t品同 H S6s,(←=1-G(s)-H+εTC 1+e7C 令： =1-H 。付s,a(周 1+e2T2() t-周 D.⊙)D() Cn⊙c(s)( ) T ( js) H G s n n + - - = 2 2 2 1 e ( ) ( ) ( ) ( ) ( ) T ( js) H T js S s S s G s n n n + - - + - - = - - = 2 2 2 2 2 11 11 1 1 1 e e 令： - Hn = 1 ˆ 2 2 e e ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) C ( ) s C ( s) D s D s T js T js H T js T js H S s S s H n n n n n n n n n n n - - = + - + - = - + - - - + - = - 2 2 2 2 2 2 2 2 11 11 1 1 ˆ 1 1 1 1 1 e e e e