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ID:39504234
大小:189.50 KB
页数:17页
时间:2019-07-04
《Digital Filter Design Using Matlab》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、DigitalFilterDesignUsingMatlabByTimothyJ.SchlichterEE4000IntroductiontoDigitalFiltering5/2/99Submittedto:Dr.JosephPiconeMississippiStateUniversityDepartmentofElectricalandComputerEngineeringEXECUTIVESUMMARYAfundamentalaspectofsignalprocessingisfiltering.Filteringinvolvesthemanipulationofthespect
2、rumofasignalbypassingorblockingcertainportionsofthespectrum,dependingonthefrequencyofthoseportions.Filtersaredesignedaccordingtowhatkindofmanipulationofthesignalisrequiredforaparticularapplication.Digitalfiltersareimplementedusingthreefundamentalbuildingblocks:anadder,amultiplier,andadelayelemen
3、t.Thedesignprocessofadigitalfilterislongandtediousifdonebyhand.Withtheaidofcomputerprogramsperformingfilterdesignalgorithms,designingandoptimizingfilterscanbedonerelativelyquickly.ThispaperdiscussestheuseofMatlab,amathematicalsoftwarepackage,todesign,manipulate,andanalyzedigitalfilters.Thedesign
4、optionsinMatlaballowtheusertoeithercreateacodefordesigningfiltersthatcallsbuilt-infunctions,ortodesignfiltersinSptool,agraphicaluserinterface.Eachofthesemethodsareexaminedinthispaper.Thestrengthsandweaknessesofeacharedetailedinthefollowingdiscussion.Thispaperconcludeswithadiscussionofhowthedatag
5、ivenbyMatlabforvariousfilterscanbeusedtoimplementfiltersonrealdigitalsignalprocessors.Matlabprovidesalltheinformationnecessaryforbuildingahardwarereplicaofthefilterdesignedinsoftware.TABLEOFCONTENTS1.Abstract……………………………………………………………..42.Introduction.………………………………………………………..43.LowpassFilterDesign……
6、…………………………………………74.HighpassandBandpassFilterDesign………………………………115.Sptool……………………………………………………………….136.FutureDirections……………………………………………………167.Acknowledgments…………………………………………………..168.References…………………………………………………………..169.Appendix…………………………………………………………….17AbstractMatlabprovidesdifferentoptionsfordi
7、gitalfilterdesign,whichincludefunctioncallstofilteralgorithmsandagraphicaluserinterfacecalledSptool.AvarietyoffilterdesignalgorithmsareavailableinMatlabforbothIIRandFIRfilters.ThispaperdiscussesthedifferentoptionsinMatlaband
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