2023-07-26 14:10发布
极点在复平面左侧s=-3根据初值和终值定理，f(0+)=lim(s->+∞)s*f(s)=lims*(2s+1)/(s+3)^2=2f(+∞)=lim(s->0)s*f(s)=0
终值定理的应用条件:F(s)的极点必须位于S平面的左半平面;F(s)在s=0处若有极点,也只能有一阶极点.
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极点在复平面左侧
s
=
-3
根据初值和终值定理，
f(0+)
=
lim(s->+∞)
s*f(s)
=
lim
s*(2s+1)/(s+3)^2
=
2
f(+∞)
=
lim(s->0)
s*f(s)
=
0
终值定理的应用条件:
F(s)的极点必须位于S平面的左半平面;
F(s)在s=0处若有极点,也只能有一阶极点.
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