自动化专业英语试卷及答案.doc

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1、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②Convergence收敛③Covariance方差④Stochastic随机⑤Equivalence等价⑥Dynamicequation动态方程⑦Criteria判据、评价标准⑧MeasurementModel测量模型⑨Partialderivativeequation偏微分方程⑩Inthesenseofprobability在概率意义上，依概率2.Explainthefollowingsymbol

2、sinEnglish①thesecondorderderivativeofsub,bdoubleprimesubm②isequivalentto③approaches④thepartialderivativeofwithrespectiveto⑤integralbetweenlimitsto⑥a‖bisparallelto⑦thecuberootof⑧setiscontainedin⑨plusminusmultiplied,alldividedbyequals⑩foranyspecial,thereisarespected,suchthatapproachesasa

3、pproaches二、TranslatethefollowingparagraphsintoChineseParagraphA[8Points]Asubsetissaidtobeboundedifthereexistssuchthatforall.ThediameterofAisdefinedtobe.AboundedmetricspaceisoneforwhichXitselfisbounded.BoundedintervalsinRareboundedsets.Adiscretemetricspaceisbounded(take).译文：一个子集被称为是有界的，

4、如果存在使得对所有有。的半径被定义为。有界度量空间是指本身有界的空间。在上有界的区间是一个有界集。离散度量空间是有界的（取）ParagraphB[8Points]Ingeneral,itisnotrequiredthatthereferencedynamicmodelbeexactlythesameasthetruthdynamicsorthatthemodelingparameterbeequivalenttothetruemodelingvector.ThisnotationisleftinplacetosimplifythederivationoftheKal

5、manfilterformulation.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

6、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,andpartialderi

7、vativeshavebeencoded,thetaskremainedistotunethenoisemagnitudesrepresentedintheprocessnoisecovarianceQandthemeasurementnoisecovarianceR.Whilethemeasurementnoisecanbebasedinrealistichardwareperformancespecifications,theprocessnoiseisoftenusedasatuningparametertoensurethatthefilteropera