Abstract

scp:Inibility tcchniquc inio tlic dcri\/ctl opti i i idity cniitlilions on plntr)iypc filtcrs. ' I Iic proposed design iiicthotls iiccd only snlvc lincar cqtititiuii itei,ativcly without i ionlincw optimisation. Dcsign cxaniplcs dcinoiistrnle llint good low-rlclay QMt: batiks mid liticnr-pliasc QMF banks can hc obtiiincd in only i i Tcw itci-titioris. Coinpared with ihc convciilioiial: y p x d i, tlic ticw appioncli luatls lo QMI: himlis with largcr.;(opb;uirl attciitiiiiioii;1nd smallcr ~.cconstruction crriws. 1 introduction Qiiiidmlure iiiii-rnr filter (QMF) batiks Iiavc n widc i-aiigc or npplicntiotis in s u h h d coding atid athptivc f l t c r ing I 1-41, The iiiidctlying issws [ I] coiiitiinnly CiicoLiiilcrCd iii ()MI: baiiks design inclutlc iiiiposing cotisirniiils on tlic l ict~~ict icy c1i:mctcristics of inclivitlual aiinlysis a i i t l syiith-csis lillers, and 0 1 1 ihc rcciwslrtictirrn fidclily 01 ' tlic coiubiiicd analysis/syiithcsis syslcni. Various studies linvc becu tlcvtitcrl to thc dcsign sul~jcct i i i I*CCCI~I ycars