mobiluri telekomunikaciis miwispira da Tanamgzavruli sistemebi
mobiluri telekomunikaciis miwispira da Tanamgzavruli sistemebi
mobiluri telekomunikaciis miwispira da Tanamgzavruli sistemebi
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Iridium-is sistema gaTvalisiwnebulia globaluri<br />
moZravi personaluri <strong>telekomunikaciis</strong>Tvis principiT<br />
`TiToeuli-TiToeuls~ TanamgzavrTaSorisi<br />
kavSiris safuZvelze. Iridium-is sistema gansazRvrulia<br />
<strong>telekomunikaciis</strong> <strong>da</strong> momsaxurebis Semdegi saxeobebisTvis:<br />
<strong>telekomunikaciis</strong> saxeobebi:<br />
_ dupleqsuri radiosatelefono telekomunikacia;<br />
_ faqsimiluri telekomunikacia;<br />
_ monacemTa ga<strong>da</strong>cema,<br />
momsaxurebebis saxeobebi:<br />
_ personaluri terminalebis mflobel abonentebs<br />
Soris kavSiri;<br />
_ saerTo satelefono qselis abonentebis kavSiri<br />
personaluri <strong>Tanamgzavruli</strong> terminalebis momxarebel-abonentebTan;<br />
_ Setyobinebebis signalebis ga<strong>da</strong>cema peijerze;<br />
_ abonentTa adgilmdebareobis (koordinatebis)<br />
gansazRvra.<br />
zemoT CamoTvlili momsaxurebis saxeebis uzrunvelyofisaTvis<br />
kompania Motorola gvTavazobs sxva<strong>da</strong>sxva<br />
ga<strong>da</strong>satan mciregabaritian (700 gr-mde wonis) <strong>da</strong><br />
mobilur (2,5 kg-de woniT) personalur terminalebs.<br />
TiToeuli samomxmareblo terminali registrirdeba<br />
erovnul sakvanZo sadgurSi, sa<strong>da</strong>c mas eniWeba<br />
grifuli nomeri <strong>da</strong> Tanxmdeba sawyisi teritoriuli<br />
mdebareoba.<br />
a ) radioxazebis sixSireebis diapazonebi<br />
<strong>da</strong> zolebi<br />
orbituli jgufis nebismieri kosmosuri aparatiT<br />
(nax. 5.7) 48 sxivi yalibdeba. yoveli sxivi de<strong>da</strong>miwais<br />
ze<strong>da</strong>pirze warmoiqmnis 640 m diametris fiWs.<br />
154<br />
48 sxivis SerwymiT iqmneba Tanamgzavrqve<strong>da</strong> 4 zona<br />
<strong>da</strong>axloebiT 4500 km-is diametriT. mTeli orbitaluri<br />
<strong>da</strong>jgufebiT yalibdeba kvazimTliani Tanamgzavrqve<strong>da</strong><br />
zona, romelic faravs de<strong>da</strong>miwis mTel<br />
ze<strong>da</strong>pirs. Tanamgzavrqve<strong>da</strong> zonis Camoyalibeba xdeba<br />
TiToeul kosmour aparatze ganTavsebuli eqvsi<br />
fazirebuli saanteno meseris meSveobiT. TiToeuli<br />
aseTi meseris saSualebiT yalibdeba rva sxivi.<br />
mravalsxiviani antenebi <strong>da</strong> momsaxurebis fiWuri<br />
principi Iridium sistemaSi muSa sixSireebis mravaljeradi<br />
gamoyenebis saSualebas iZleva. amasTan,<br />
SeuRlebul fiWebSi gamoiyeneba sxva<strong>da</strong>sxva sixSire,<br />
xolo yovel merve fiWaSi, romelic orbitaluri<br />
<strong>da</strong>jgufebis mieraa organizebuli, SesaZloa sixSire-<br />
Ta ganmeoreba. amis Semdeg 1616,0_1626,5 mhc diapazonis<br />
sixSireebi gamoiyeneba 150-ze metjer.<br />
komerciuli radioxazebis sixSiruli diapazoni<br />
iyofa:<br />
_ `abonenti-kosmosuri aparati~. ayalibebs 64 six-<br />
Sirul arxs, romelTa Soris gatareba tolia 160<br />
khc-is (TiToeuli arxis sixSiruli zolia 126 khc);<br />
_ `kosmosuri aparati-abonenti~ ayalibebs 29 arxs<br />
maT Soris gatareba 350 khc-is tolia (yoveli arxis<br />
sixSiruli zolia 280 khc).<br />
b) SeRwevis meTodebi<br />
radioxazebSi `abonenti-kosmosuri aparati~ <strong>da</strong><br />
`kosmosuri aparati-abonenti~ gamoiyeneba arxebis<br />
droiTi gancalkeveba. mravasadguriani SeRwevis<br />
formati akavSirebs arxebis droiT gancalkevebas<br />
TiToeuli fiWisaTvis <strong>da</strong> sixSirul gancalkevebas<br />
momijnave fiWisaTvis. fazuri manipulaciis FM-4 –<br />
is meSveobiT sruldeba informaciis kodireba,<br />
155
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