毛拌牧 XI UNIVERSITY 常用输入信号
常用输入信号
常用输入信号 历毛子技大字 XI UNIVERSITY r() r() r() Re2 (c) ()4 r()
常用输入信号 r(t) R·1(t) 0 t (a) r(t) Rt 0 t (b) 0 t r(t) 2 2 1 R t (c) t r(t) h 1 0 r(t) 0 1 (d) h (e) r(t) 0 2 t (f) t
历忠毛子种技大字 XI UNIVERSITY n(4 r(t) (a) R·1(1)t≥0 Rt≥0 r() t≥0 r() 0 t<0 0t<0 r(s=L[r(tJ r(s)=L[r(o] r(s)=L[r() L[R·1()] =LIR.t L[A []
0 0 1( ) 0 ( ) t R t t r t ( ) [ ( )] [ 1( )] 1 r s L r t L R t s 0 0 0 ( ) t Rt t r t 2 ( ) [ ( )] [ ] r s L r t L R t A s 0 0 0 ( ) 2 2 t t Rt r t 2 3 ( ) [ ( )] [ ] 2 r s L r t L A t A s
历忠毛子种技大字 XI UNIVERSITY r(t) (f) r(t)=Asin O t=0 6(1)=r(t) 0t≠0 (t)d=1 r(s)=L[r() LLAsin(at ) r(s)=L[r(tl A/(s2+ =LD()]
0 0 0 ( ) ( ) t t t r t ( ) 1 t dt ( ) [ ( )] [ ( )] 1 r s L r t L t r(t) Asint 2 2 ( ) [ ( )] [ sin( )] / ( ) r s L r t L A t A s
毛拌牧 XI UNIVERSITY 典型环节
典型环节