自动化专业英语试卷及答案.docx

自动化专业英语试卷及答案

第一篇：自动化专业英语试卷及答案2008年秋冬学期研究生专业英语期末考试试卷参考答案1.TranslatethefollowingwordsorphrasesintoChinese①Metric度量收敛方差随机等价动态方程判据、评价标准测量模型偏微分方程在概率意义上，依概率②Convergence③Covariance④Stochastic⑤Equivalence⑥Dynamicequation⑦Criteria⑧MeasurementModel⑨Partialderivativeequation⑩Inthesenseofprobability2.ExplainthefollowingsymbolsinEnglish①bmthesecondorderderivativeofbsubm,bdoubleprimesubm②③④ABAisequivalenttoapproachesaBxiaxiyyxxthepartialderivativeofwithrespectivetoa⑤b⑥a‖b⑦⑧3ffintegralbetweenlimitsbtoaaisparalleltothecuberootofsetaAbXaaAXiscontainedinbd⑨abcdepidedby⑩eplusminuscmultiplied,allequals,N,s.taiaasiforanyspecial,thereisarespectedN,suchthataiapproachesaasiapproaches二、TranslatethefollowingparagraphsintoChineseParagraphA[8Points]Asubsetd(x,y)MAXissaidtobeboundedifthereexistsx,yAMRsuchthatforall.ThediameterofAisdefinedtobesupd(x,y)x,yA.AboundedmetricspaceisoneforwhichXitselfisbounded.BoundedintervalsinRareboundedsets.Adiscretemetricspaceisbounded(take译文：一个子集Ad(x,y)MM1).X被称为是有界的，如果存在Mx,yAR使得对所有x,yA有。A的半径被定义为supd(x,y)。有界度量空间是指X本1）身有界的空间。在R上有界的区间是一个有界集。离散度量空间是有界的（取MParagraphB[8Points]Ingeneral,itisnotrequiredthatthereferencedynamicmodelbeexactlythesameasthetruthdynamicsorthatthemodelingparameterαbeequivalenttothetruemodelingvector.ThisnotationisleftinplacetosimplifythederivationoftheKalmanfilterformulation.Anumberofinnovativeapproacheshavebeendevelopedforadaptingreferencemodelparameterstoimprovefidelity(逼真度)withtheunknownreal-worldsystemmodelandcanbeusedtoenhancefilteroperation.译文：一般来说，并不需要参考动态模型与实际动态模型完全相同，或模型参数a与实际模型矢量相等。这个记号保留下来只是为了简化Kalman滤波公式的推导。大量的改进方法也已被开发出来用于调整参考模型的参数使其与未知的实际系统更接近，这些方法也能被用于增强滤波器运行效果。ParagraphC[8Points]ItiscommonlyheldamongdesignersofKalmanfiltersthattheimplementationoftheformulaslistedaboverepresentsonlyaportionoftheeffortrequiredtodevelopanaccurateandrobustKalmanfilterapplication.Oncethedynamics,measurements,andpartialderivativeshavebeencoded,thetaskremainedistotunethenoisemagnitudesrepresentedintheprocessnoiseco