UbuchwephesheIsixhumanisi

Ezokuxhumana Modern - okusheshayo

Ezokuxhumana emakethe ingenye izindawo ethembisayo futhi ezikhula ngokushesha kwemboni ezokuxhumana. Okwamanje, uhlelo ezokuxhumana usendleleni yentuthuko okusheshayo, ngokuvamile, ugxile Russian uhlelo ukuxhumana engena ezweni njengenhlangano umlingani alinganayo ukuhlinzeka amasevisi ngamazwe, ibanga elide, idolobha, idatha, inthanethi, iselula, njll ..

Uyini Telecommunications

Igama elithi "ukuxhumana ngezingcingo" lisuselwa emagameni: communico Latin, elisho ukuthi "indlela yokuxhumana," kanye tele ngesiGreki, okusho "kusho lowo oyibamba kude kakhulu."

Ngakho, singasho ukuthi:

  • Telecommunications - iqoqo amadivayisi nezinhlelo ukudlulisa ulwazi nge ikhebuli umsakazo iziteshi. Le divayisi Imininingwane ukuguqulwa, emagama yayo, bashintshashintshe izwi; Lokhu eziphambili ukucutshungulwa computer nobuchwepheshe.
  • Telecommunications imishini - iqoqo lobuchwepheshe, isofthiwe futhi izindlela yenhlangano ukudluliswa kwedatha olude. okuqinile-isimo okukhipha yokukhulisa umsindo zisetshenziselwa ukwakha omoya satellite esiteshini.
  • Telecommunications - ogunyaziwe Service Centre uyakwazi okuxhunyanwa nokwamukela imiyalezo. Ongoti ezokuxhumana - ochwepheshe kanye onjiniyela. Bahlanganyela emsebenzini nge amakhodi, amasignali, umsindo.
  • Telecommunications - kuyinto exchange of yiluphi ulwazi ngosizo ikhompyutha. Imininingwane idluliselwa ngokusebenzisa iziteshi zokuxhumana noma bashintshisane ngolwazi.
  • Telecommunications - yinqubo ukuthola futhi ngokucubungula ulwazi usebenzisa electronic, inethiwekhi, kagesi, ulwazi kanye computer nobuchwepheshe.

izindawo Ukuthembisa zokuxhumana ubuchwepheshe kufanele kubhekwe:

  1. Ukudala entsha izakhiwo isignali-ikhodi ukusetshenziswa amasu kuhlangene signal zokukhwabanisa kanye entsha amasu isignali wekhodi ukwandisa komkhawulokudonsa kanye ne-transmission izinhlelo ukuthuthukisa amandla abo.
  2. Ukudala antenna amadivaysi smart ngamandla ngcono.
  3. Ukudalwa ezokuxhumana izinhlelo ku milimitha band wave nge imvamisa isebenza cishe 100 GHz.
  4. Ukuthuthukiswa izindlela kanye nobuchwepheshe zokuxhumana imishini, iqinisekisa ukusebenza kwabo kahle ube umbandela generalized: izindleko ubuncane, imingcele esiphezulu, ukuthembeka esiphezulu, isisindo okungenani kanye nosayizi izici.
  5. Ukwandisa izinga lokuqeqeshwa abafundi bebheke "Telecommunications", ukunwetshwa ucwaningo nentuthuko kule isiqondiso.

Nxa wekhodi indlela Technology

Ukuze amandla elilungile izinhlelo zisebenzisa izindlela entsha ye ukuyiqonda nokuyikhumbula isignali kwezwi. Lokho isignali amasu esephepheni ukuze silwe amaphutha izimo ukuphazamiseka, izenzo ukunikeza amandla nzuzo uhlelo 6.8 DB, yize isiginali ukusabalala bohlu. Isebenzisa block amakhodi: Hamming amakhodi, Reed-uSolomoni, BCH namakhodi convolutional esihlahleni. An ukusetshenziswa ezithakazelisayo amakhodi kubalulekile ukucabangela ukuthi uvumele ukuqaphela esingunxantathu amplitude isigaba shift Keying futhi ngaleyo ndlela athole inzuzo eyengeziwe esephepheni ukwandisa isivinini isignali yokudlulisela. Kulokhu isiteshi komkhawulokudonsa ukusetshenziswa multi-isikhundla isigaba isihlobo shift Keying futhi quadrature amplitude isigaba shift Keying.

ukuxhumana satellite

zokuxhumana Satellite izinhlelo asetshenziswa iziphuphutheki geostationary ngoba ukudluliswa izinhlelo zethelevishini, kuhlanganise abamukelayo ngabanye kanye isofthiwe iqembu traffic idatha. Of inothi oluthile ohlelweni wezizwe Inmarsat satellite zasolwandle Ukuqondiswa kwemikhumbi, okuyinto, ngaphezu kwalokho, uye wathola eziningi wokuhweba wayo zokuxhumana okusheshayo lokuzula usebenzisa i-GPS satellite navigation system ezindaweni ezikude, esimeni esiphuthumayo, kanye nokuqapha yizimpahla traffic. Compact ifoni satellite ivumela ukwedluliswa kolwazi kusuka kuphi emhlabeni. Lihambisana umsindo broadband mbumbulu-signal ubuchwepheshe obusha ziye lwenteke: antenna imvamisa microstrip, okuqinile isimo amandla amplifier, i-dual isiteshi isihlungi wave ebusweni acoustic esekelwe germanate bismuth narrowband microwave amafilithi resonators Kwe-dielectric Heating, njll ..

Telecommunications izindlela

Namuhla, ikakhulukazi ukuthuthukiswa ngokushesha mobile zokuxhumana Uthole, inani ababhalisile okuyinto emazweni amaningi idlula isibalo fixed inethiwekhi ababhalisile. bokuphakama Inqobo emakethe mobile kunesithembiso GSM-900 standard / 180, okuyinto uhlelo emkhawulweni sokuphelela ngokusebenzisa GPRS futhi EDGE ubuchwepheshe bamuva. ethembisa kakhulu kufanele kubhekwe njengendlela mobile zokuxhumana uhlelo ngekhodi division iziteshi CDMA ukuthi kukhona yobumfihlo olungenakuqhathaniswa namandla ukusebenza. Namuhla, ukwakha 3G mobile zokuxhumana uhlelo ngokuhambisana standard futhi MT-2000, akhiwa International Telecommunication Union, isebenzisa ezintathu okujwayelekile ngokusekelwe CDMA ubuchwepheshe: i-CDMA ONE, CDMA 2000 futhi WCDMA. Njengengxenye ejwayelekile IMT-2000, imisebenzi ku ukudalwa satellite siqu zokuxhumana mobile izinhlelo Orbocomm, Thuraya, Clobal Star, Iridium. Nakuba ukusebenza kwezentengiselwano izinhlelo engakaze kufinyelelwa ngenxa izinkinga imali yokwakha kanye nobunzima bobuchwepheshe. Ukuze uthole ukwaziswa ukuxhumana izinkampani is neshaya kahle uhlelo lomsakazo DECT.

Fast isignali uhlelo ukudluliswa

Ngenxa yentuthuko kwezokuhlolwa kwezinkanyezi Microelectronics ubuchwepheshe, tibuye esetshenziswa lanamuhla mobile ngemishini ye-computer nezingosi zokuxhumana kanye nezokuxhumana, ezifana-Bluetooth, ZigBee, ingabe i-WiMAX, i-WiFi kanye nabanye. Ekusebenteni, ukusetshenziswa exotic ukudluliswa izinhlelo, okuyinto zidalwe kusetshenziswa izimiso ezivamile namacebo ukwakhiwa kanye adapters isiteshi esihlukile ukuxhuma kuya esihambelanayo iziteshi yokudlulisela. Hydroacoustic zokuxhumana uhlelo ukuxhumana ngaphansi kwamanzi usebenzisa kunyakaza ultrasonic ku 8-20 kHz at ibanga 4 km. zokuxhumana Laser izinhlelo zisebenzisa lasers nge nombono ka 1-10 microns, futhi lisetshenziswe isikhala link. Ryazan ithuluzi okwenza isitshalo (Russia) ekhiqizwa idivayisi laser transceiver kokunikezela isignali ukudluliswa izinga mayelana 200 Mbit / isekhondi phezu ibanga 2-10 km izimo eliwumhlaba futhi wasebenzisa isibonelo ngokudlulisa ulwazi phakathi eziteshini base mobile zokuxhumana. izinhlelo Ukuxhumana imigudu kanye nokusetshenziswa komhlaba eyayivuza (antenna) ikhebula, isib, EUPEN amafemu imvamisa uhla 30-1800 MHz. lososayensi wasungula kungenzeka yokudlulisela ngamagagasi omsakazo gektametrovogo uhla ku yembathani Earth. Kukholakala ukuthi ngesikhathi nokubekwa transponder esifundeni 200 m kungadalwa isixhumanisi zokuxhumana ngokudlulisa isiginali nge nomkhakha we mayelana 500 Hz.

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