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页数:34页
时间:2019-10-13
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1、题目:口己设定内容:有关离散傅立叶变换或者FFT(快速傅立叶变换)或者最小二乘法方面,既可以是相关的理论阐述也可以是有关的应用报告或者相关方面的发展综述等参考文献和文章长度:小文参考文献不少于10篇,英文参考文献2篇,文章长度不少于普通A4打卬纸4个页面(即双面打卬2页以上)。参考文献的格式可参考相关文章,要注明出处。论文最终交稿吋间:不得迟于第15周论文打印格式:论文封面可参考课程设计的封面格式,把其小的课程设计改为课程论文,其余不变,接着是论文止文和参考文献时间和地点如F:13,14,16周一1・2节课3-106
2、下午后2:40■&00理学管31813,14,15周四3・4节3-106下午6・7节2-312晚上4:35:7:20理学管318论文最后截止时间16周周二以前Asimpleandcomputationallyeffcientfouriertransformbaseda1gorithmformovingtargetdetectioninnoisybackgroundwithnoaprioritargetinformationNonuniformFastFourierTransformsUsingMin-MaxInter
3、polationJeffreyA.Fessler.SeniorMember.IEEE,andBradleyP.Sutton,Member,IEEEAbstract—IhcfastIouriertransform(ITT)isusedniddjinsignalprocessingforefficientcomputationoftheFTofflnhe-leitgtlisignakuxerasetofuniformhspacedrrequennlocutions.Ilowe%er9inmainapplicudoiiK
4、onerequiresihuiuniformsampliiiginthefrequeue)domain.I.e..anonuniformFT.SexoralpapershavedescribedfastapproximationsforthenonunirorinFTbasedonlnteq)<>la(iiiKano%enampledFIT.1lihpaperpresent%anintcrpcilutionmctli(HlforthenonuniformPTthatHoptimalin(liemiininaKlens
5、eofniinimiziiigtheapproximatk>nerroroverallsignalsofunitnorm.Theproposedmethodeaslygeneralizestomultidimensioiialsignals・、umc「icalresultsshondial(hemin-maiapproachpro、IdessubstantialKkiv%crapprox・imaikmerron(hancoiicn(i<»iiulintcrpolatioiimc(ln>ds・Ihcinin-msxc
6、riterionkalsousefulforoptimizingtheparametersofinteqiolatioiikernelssuchastheKaiser-Besselfunction.IndexTerm—DhcrcieFouriertriiiKfornhuridding・imauinQ・iii(crpoh(l<)iumsisnctkresonance,tomogrspln・I.IntroductionTHEfastFouncrtransform(FFT)isusedubiquitouslyinsgna
7、lprocessingapplicationswhereuniformly-spacedsamplesinthefrequencydomainarcneeded・TheFFTrequiresonlyO(Nkg.V)opcruuonsft)ran・V.pointsignal,whereasdirectevaluationofthediscreteFouncrtransformrequires0(A'2)operations.However,avarietyofapplicationsrequirenonunifonns
8、amplinginthefrequencydomain,ashasbeenrccognizcdtora(least30years(IExamplesincluderadarimaging[2]-[6computingonentedwaveletsviatheRadontransformcomputationalelectromagnetic
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