Cong Nghe Truy Nhap Ngn 3759

5/24/2018 Cong Nghe Truy Nhap Ngn 3759

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TNG CNG TY BU CHNH VIN THNG VIT NAM

HC VIN CNG NGH BU CHNH VIN THNG

TRUNG TM O TO BU CHNH VIN THNG I

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CNG NGH TRUY NH() TRONG MNG NGN

Bin son: Nguyn Vit Hng

H ni thng 5 nm 2007

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27


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Vi gh}> h t8j tU C sU fiu [h nh ti D2 C=i Yey" ng G>o8t t8n mt h ngu

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Mc Y ^ nh6ng fc> H#J!n th6ng C6j sk YZng t8n C6ng Yey H#J! [h=ng fc> hilu Yi tr 2^75 [mCAn D^7 [m GK CAn 2 [t" Ui i Yey 2F $(^ th9 Ct C6j 7^D [m [hi sk YZng mt fc> [m GDE [t [hi Yng 2 fc>" Yi thx sx th9 thX> hn nhng ni[h=ng th9 Cct C6j fc> h\nh R W t8\ t8ung gi ngu|n tr >h\< thu ?@

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CUi R?ng 8Xt >h hj> C9 ung X> YWh Z tU C h\< tng Ci ti thu tU C h? t> {ng [z thu@t t8uyln Yn $#J!" Mc Y nhilu 6u Ci9m nh6 @y nh6ng [z thu@t ny n h6< C6j sk YZng 8ng 8i C f ` h6h6ng >h> gh}> [nh th\h hj>" Hn nst ;< moYm sk YZng [z thu@t V#J! n ]n Ct nn [z thu@t ny h6 ditiAn nh6 f 1bN Ggidi >h> ny sk YZng mt $( th th auhdi f 8"

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(KID"5: ,h=ng au< nm 2002^ R CWnh nhng hA huy9n mh do hoB1bN

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(KIF"D : M= td nhng Cc t\nh l [hung hi tZ t8uyln Yn ;< (1bN dn tin^>h6ng >h> R CWnh [hodng^ hot Cng^ gim st^ nhng h? nng do Y6ng^ dom@t"

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Chng 21: H`nh D"2: Xu h`nh hung ;< mt mng 1bN

KQ A)ON


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YZng hihen >hUi au hoc nhilu hn C6ng Yn au YWh Z t8uyln Yn mt h t8ong suUt gi< +N) JN) th=ng au< 1bN"

b!, C6j [At nUi CAn mng huy9n mh th=ng au< gi


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MUWK

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8ing it >hZ thu o Cc td gi m 8ng nh [huAh Ci au9k Pf$"

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Chng 25: H`nh D"E: Xu h`nh @t f ;< b#N

h6ng th? t8uyln tdi [h=ng C|ng $,M i mng

t8uy nh@> au sx mlm Yo tho [hi nim C t8ong suUt YWh Z >hen ng tqn^ngoi 8 , C6j >hen hi< thnh f> on t8uyln Yn 1bN f> on th\h ?ngn{m t8n^ t6ng ?ng i f> on hi tZ t8uyln Yn ;< m= h`nh B)J#N" !> on th\h?ng C6j hupn h< Yx< t8n hupn $,M t8n s > C|ng t8uyln thUng ),+ )"7D2"

h? nng ;< f> ny f huy9n Ci gi< [hung 25s m? ng6i Yng GCn W Y fiu

gi


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Chng 27: H`nh D"I: Ngn RA> 1bN"

Ngn RA> ;< 1bN C mt sx th 1bN mi i mt sx th\h ?ng ho 12M1 C6j h 8< h`nhD"I" Cey sung f> Cilu [hi9n M$ C< Ci9m"

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u qu >hen ng tqn ,h< thu@n th RA> tUi 6u h< [h thi gihZ Cng [ bN+

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Xu m@t m h< ;< 1bN C6j Yx< t8n thu@t ton m@t m h< tin tiAn $JG$Ytion Jt i tiu hupn ;< ) t8nh nhng sung sh> ny m@t m h< ton mt [hung th8nt^ hqn h


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i9m nhXn mnh ;< Xu t8T CUi R?ng f hot Cng t8uyln Yn tho hA C Zm tU C 0 (s" M h< C6ng Yey EFEE C6j Yng t8ong f> @t f th8nt 0 (sf qn thiAt "

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3.+.1.3 B/nh (inh ho;t

#Wh Z th8nt ho >h}> nhng thu mng ;< hQ tho nhng hhoc f >h? t> hn hoc f [h=ng th9 thx hin i YWh Z t8uyln thUng [h" V\YZ: mt =ng ty thu mt gi th8nt Cn th9 [At nUi nhilu mng W t8\ [hnh mt )nt8 i mng

Mt8o th8nt Nto8[ GMN ;< nh ung X>" ,hiAt W [hh hng Gustom8aui>mnt gn o mng MN au< gi ng6i sk YZngmng +N) G+s8Nto8[)nt8h}> V ung X> t\nh8ing t6 sx do m@t t6ng tx 18m


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th 2 G!oint" < Ci9m Ci9m GMufti>ointtoMufti>oint"

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50


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gi@! %9 Ek >9]?$]> +i$]

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Vi YWh Z !$N^ [hi +N) mi qn C6j thm o t< [h=ng qn thm V mim Cn gidn h thm +N) mi o V C< Ci9m " V` thA^ !$N J8i C]i hi hmt V C9 hon tXt i [At nUi muftisit"

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,8o8ts $#J!2_^ EF >o8ts JH#J! ti t8ung tem huyn^ thW R [hu x Yen 6t@> t8ung f6u f6jng


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Chng 29: H`nh D"0 Mng M$N ti Ninh B`nh

5


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71/120


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)H6N III7 CNG NGH TRUY NH() V TUY2N

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2002 2003

6MT

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+!a9ht t8i9n 8ng [h> t8n thA gii C6j oi f [A hoh thnh =ng" h thUng (JM hot Cng Ydi tqn [hodng K00 MH G(JMK00^ "I (H Ggsm

I00^ hoc "K(H G(JMK00" (JMK00 f mng tA o (JM gU C> ?ng ng8ng fn Gm nh@n h thUng +$!bMM nh6 hupn tmthi ;< hQ^ ,)$)$)JK5 hupn t6ng th\h gi< t8m gU t8m Yi Cng ho h

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+.2.1.3 ,Gf?

9 h t8j mt h hiu aud mt i foi f6u f6jng to 8< i nhilu foi ?ng YZng^mng tng h> >hdi ung X> C6j YWh Z Y fiu gi" Vi mZ tiu Xy^ < =ngngh Y fiu^ C6j C6< o h thUng = tuyAn^ RuXt hin mt Rn nhhdi ung X>:

YWh Z C< >h6ng tin^ t8ong hot Cng hA C [nh gi" fznh x ng6i sk YZng nh6 t6 nhen^ =ng ng^ th6ng mi^ Yen 6^

fznh x [h" mng Yx< t8n mct CXt tinh" ,hiAt W tTi nhen^ thiAt W t8n R ^ Xt ? Cqu uUi Cc iAt [h"

Chng 34: H`nh F"5: H thUng )M, 2000

Cc t\nh R CWnh ;< )M,2000 h&!n!u8 C,M(

;C:136 ;*(5

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M? C t6ng C|ng [hdnng moYuf ho l d h hupn n]ng Ut ho gi t8uy nh@> int8nt"

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NR"25 Mh Gi N^D^E^K^ hoc 2 th9 h|ng fX> N sng m >h}> ;< C9hot Cng t8ong ng tqn ny"

Mng = tuyAn ng 8ng Cqu tin^ !$N C6j Rey Yxng t8n s hQ hupn) I02"" hupn ) I02" Cqu tin C6j >ht hnh o KK7^ hiAm ID"5MHng th=ng t8ong ng tqn 2"F(H [h=ng X> >h}>" N sk YZng Cilu hA 1JS i t8di>h nhdy tqn HJJ t8di >h hui t8x tiA> #JJJ" ,U C Y fiu fn CAn 2M>s C6jh t8j i JM$$^ sk YZng ho t8uy nh@> ngu nhin" hupn Cqu tin C6j m 8ngo KKK C9 to 8< hupn I02"^ hot Cng t8ong ng ng tqn nh6ng h sk YZng

#JJJ" ung X> tU C [nh t8uyln x Ci fn CAn M>s i tU C Y fiu ng6iYng x Ci [hodng "EM>s" 1hm i t8uyln Yn Ct ti 50m" SiAn t8T mng t8ongI02" f h`nh sh t8ong ng N))5(H" ,hx tA^ D00MH >h C6j >hen hi< thnh < ng on 00MH" Mt ng thX>tr 5"55"25(H^ mt ng gi< tr 5"255"D5(H^ mt ng t8n tr 5"7255"I25(H"Mi [nh hiAm 20MH^ ngoi t8r >hqn uUi ;< ng gi< ng thX> f D0MH" < m? =ng suXt >ht x Ci C6j h 8< f F0m ho ng thX>^ 200m ho nggi< I00m ho ng


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h thUng t8ong nh^ sng m i gii hn =ng suXt t8ong ng thX>gidm >hm i ;< I02"< so i I02" ng [h hn C9 t\n hiu Ruyn au< ?t6ng @t dn [h" hupn I02"< sk YZng C< t8uy nh@> b#M th 6u Ci9m ;< I02"<

I02" i tU C Y fiu fn CAn 5FM>s t8ong ng tqn 2"5(H ho >hm i fn hn"hupn ny tiA> tZ t6ng th\h i I02" ` thA Ci9m t8uy nh@> I02"g s fm ii th\h ?ng mng = tuyAn I02" h hj>i d < hupn C9 t8nh [h=ng t6ng th\h" HQ hupn I02"s t8m gU im @t f [h nh


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