!"#$%&'$()*$
•
+
•
!"!#$%&'%( )*+,& /*&+"*0&+1*023& .)&$ 456*&78
!"9&:;<*0 1=* 56.*>$&+1*0$%&;?5&@*AB45 /C# D*:=* 56.
&+1*0;?5&@*ABE*!58F1C)GH$ !"4IJ;K*04L "*!"&@*AB /G!15
'M&@*ABN/:=* 56.456*8
•
O*!15P
•
Q1 R*S*0P
•
T*0& ,(
•
T*0/1
•
T*0;?5
•
T*0 U*;?5
•
Q1,.&1P
•
!"& <4%*0
•
!"= V
•
:(R*0&@*ABP
•
!"!#$%&!15$ &RV9 /5VW*0XC#1C# /5VW*0X+/856*
:(W*0XC#1!#
5
H456*:(W*0X+/!#
Y
8
•
L2 ?1A:&4D=* N/$ !"& Q1&@*ABH*0IZ5&/;K*0=* 56. [* A5*
4D&W*0XC#1H+\541456*:(W*0X+/
•
!"
•
•
•
•
:(R*0&@*ABN/$ !"4IJ4]* *0 ^/!#&_AB05`/456*:(+/1&+a*
456*:(=* 56.C#15H& Q1'5L.& RP
•
•
K(f)E*4IJ0"5!# #$&+.Gb*N/$ !"8
•
+,-
•
.+/0%1203%456$(
•
!" _0\$:!5* 256*& <4%*0* I456*&+WcH&<456*C#.%*;OG89:!15$ !"& V
4%*0* IP
•
!"cdcdc
•
!" [* eH [*
•
.+.+/0%1203%7$(3%89
•
!"& T*0& ,( _ 1:=* 56.9&@*AB& ,(45 /$ !"8:=* 56.9&@*AB/1
& [2 T*0 /4IJ$ !"8
•
f 56.$ !"& T*0& ,(P
•
g4\$ !"& T*0& ,(cP
•
:(R*0&@*ABN/$ !"& T*0& ,(cP
•
•
•
:(R*0'5a*4%N/$ !"& T*0& ,(c
•
Đáptuyếntầnsốcủamạchlọcthôngthấp
@*ABU&N/$ !"& T*0& ,(c
•
IC)G=* 56.+/'] )$( /A1Ch5=* 56.C#18i&@*AB& ,($R )$( /* MHW&@*AB/1$R
)$( /!h* g*C#W&@*ABU&& [$R )$( /!#jk
1
8+1*0* 5b.&+IZ*0 J(HAV )$( /*#GAl
!#$ 1=* 56.+/']$m1;*0A1Ch5=* 56.C#18
•
g4\$ !"& T*0& ,(cP
•
:(R*0'5a*4%N/$ !"& T*0& ,(c
•
:;5<=/0%1203%7$(3%89
•
9>$(?#$560@A=/0%1203%7$(3%89
•
.++/0%1203%7$(0A!
•
!"& T*0/1 _ 1:=* 56.9&@*AB/145 /$ !"8:=* 56.9&@*AB& ,(& [
2 T*0 /4IJ$ !"8
•
f 56.$ !"& T*0/1
•
noP50 (/AAp!&Q+q
•
:;5<=/0%1203%7$(0A!B
•
9>$(3C$DE0@A=/0%1203%7$(0A!B
•
9>$(?#$560@A=/0%1203%7$(0A!
•
Đáptuyếntầnsốcủamạchlọcthôngcao
•
•
C$DE0F30@A=/0%1203%7$(0A!B
•
9>$(9%A0@A=/0%1203%7$(0A!B
•
%AG0@A0%H$%19%A0@A.3IJ59%A0@A.KLM
ω
B+
•
A0NGOPQAI03(RK.M
ω
BSOAI03(.M
ω
B
•
T3C$DE3%89U
→
P$#$
ω→
P
→
GOAI03(.MPOAI03(OVP
!
•
T3C$DE0A!U
→
$#$
ω→
→
GOAI03(OAI03(POP
!
•
T3C$DE0F3UOU
0
W
ω
O
ω
3%XGOAI03(.OY
!
•
%&"Z[\$%]^IA?_D'=9%AD!"'\$%]^"!+T3C$DE0A!=>0D'=9%A$%`Wa3C$DE3%89=>0
D'=9%A1'$%;$"a3C$DE0F33%X=>0D'=9%A1Y
!
+I!$($%^3I&b$(%c9WDdD'=9%A$[De
1=0%!\$%]^IA?_=f!)/$(D!"'\$%]^"!
•
:;5<=/0%1203%7$(0A!B
•
9>$(?#$560@A=/0%1203%7$(0A!B
•
:;5<=/0%1203%7$(0A!
•
9>$(?#$560@A=/0%1203%7$(0A!
•
.+g/0%1203%7$()h
•
/0%1203%7$()h0%!0 0\$%]^$i=3I!$(=63j%!h$(3C$DE$!5Nk^A5&c0=/0%120W0 0
\$%]^0N3C$DE$i=$(!j%!h$(3C$DE5N3%Xj%7$(k^A5&c0=/0%120+
•
l%]^0@A=/0%1203%7$()h
!m0
(BPF:Bandpasslter)
•
93^[n$3C$DE0@A=/0%1203%7$()h
•
fc
1
tần số cắt dưới ; fc
2
tần số cắt trên
•
g4\$ !"& T*0;?5cP
•
.+/0%1200%F$)h
•
!" U*;?5*0S*:=* 56.*>$&+1*0$%&2 1?*0&@*AB*#14945 /$ !"H:=*
56.9&@*AB*>$*01#52 1?*0&@*AB49& [ /4IJ$ !"8
•
f 56.N/$ !" U*;?5P
•
:(&.Gr*&@*ABN/$ !" U*;?5P
•
g4\$ !" U*;?5c
•
+op
•
#* `*0$ !"2r& J(:!5* 256*& <4%*0cssCh5:!5* 256*= V* I&+/*A5A&1+H
t
•
!"& <4%*09* IJ45L$!#$A.G05?$*S*0!IJ*0 /*9H2 T*09=* 2 .r 45C#2 9
( B5 J(&u*0&+WCh5:$ 2 :8
•
F1C)GH$ !"= V4IJA7;<*04L!#$&S*0 6AB&+.Gb*4&C# 6AB( v$ ,&H?5& 56*
* IJ45L$N/$ !"& <4%*08
•
9j!15$ w* P
•
s !"& T*0& ,(8
•
s !"& T*0/18
•
s !"& T*0;?58
•
s !"U&;?58
•
.+/0%1203%7$(3%89R!q9ADDr13sIKrS
s !"& T*0& ,(S*'?*P
F*0$
•
r.&/ "*cxycz& [{
CY
{yz
|:(&.Gr*&@*AB4%;BsxY;}~;QC[2 5&@*AB&S*0!a*zY!@*& [ 6AB2 .r 4505?$45zY!@*&R
sxY;}80IZ5&/ /G;K*0$ C1!&/0Q•1!!1€Q+4L!#$$ !"* I [* z8|OG!#$ 2 .r 45
2 T*04?1H* I*0;12 T*09456*&+W*B5$/AAW*0XC#1nsq*a*4%!J5'>*0•z8
•
0IZ5&/& IZ*0 "*c
•
yc4L05?$;E*01‚AQ&
•
s !"& T*0& ,(sjY;}~;QP
+1*0* 5b.R*0;<*0H&/@*( ?505?$* /* 4%!J5N/$ 2 5&@*ABCIJ& :&@*ABU&H9*0 ^/!#
4%;BN/'S*0&@*( ?5!h* g**`/8|9!#$<4w N/:$ !"')/18
•
F*0$
•
r. "*xyxzH&/9P
i$ *#G4%2 .r 45Al05?$45jY;}2 5&@*AB&S*0!a*zY!@*n4%!J505?$45zYY!@*2 5&@*AB&S*0!a*zY!@*q8
s !"& T*0& ,(sƒY;}~;QP
|L4&4IJ4%;B g**`/s0@*Ch5!f&IW*0s*0IZ5&/;K*0$ !"sxY;}~;Q$U*B5„r(Ch5$ !"sjY;}~;Q4L4IJ4%;B
sƒY;}~;Qn4%!J505?$45ƒY;}2 5&@*AB&S*0!a*zY!@*s09( /&5&@*ABU&!#sz…kYq8
•
F*0$ S*'?** I [* A/.