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??SPOT??

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Title: Author: Customer Last modified by: victor Created Date: 8/7/2006 11:22:55 AM Document presentation format: – PowerPoint PPT presentation

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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

???????????????????????
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