标签: average

AnalogAverage

MOVINGAVERAGEANDSELF-TUNINGCONTROL(KarlJohanÅström)

SLCADDMANYREGISTERSANDAVERAGETHEVALUE

GeneralizedPIDcontroloftheAverageBoostConverterCircuitModel

ThemovingaverageisthemostcommonfilterinDSP,mainlybecauseitistheeasiestdigitalfiltertounderstandanduse.Inspiteofitssimplicity,themovingaveragefilterisoptimalforacommontask:reducingrandomnoisewhileretainingasharpstepresponse.Thismakesitthepremierfilterfortimedomainencodedsignals.However,themovingaverageistheworstfilterforfrequencydomainencodedsignals,withlittleabilitytoseparateonebandoffrequenciesfromanother.RelativesofthemovingaveragefilterincludetheGaussian,Blackman,andmultiplepassmovingaverage.Thesehaveslightlybetterperformanceinthefrequencydomain,attheexpenseofincreasedcomputationtime.CHAPTERMovingAverageFilters15ThemovingaverageisthemostcommonfilterinDSP,mainlybecauseitistheeasiestdigitalfiltertounderstandanduse.Inspiteofitssimplicity,themovingaveragefilterisoptimalforacommontask:reducingrandomnoisewhileretainingasharpstepresponse.Thismakesitthepremierfilterfortimedomainencodedsignals.However,themovingaverageistheworstfilterforfrequencydomainencodedsignals,withlittleabilitytoseparateonebandoffrequenciesfromanother.RelativesofthemovingaveragefilterincludetheGaussian,Blackman,andmultiple-passmovingaverage.Thesehaveslightlybetterperformanceinthefrequencydomain,attheexpenseofincreasedcomputationtime.Im……

Decisions,decisions,decisions!Withallthesefilterstochoosefrom,howdoyouknowwhichtouse?Thischapterisahead-to-headcompetitionbetweenfilters;we'llselectchampionsfromeachsideandletthemfightitout.Inthefirstmatch,digitalfiltersarepittedagainstanalogfilterstoseewhichtechnologyisbest.Inthesecondround,thewindowed-sincismatchedagainsttheChebyshevtofindthekingofthefrequencydomainfilters.Inthefinalbattle,themovingaveragefightsthesinglepolefilterforthetimedomainchampionship.Enoughtalk;letthecompetitionbegin!CHAPTERFilterComparison21Decisions,decisions,decisions!Withallthesefilterstochoosefrom,howdoyouknowwhichtouse?Thischapterisahead-to-headcompetitionbetweenfilters;we'llselectchampionsfromeachsideandletthemfightitout.Inthefirstmatch,digitalfiltersarepittedagainstanalogfilterstoseewhichtechnologyisbest.Inthesecondround,thewindowed-sincismatchedagainsttheChebyshevtofindthekingofthefrequencydomainfilters.Inthefinalbattle,themovingaveragefightsthesinglepolefilterforthetimedomainchampionship.Enoughtalk;letthecompetitionbegin!Match#1:Analogvs.DigitalFiltersMostdigitalsignalsoriginateinanalogelectronics.Ifthesignal……