1
HC VIN CNG NGH BU CHNH VIN THNG CNG HO X HI CH NGHA VIT NAM
........o0o....... c lp -T do - Hnh phc
H ni, ngy 01 thng 04 nm 2015
CNG CHUYN H THNG TRUYN THNG
QUANG QUA KHNG GIAN(FSO)
1. Tn chuyn :
H THNG TRUYN THNG QUANG QUA KHNG GIAN(FSO)
2. Gii thiu chuyn
Ngy nay, vi s gia tng khng ngng ca lu lng Internet v s pht trin
nhanh
chng ca cc cng ngh truyn thng quang to nn nhng chuyn bin mnh
m
trong kin trc mng vin thng. Cc h thng truyn thng quang hin nay c
kh nng
truyn ti vi dung lng rt ln, phc v nhiu ngi dng. H thng quang qua
khng
gian (FSO- Free Space Optics) c u im d dng lp t, di chuyn, thit
lp li cu
hnh mng khi cn, an ton cao v s dng ng truyn tm nhn thng ( LOS-
Line
Of Sight), c tnh tnh hng cao v tnh hng ca bp sng quang cao. Tng
lai ngy
cng i hi phi c cc gii php truyn dn tc cao p ng yu cu ca cc
doanh nghip, t chc v c nhn.
FSO l cng ngh vin thng s dng s truyn lan nh sng trong khng gian
truyn
tn hiu gia hai im, trong tn hiu quang, thay v truyn trong si
quang, c pht
i trong mt bp sng quang qua khng gian. Tuy nhin, mi trng khng kh
khng
phi l mt knh truyn thng l tng. S khng ng nht v nhit v p sut
ca
khng kh dn ti s thay i ca ch s khc x dc theo tuyn ng truyn dn,
hay
cn c gi l s nhiu lon khng kh.
3. Ni dung chnh
Chng I. Tng quan v h thng truyn thng quan qua khng gian
1.1 Khi nim truyn thng quang qua khng gian.
1.2 Cu trc h thng truyn thng quang qua khng gian.
1.3 u nhc im, cng nh cc m hnh h thng.
1.4 Cc thut ng s dng.
2
Chng II: Cc k thut chuyn tip.
2.1.Cc k thut chuyn tip in
2.2. Cc k thut chuyn tip quang
Chng III. nh gi cc yu t nh hng n h thng
3.1 Cc yu t nh hng n h thng
3.2 nh hng ca nhiu lon khng kh ln h thng
3.3. Cc kt qu th nghim v nh gi
Chng IV.Tng kt
4. Phn cng nhim v:
Tn sinh vin Ni dung
Lu Th Anh Chng 1
L Thnh t Chng 1
V Minh Hi Chng 2
Hong Vn Thng Chng 3
inh Th Vinh Chng 3
5. Danh mc ti liu tham kho
6. Thi gian thc hin:T thng 3/2015 n 5/2015.
H Ni, ngy 1 thng 4 nm 2015
Nhm sinh vin thc hin:
Lu Th Anh
