型。
This paper analyzed the characters and rule of the satellite ephemeris error. It proposes the Model of the diagnosis and Forecast for the GPS broadcasting ephemeris error.
通过对以上问题的研究，希望能够使疾病诊断中由于人为因素所造成的诊断误差有所降低，同时也希望本文会对某些疾病基于语义网络的诊断方法研究有些许帮助。
I hope that the diagnosis error will be reduced through the research and the paper can help the peoples in research on the method to diagnose based on semantic network too.
基于试验模型的静力试验和振动试验结果与初始有限元模型计算结果的比较，展开对面向健康诊断的悬索桥有限元建模的模型误差分析。
To compare the results of static and dynamic test with initial finite element model calculations, error analysis of finite element modeling has been developed.
目的：研制一种舌象分析仪，该分析仪主要用于解决目前传统中医舌象诊断过程中存在的主客观误差等问题。
Objective to develop a kind of tongue image analysis instrument which is used to deal with the deviation problem on the process of tongue image analysis currently.
使用自适应谐振理论（ART）和误差反向传播（B）两种神经网络，开发了汽轮发电机组振动故障诊断模型。
The vibrating fault diagnosis system for turbo-generator unit based on ART and BP network is developed in this work.
轴承是故障发生率比较高的部件，用简易诊断法难免会出现人为的判断误差。
The bearings are the parts with higher malfunction occurrence rate, and it is hard to avoid appearance of the man-made judgment errors to utilize the simple diagnosis method.
应用神经网络的误差反向传播算法(BP)和大量的实测数据样本训练出了能在线诊断四种加工状态的BP模型并成功地诊断了实际加工状态。
The BP algorithm of Artificial Neural Networks and lots of experimental samples were used in training the BP model which succeeded in diagnosing four kinds of operational status.
故障诊断模型症兆变量与实际故障症兆变量变化值相对误差控制在5%内，且不会对故障类型的判断产生影响；
Relative errors between the deviation of the real fault symptom parameters and of the fault derived from the model are controlled less than 5%.
该方法物理意义明确，可以通过对故障诊断误差的学习，实时修正故障模型，实现对不确定性和慢时变性对象的鲁棒故障诊断。
The method which has definite physical meaning, can change fault diagnosis model to adapt to the variability and uncertainty of the plant by learning the fault diagnosis err.
结果表明，测量误差对过热元件的故障诊断影响较小。
The result shows that the method is useful for the fault diagnosis of the overheated components in electric control cabinets.
陈述了利用扫频信号源、标量网络分析仪和宽带喇叭天线等构成的系统对微波衰减测量的过程，对该方法的诊断误差进行了讨论。
The process of attenuation measurement is presented, which utilizes a system consisted of a sweep oscillator, a pair of broad-banded horns, and a scalar network analyzer, etc.
陈述了利用扫频信号源、标量网络分析仪和宽带喇叭天线等构成的系统对微波衰减测量的过程，对该方法的诊断误差进行了讨论。
The process of attenuation measurement is presented, which utilizes a system consisted of a sweep oscillator, a pair of broad-banded horns, and a scalar network analyzer, etc.
应用推荐