% 4
-0707
0707
-0 250 0 968
a ■
Im (s)
0.8 h(t)
i
-2 000 -1 000 -0 500
0 000 —J—
0 000 i-r~
0000
—r~
Re (s)
-0 707 _
-0707
-0.250 s ^ -0.968
•e -
10.00
t
20.00
-0.4
H(s) =
H(s) =
H(s) =
1
S2 + \ S + 1
1
s~ + 2s +1 1
, h(t) = He2-e-2'),
, h{t) = 4ie '2
sin
4.
1
s2 + ^5 + 1
V2’
,,, 4 . \ll5
h(t)-—=e 4 sin-1,
Vl5 4
i - j v 15
4 7 4’
xlS 4 ’
4