roupdelay.Becauseofnon—convexconstraintsongroupdelayerror,onstraints,whichgetsintroublewithdealingthem.3·eneralityofdesignmethods.Manydesignmethodshavebeenproposedtos01vedesignproblemsofconstrainedFIRfilters,suchaslinearprogramming,quadraticprogrammingmethods·SomeofthesemethodsCanonlysuitthespecifictypeofproblems,ands锄ec锄soh,ealittlemoretypesofproblems.Withthesemethods,plexFIRfilter,especiallytwo—plexFIRfilter.plexFIRfilterswithgivenamplitude盯mrandphaseerror,thefollowingissuesaremainlyconsideredinthisthesis.1·Applicationofimprovedmethodofconstrainingerror.ings,threetraditionalmethodsofconstrainingerrorhavetheirownlimitations.T量leliterature【8】proposedamethodofsimultaneouslyconstrainingfrequencyresponse锄r觚dph嬲eerror.Theproposedmethodcannotonlyindependentlycontrolmagnitudeerrorandphaseen-0rof
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