Title: ??SPOT??
1????????
2????
??SPOT??
- ??????(???)?????(??????????),??????????????(???)?
- ???????????????????????
- ???????,?????????????
- ????????????????????,????????,?????????????????
3? ?
- ??????????????????,?????????????????????????????
- ????,????????4500???,??90????????????,80????????
?? - ???????????,????????????????????????
?????700800???
4??????????
????
????
?????
????
????
????
5?????????
- ???????,??????????
- ????(Surveillance Satellites)
- ????(Early Warning Satellites)
- ????(Weather Satellite)
- ????(Astronomical Satellite)
- ????(Navigational Satellite)
- ????(Remote Sensor Satellite)
- ????(Killer Satellite)
- ????(Communication Satellite)
6 - ????
- ?????????????????????????,??????????????????????
????,??12????????????????????????????,?????????,??
?????,??????????????
7 - ????
- ??????????????????,???????????????????????????
???????????????????(?????),??????????????????????
8 - ????
- ??????????????????????????????????????????????????
??????????????????????????????????????????,???????
???5??5??? - ??????????????????SPOT(???)?????????????SPOT
?????????20??,????10???
9 - ????
- ??????????????????????(GPS)??24?????,?????????????
??????????????????????????????????????????,????GPS
???? - ??????????????????,??????GPS?????,????????????????
???
10???????
- ??????????????????(Transponder)??????????????,???
?????????????
11????????????
- ????????,?????????????????
???????????????????????
12??????????
- ??????????????????????????????????
??????
13???????????
- ????????????
- ??????(International Telecommunication,?INTELSAT)
- ??????(TV Program Distribution)
- ?????? (VSATs)
- ?????? (Military Communications)
- ??????(Mobile satellite services , ?INMARSAT)
14 - ??????(Direct Video Broadcast, DVB)
- ??????(Direct Audio Broadcast, DAB)
- ??????(Emergency Communication)
- ???????(????(Iridium))
- ??????(Internet Backbone Services)
15???????
- ?????????????????
- ?????????????
- ????????????
- ???????????????
- ??????????
- ??Internet??????
- ????????????????
- ???/??/???????????
- ???????????????
16????????
- ???????
- ???(LEO) 300 to 1,500 km
- ???(MEO) 8,000 to 12,000 km
- ????(GEO) approx. 36,000 km
- ???????
- ????(Circular)
- ????(Elliptical)
????????(GEO)????????????
17 - ????(LEO)
- ???(1000????)??????????????,????????????,?????????
????,????????????? - ??????????????????????,????????,?????????
- ?????,??????(Iridium)?????????????????6????,????11
???Globalstar??6????,?????8????
18- ????(MEO)
- ???????????,???GPS????,?6????,?????4??
19 - ????(GEO)
- ???????36000??????????????????????,????????????,??
???????????? - ??????,??Delay??,????????????????????,????????,???
???(?????42??)????????? -
20 - ??????(3600) ,ITU?1985???????,???30??,???20??,????
?,????? - ?????????????????????????
- ??1250???1250?????????,???????????
21????????
???? GEO
???? MEO
???? LEO
??
300-1500 km
??
8000-12000 km
36000 km
????
24hrs
2-4hrs
15min
?????42.2 ??????
???? ?????
??? ????? ?????
??
????????
100ms
250ms
15ms
????? ?????? ??????
?????? ??????
????? ?????? ??????
??
22- ????????????????,???????????????,??1000???????????
???25000????????????????
Name Full Name Attitude (Km) Amount needed to cover the earth
???? (GEO) Geostationary Orbit ?35860?? 3
???? (MEO) Medium Earth Orbit 100025000?? 10
????(LEO) Low Earth Orbit 5001000?? 48
23 ???? ???? ?? ??
??? Large Satellite ?????? ????????
??? Small Satellite ????????? ????????
???? Mini-Satellite ????????? ????????
??? Micro-Satellite ???????? ????????
???? ( ????? ) Nano-Satellite ??????? ??????? (QuakeSat)
???? (?????) Pico-Satellite ????? ?????(CubeSat) ????? (YamSat)
24?????????
?? x1000 km/h
24
???? h
20
16
11000 km/h
12
8
4
?????? 35,786 km
10
20
30
40 x106 m
??????
25?????????
? ? ? ?
HF2500-6500??
GEO16,960??
???????
26???????????
??????
????92?
239 ?
????147?
27 28 29 - ?????????????????????,?????? ?????????? XI-IV
???,?2003.06. 30??? ??,?????????????????????? ?,??
?????????????????????? ??128 x 120
?,????????????????? ???????,?????????130
??????? ?????
30????????
- ??????????????????,??17.4??
- ???????????????????5??
- ?????????????2??
31????????
- ??????????(300MHz300GHz),????
- ???????????????
- ????????(??????),????????????
????????????????? ?????????????????
32????????
- ?????????????????,?????????????
- ?????????????,?????????
- ???????????
???? (GHz)
???? (GHz)
??
??
??????
6 (5.925-6.425)
4 (3.7-4.2)
C
?????? ??????
14 (14.0-14.5)
11 ( 11.7-12.2)
Ku
?????? ??????? ??????
30 (27.5-30.5)
20 (17.7-21.7)
Ka
33????????
????
????????
????
????
???????
B2B
Internet ??
??
34 ????
- ?????????????????????????
- ??????????????????
- ???????????????
35 36 - ???????????????
- ???????(1) ????(?????????????? ????)?(2)
????????????????(3) ??????????????(4)
???????????? - (5) ??????(?????)?
- ??????????????????
37 - ??
- ???????,??????????????????,?????????????????,?????
??????????
38- ??
- ????????????,???????????????????????,??????,??????
????????200??,?????????????,??????????,????????,??
??????????,??????????????????????
39 - ????
- ????????????????????????,??????,????????,?????????
?,?????????????,????????,???????????????,?????????
????????,??????????
40 ??????
- ??????
- ??????-???????,?????????? ??????,?????????? ?
?????????? - ??????-???????????(????),? ???
41 42 43 - ???????
- ????????????????????
44 ????
- ?????????????,????????????,?????????????????????,?
???????,???????????????????,??????????,???????? - ???????????????
45 - ??????
- ??35?????714???
- ??15???
- ????????,???????????,?????????,?????????,???????,?
??????????? - ???????????????????????????,??????????????????????
???????????????(????)??
46 ????????
- ??????(NSPO)
- ?????19912004,????(????),????(????????),????(???
??)? - ?????20042018, Argo ???????????????
47 - Argo ????-??????????????????
- ????-50km???????????????????,300
km???????????????????,?50km?300 km?????????????? - (????2007.09.13??)
48 - ?????-
- ?????,???857???????????,???????600650???????? ???
????????????????????????
49??????
50 ROCSAT2(??) ??
??
ROCSAT3(??) ??6
??6
51 ???????????????????????