查询词典 robust statistics

Data in this chapter are prepared and edited by Division of Population and Employment Statistics, Division of National Economic Accounting, Division of Industry and Transport Statistics, Division of Statistics of Investment in Fixed Assets, Division of Trade and External Economic Relations Statistics, Division of Social and Technology Statistics, Division of Comprehensive Statistics of Municipal Bureau of Statistics and NBS Survey Office in Chongqing, on basis of data from related divisions of Municipal Bureau of Statistics, statistical bureaus of districts and from related municipal departments.

本章资料分别由市统计局人口就业处、核算处、工业交通处、固定资产投资处、贸易外经处、社会科技处、综合处和国家统计局重庆调查总队根据有关专业统计资料、各区县统计局资料和市级有关部门的区县资料整理编辑。

Based on these, an improving μ-synthesis is presented, with which the high-purity distillation is designed well. 2. The robust performance problem of MIMO plant is explained with the plant direction angle, which shows that the robust performance varies with different input uncertainties and the μ-synthesis should be applied correctly according to the uncertainty structure. 3. Condition number and bandwidth are the important items for robust performance design in MIMO system. The H〓 two-block problems can not deal with the robust performance design of MIMO system because of the condition number cancellation. A general μ-synthesis procedure for MIMO system with uncertainties is presented. 4. For the SISO system, the object function in robust performance is amplified by at most 〓 than that of H〓 two-block problems in value: So the robust performance of SISO system can be done with the H〓 two-block problems to avoid the complicated μ-synthesis procedure. 5. All the conclusions and methods presented in this paper are demonstrated by some typical design examples.

从而形成一种改进的μ综合方去，并对精馏塔病态对象进行了鲁棒性能设计，得到令人满意的结果；（2）利用对象的方向角解释了MIMO对象鲁棒性能设计出现问题的原因，并提出不同输入摄动形式下系统的鲁棒性能问题也并不相同，因此利用μ综合处理鲁棒性能设计时，应根据不同的摄动情况采用不同的结构进行设计：（3）条件数问题和带宽问题是MIMO系统鲁棒性能设计的两个主要问题，指出由于条件数对消的存在使得一般H〓两块问题无法处理MIMO系统的鲁棒性能设计，而μ综合方法则是处理MIMO系统鲁棒性能设计的有效方法，并给出了其处理MIMO系统鲁棒性能设计的一般性方法；（4）提出对于SISO系统H〓两块问题（S/T问题、S/KS问题）的设计指标函数与鲁棒性能设计的μ指标函数在数值上最大差〓倍，因此对于一般SISO系统的鲁棒性能设计可以简单地用一般的H〓的两块问题处理，而避免μ综合设计的复杂过程；（5）本文中提出的结论和算法都利用H〓/μ发展中的典型例子：Doyle-Stein问题，Safonov的战斗机模型，精馏塔对象等进行了设计验证。

Enterprise of a lot of milkings uses forms for reporting statistics now tool of this kind of government will have sale government , for instance sales promotion member forms for reporting statistics of sales promotion day , inventory forms for reporting statistics , contest tastes clerk of of the forms for reporting statistics that monitor to agency , big business exceeds visit the district director such as forms for reporting statistics , hodometer bussiness trip to forms for reporting statistics of monthly of hodometer bussiness trip , sale waits .

现在很多乳品企业都利用报表这种管理工具来进行营销管理，比如促销员有促销日报表，库存报表，竞品监测报表；业务员有经销商，大商超的拜访报表，出差行程表等；区域经理有出差行程表，销售月度报表等。

The problems of robust stability and robust stabilization for interval systems were discussed. A necessary and sufficient condition for the robust stability of a line segment polynomial was proposed. The tested results of robust stability of a polynomial polytope and robust stabilization of an interval system were obtained in terms of the condition.

讨论了区间系统的鲁棒稳定性和鲁棒镇定性的有限检验问题，给出了线段多项式鲁棒稳定性的充分必要条件，利用该条件对多项式多面体鲁棒稳定性和区间系统鲁棒镇定性进行了有限检验，并给出了相应的检验结果。

Because Traditional mean vector and covariance matrix are not robust estimator, this dissertation combines ideas of robust statistics with multivariable analysis method from robust statistics aspect.

所以，本文从稳健统计的角度出发，把稳健统计的思想加入到多变量统计分析方法中。

But because of the complexity of the robust statistics itself, there are seldom scholars currently in this area in our country, but as what the robust statistics aims at is the widespread and actual problem in statistics, this method is very important theoretically and realistically whatever to science studies or to the related economic policymaking, so the writer think that its development foreground is considerable.

但是由于稳健统计学本身的相对复杂性，目前我国学者对稳健统计学的研究还很少，而稳健统计学所针对的是统计学中一个普遍而实际的问题，这套方法无论是对科学研究还是对相关部门经济政策的制定都有着重要的理论意义和现实意义，因此笔者认为它的发展前景是可观的。

Statistics analysis is becoming more arduous and important as in now economy age statistics information affects the policy-making by the manager of enterprise. At present, there exists some problems in statistics analysis that it's hard to touch and reveal the true facts to analyse, so we can only judge the case as it stands. Therefore, to change the matter, statistics members have to collect a vast amount of data, master basic statistics theory?methods and certain academic knowledge proficiently, clear som...

新经济时代统计信息影响企业管理层决策成败，统计分析的任务更趋繁重，作用更显重要；现阶段统计分析存在着一些问题，统计难以接触、揭示真实情况，统计分析也只能是就数论数；要改变这种情况，统计人员必须大量收集资料，熟练掌握统计基本理论、方法及一定的专业知识，明了党和国家有关方针政策，有效发挥统计分析作用，开展专题分析，不断创新，开辟新视角、新思路，采用科学方法，运用现代技术，做好统计分析，提高统计质量。

In this project, we have tackled the robust fault detection and diagnosis problem for affine nonlinear sampled-data systems based on nonlinear H∞ filtering theory,and focused on the design of robust fault dtetction filter. The main contribution of this project is that we (1)present design methods of robust fault estimator for nonlinear discrete-time systems based on least square estimation and linear matrix inequality;(2)improve the bounded real lemma of systems with finite discrete jumps;(3)develop the robust fault detection filters for affine nonlinear sampled-data systems with parameter uncertainties based on the improved bounded real lemma.

本项目以提高故障的正确检测率为目的，以非线性H∞滤波理论为基础，对不确定仿射非线性采样系统的鲁棒故障检测与诊断问题进行了研究，重点研究了不确定仿射非线性采样系统的鲁棒故障检测滤波器设计问题，取得了一些新的成果，主要成果有：(1)基于最小二乘估计和线性矩阵不等式，给出了非线性离散系统的鲁棒故障估计器设计方法；(2)改进了有限跳跃点系统的有界实引理；（3）基于改进的有界实引理，给出了不确定仿射非线性采样系统的鲁棒故障检测滤波器的设计方法。

In this paper, three robust estimators: robust best invariant quadratic unbiased estimator, robust minimum norm quadratic unbiased estimator and robust Helmert estimator have been designed. Finally, this paper states that these three classical estimators are particular cases of the RBIQUE.

导出了稳健最优不变二次无偏估计、稳健最小范数二次无偏估计、稳健Helmert估计，并说明了最优不变二次无偏估计、最小范数二次无偏估计以及Helmert估计等均是稳健最优不变二次无偏估计的特例。

Several important concepts in robust design such as robust stability, robust performance,μ-stability and quadratic stability are studied. The conservatism in each robust test is also given.

对鲁棒稳定性、鲁棒性能，如μ-稳定性和二次型稳定性等控制系统鲁棒设计中的一些重要概念和相应的判据进行了研究，分析了它们的保守性。

Objective:To compare the response control and attention of Schizophrenic patients with that of the healthy controls by Integrated Visual and Auditorycontinuous performance test. To quantitate the impairment of cognitive function in patients, and to explore the relationship between cognitive function and the severity of the disorder.

目的：探讨精神分裂症病人在IVA持续操作测试中的反应控制能力、注意力等，并与健康人进行比较，从而量化精神分裂症病人的认知功能损害，并进一步探讨其认知功能与疾病严重程度的关系。

Main effective factors including subcooling degree, mechanical vibration, gas hydrate reformation, environment temperature, noncondensing gas and surfactant are analyzed.

指出过冷度、机械振动、重复生成水合物、环境温度、不凝性气体、添加剂是影响气体水合物生成的主要因素，还对R152a水合物的放冷进行了实验研究。