設(shè)連續(xù)傳遞函數(shù)為:D(s)=(s+1)/(s2+1.4s+1),試用零極點(diǎn)匹配法使之離散化,令T=1s。()
A.AB.BC.CD.D
A.ξ=2.6617,ωn=1.0475B.ξ=1.6617,ωn=0.0475C.ξ=0.6617,ωn=0.0475D.ξ=0.6617,ωn=1.0475
A.16B.4C.12D.8