... trinh(6)diro'c thay b3-i phirong trinh sau:A"(k - 1,s-1)L(s-1)+B"(k - 1,s-1)G(s-1)=T(S-1), (7)trong d6A" (k - 1, s-1) va B" (k - 1, s-1) 111.cacdatlurcv6icach~ ... - 1,s-1)G(s-1)]h(k),(8)trong d6h(k) 111.m9t chu~i gia tri bat kY.Kyhieu[" ;-1 " ;-1 <I>(k)=A (k - 1,s )h(k - 1), ,A (k - 1,s )h(k - I)," -1 "( -1 ) ( )]B (k-1,s ... h~ thong bhg may tinhdi~n tu- din mo ta h~ thong nay bhg mo hinh ARMA:(2)trong doA(s-1)=1+a1s-1+ +ans-n,B(s-1)=b1s-1+ +bms-m,s -1 111.roantu- dich nguoc,y(k)Ia tin hi~u...