Hajoale, ka tsoelo-pele ea butle-butle ea StarLink, Telesat, OneWeb le AST's satellite's deplored constellation plans, low-orbit satellite communications li ntse li phahama hape.Mohoo oa "ho kopanya" lipakeng tsa likhokahano tsa sathelaete le likhokahano tsa cellular tsa lefatše le ona o ntse o eketseha.Chen Shanzhi o lumela hore mabaka a ka sehloohong a sena ke tsoelo-pele ea theknoloji le liphetoho tse hlokahalang.
Mabapi le thekenoloji, e 'ngoe ke tsoelo-pele ea theknoloji ea ho qala ka sathelaete, ho kenyelletsa le mekhoa e mecha ea theknoloji e kang "motsu o le mong o nang le li-satellite tse ngata" le ho tsosolosa lirokete;ea bobeli ke tsoelo-pele ea theknoloji ea tlhahiso ea sathelaete, ho kenyelletsa le tsoelo-pele ea thepa, phepelo ea motlakase, le theknoloji ea ho sebetsa;ea boraro ke thekenoloji e kopantsoeng ea potoloho Tsoelo-pele ea lisathelaete, miniaturization, modularization, le componentization ea lisathelaete, le ho ntlafatsa bokhoni ba ho sebetsana le boto;ea bone ke tsoelo-pele ea theknoloji ea puisano.Ka tsoelo-pele ea 3G, 4G, le 5G, li-antenna tse kholo, leqhubu la millimeter Ka tsoelo-pele ea sebōpeho joalo-joalo, theknoloji ea puisano ea thelefono ea thelefono ea lefatše e ka boela ea sebelisoa ho li-satellite.
Ka lehlakoreng la tlhokeho, ka katoloso ea lits'ebetso tsa indasteri le mesebetsi ea batho, melemo ea puisano ea satellite lefats'e ka bophara le tšireletso ea sebaka e se e qala ho hlaha.Ho tloha kajeno, tsamaiso ea lefatše ea puisano ea mehala ea lefatše e koahetse ho feta 70% ea baahi, empa ka lebaka la lintlha tsa tekheniki le moruo, e akaretsa feela 20% ea sebaka sa mobu, e leng feela karolo ea 6% e thehiloeng holim'a lefatše.Ka nts'etsopele ea indasteri, boema-fofane, maoatle, botšoasi ba litlhapi, petroleum, tlhokomelo ea tikoloho, mesebetsi ea kantle ho litsela, hammoho le maano a naha le likhokahano tsa sesole, joalo-joalo, li na le tlhoko e matla ea sebaka se pharaletseng le sebaka.
Chen Shanzhi o lumela hore khokahanyo e tobileng ea liselefouno ho sathelaete e bolela hore puisano ea satellite e tla kena 'marakeng oa bareki ho tloha' marakeng oa kopo ea indasteri.Leha ho le joalo, ke ntho e soabisang ho bolela hore Starlink e ka nkela 5G sebaka kapa ea senya.Chen Shanzhi o bontšitse hore puisano ea sathelaete e na le mefokolo e mengata.Ea pele ke khaso e fosahetseng ea sebaka.Lisathelaete tse tharo tse phahameng tsa orbit synchronous li ka koahela lefatše lohle.Lisathelaete tse makholo a tlaase li tsamaea ka lebelo le holimo ha li bapisoa le fatše 'me li khona ho koahela ka ho lekana feela.Libaka tse ngata ha li sebetse hobane ha ho na basebelisi.;Ea bobeli, matšoao a sathelaete ha a khone ho koahela ka hare le ka ntle a koahetsoeng ke litsela tse ka holimo le meru ea lithaba;ea boraro, miniaturization ea li-terminals tsa sathelaete le ho hanyetsana pakeng tsa li-antenna, haholo-holo batho ba se ba tloaetse li-antenna tse hahiloeng tsa liselefouno tse tloaelehileng (basebedisi ha ba na kutloisiso), Thelefono ea morao-rao ea khoebo ea satellite e ntse e e-na le antenna e ka ntle;ea bone, katleho ea spectral ea puisano ea sathelaete e tlase haholo ho feta ea puisano ea mehala ea cellular.Spectrum e sebetsa hantle ka holimo ho 10 bit/s/Hz.Qetellong, 'me ea bohlokoa ka ho fetisisa, hobane e kenyelletsa likhokahano tse ngata tse kang tlhahiso ea sathelaete, tlhahiso ea sathelaete, lisebelisoa tsa fatše, ts'ebetso ea sathelaete le tšebeletso, litšenyehelo tsa kaho le ts'ebetso le tlhokomelo ea sathelaete e' ngoe le e 'ngoe ea puisano ke makhetlo a leshome kapa esita le makhetlo a makholo a fatše. setsi sa motheo, kahoo tefiso ea puisano e tla eketseha ka sebele.E phahameng ho feta likhokahano tsa cellular tsa lefatše tsa 5G.
Ha ho bapisoa le tsamaiso ea mehala ea thelefono ea lefats'e, liphapang tse kholo tsa tekheniki le liphephetso tsa sistimi ea puisano ea satellite ke tse latelang: 1) Litšobotsi tsa phatlalatso tsa mocha oa satellite le mocha oa lefats'e li fapane, puisano ea satellite e na le sebaka se selelele sa phatlalatso, tahlehelo ea tsela ea phatlalatso e kholo, 'me tieho ea phetiso e kholo.Ho tlisa mathata ho hokahanya tekanyetso, kamano ea nako le morero oa phetisetso;2) Motsamao oa sathelaete o lebelo le phahameng, o bakang ts'ebetso ea ho latedisa ka nako, ho latedisa maqhubu a ho latedisa (Doppler effect), taolo ya motsamao (ho feto-fetoha ha marako khafetsa le ho feto-fetoha ha sathelaete), ho feto-fetoha ha modulation ts'ebetso ea Demodulation le mathata a mang.Ka mohlala, selefouno e na le limithara tse makholo a seng makae feela ho isa boemong ba k'hilomithara ho tloha seteisheneng sa setsi sa fatše, 'me 5G e ka tšehetsa lebelo la ho sisinyeha ha terminal ea 500km / h;ha sathelaete ea orbit e tlase e ka ba 300 ho 1,500km hole le mohala oa thekeng oa fatše, 'me sathelaete e tsamaea ka lebelo le ka bang 7.7 ho isa ho 7.1km/s ho ea fatše, e fetang 25,000km / h.
Nako ea poso: Dec-20-2022
