A.3/(s+2) B.3/(s+0.5) C.6/(s+2) D.6/(s+0.5)
A.k-ke-1/Tt B.k-e-1/Tt C.k-ke-Tt D.k-e-Tt
系統(tǒng)的開環(huán)傳遞函數(shù)為輸入為單位斜坡函數(shù),要求系統(tǒng)穩(wěn)態(tài)誤差為ess=0.01,則K應(yīng)為()
A.200 B.0.01 C.100 D.2000