Inthaneteng ea Inthaneteng le Li-Antennas tsa Automatic Orientation



Anatomy ea Satellite Satellite - Basic Architecture

Likarolo tsa Sepanta

Litemoso tse nyenyane tsa Mekhoa le Liqapi

Mefuta ea satellites - Histori ea Satellites E le hore o fumane kgolo e eketsehileng ea bokhoni ba ho sebetsa ka chelete e tlaase ka ho fetisisa e ka khonehang, lipatlisiso sebakeng sa puisano li hlaha. Ka hona ho maikutlo a satellitari puisano hlaha nakoana ka mor'a ntoa ea bobeli ea World, ka lebaka la ho kopana le tse peli theknoloji e fapaneng haholo (metsu le microwave e). Sebaka lilemo ba ile ba qala ka ho 1957 le tlhomelo ya pele maiketsetso sathelaete Sputnik ke tsa FSU, e neng e nkile-le-moea mwinda eo ntša pontšo ka maqhubu a 20 le 40 MHz. letšoao lena le ka amoheloa ke bahiri ba bonolo lefatšeng ka bophara ba etsa tlhahlobo ea pele ea phetisetso le ho amohela lipontšo ho tloha sebakeng.

Litšobotsi tsa li-satellite Sebopeho se ikhethang ka ho fetisisa ke mefuta e fapaneng ea lits'ebeletso tse fanoang ke mechine ea satellite telecommunication, ho phatlalatsoa ho hoholo ha li-satellites ho sebelisetsoa ho theha li-link tsa nako e telele. Sebaka se seng sa li-satellites ke hore ba na le bokhoni ba ho bokella kapa ho hasa lipontšo ho tloha sebakeng se seng ho ea ho se seng.

Seteethenete ke eng? Ke pheta-pheto ea elektronike e sebakeng, e amohelang lipontšo tse hlahisitsoeng lefats'eng, e li matlafatsa le ho li romela lefatšeng. Sathelaete ke ntho leha e le efe e tsamaeang ho potoloha kapa e potolohileng ntho e 'ngoe. Ka mohlala, khoeli ke sathelaete ea lefatše, 'me lefatše ke sathelaete sa letsatsi.

Setefane se sebetsa joang? Sesebelisoa sa seea-le-moeeng "A" se fana ka pontšo e amoheloang ke satellite. Sathelaete e e phahamisa ebe e khutlisetsa hang-hang. Mookameli oa ham radio "B" o o amohela mme oa o araba. Ka hona, qala puisano ea sathalase. Li-satellites tsa puisano li sebetsa joaloka Li-relay Stations tsa sebaka. Li sebelisetsoa ho romella melaetsa ho tloha karolong e 'ngoe ea lefatše ho ea ho e' ngoe. Melaetsa ena e ka ba fono, litšoantšo tsa thelevishene, kapa li-Internet. Li-satellites tsa puisano tse kang EchoStar li ka li-orbit geosynchronous (geo = earth + synchronous = ho falla ka lebelo le le leng). Seo se bolela hore satellite e lula e le sebakeng se seng lefatšeng. Sebaka sa Lefatše se ka "Bonang" se bitsoa satanase ea maoto.


Mefuta ea Satellites:

Ka potoloho ea eona:

Ø Satellites ea potoloho ea motlakase. Ha orbit ke ka sefofane equator ea Lefatše, ka e leng sebaka sa hoo e ka bang 36000Km (lekanang le a ho 5,6 e radius ea lefatše), 'me ka lebaka leo, nako orbital ke hantle lekanang le nako e potolohang ea lefatše (khr, 23 H, 56 mets le 4s), e tsejoang e le letsatsi sidereal, ka nako eo re ka bolela hore ho orbit ke geostationary sathelaete le matha ka orbit ena ke geostationary sathelaete. Tsena e ne e le qaleho ea puisano ea sathalase, 'me hoo e batlang e le li-satellites tsohle tse sebelisitsoeng kajeno bakeng sa puisano ka marang-rang a mekhatlo ke GEO. Lits'ebetso tsa mantlha tsa satellite tsena ke lintlha tse fetisisang-ho-multipoint le ntlha-to-point.

Ø Li-satellites tse potolohileng tse nyenyane (LEO).Leo satellitari ba sebakeng potoloha tlaase, ea 1.500 km le ka karolelano, empa e ka ba pakeng tsa 200 le 2000 dikhilomitha, le linako orbital li har'a 90 le 120 metsotso. mahlatsipa tsena potoloha e ne e sebelisoa ka matsatsi a pele ea theknoloji ea puisano sathelaete e le e mong oa mekhahlelo ho koahela ho finyella pakane ea bona phahameng ka ho fetisisa ka nako eo, e ne e le li-satellite geostationary, ha e-s'o ho ne ho le mokhoa lekaneng ho fihlela matla a lonthja hlokahala ho beha sathalaete ho 360000 Km ea bolelele bo lekanang le ho potoloha ha motlakase.

Ka morero oa eona:

Ø li-satellites tsa ho shebella lefatše.

Ø Meteorological satellites.

Ø li-satellites tsa ho tsamaea.

Ø li-satellites tsa thelevishene.

Ø Li-satellite tsa masole le lihloela.

Ø li-sat radio li-satellites.


Melemo le Mathata

Melemo

Ø Phatlalatso e potlakileng le e feletseng ea libaka tse kholo tsa libaka, ho fapana le mekhoa ea khale ea mobu, ea ts'ebetsong ea nakoana.

Ø Ho khoneha ho ikemela libakeng tse fapaneng le litšitiso tsa tlhaho tse kang lithaba, joalo-joalo.

Mathata

Ø Ts'ebetsong ea sesebelisoa e tsamaisoa ke ho lieha ha liphatlalatso, li fokolisoa ke lipula, lehloa le li-sunspots tse amang liteishene tsa mobu, li boetse li utloa bohloko ka seea-le-moeeng, microwave le ho kena-kenana le sefofane.

Ø Theko e phahameng.

Ø nako ea bophelo.

Ø Bothata ba molao.


Satellite-e-ba eona e leng ntlha e bohareng le e tlamehang ea marang-rang eo sehlopha sa li-link tsa nako e le 'ngoe li fetang. Ka kutloisiso ena, e ka nkoa e le ntlha ea marang-rang. Mesebetsi e ka sehloohong ea sathalaete ea thelefono ke ea latelang: Ø Eketsa lipontšo tsa tšebeletso tse amoheletsoeng bakeng sa ho khutlisetsa morao fatše. Ø Phetoho ea makhetlo a matšoao a liphallelo ho qoba mathata a ho kena-kenana Ø Le satellite e na le moputso le sethala. Ø Puseletso e na le li-antenna tse amohelang le tse fetisang, le lisebelisoa tsa elektronike tse tšehetsang ho fetisoa ha matšoao a li-carrier. Ø Sefora se na le lits'ebeletso tsohle tse lumellang moputso ho sebetsa.