Design of biorthogonal filter banks composed of linear phase IIR filters
نویسندگان
چکیده
Sinw ITR filhs 1~1w lowrr c.oltll)llt,~.tiorlnl ~WIIIldrxity t.han FIR filters. SOIIIP tlvsign mvflds for IIR fi1t.w banks have IWVII lwwvntrd in t 1~~ rvwnt. lit~rmturw Smith rt, al. hare lmqmd a class of liwar phase IIR fi1t.w hnks. Howm~~r t,llis m~tlml restricts tlw ortlrr of t,hr num*rator to hv odtl ant1 .morvovcr .has sonw drawhacks. 111 this palm WV lmsrnt two tlc4gn nwt~hotls for lirwar phaw IIR. tiltvr hanks. One is IWXY~ ON L;~.grallgc~-~Ilil~il)li(~r mrt~hod . in which optimal IIR filtw hanks in I(ti~st sclimrrs wIIsc are ol)ta.inctl. 111 thr 0thW iL~)~)~O~lCll . IIR filtw l)ij.llks wit,11 tllc nli\.xillllllll ~~nndwr of wros a.w tlvrivctl il.Ilill~t.iC~idl~.
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