"Pula ea Satellite" e makatsang: Lisathelaete tse fetang 500 tsa LEO tsa Starlink li Lahlehile ke Ketsahalo ea Letsatsi

Ketsahalo: Ho Tloha ho Tahlehelo ka Nako le Nako ho ea ho Pula ea litloebelele

Ho senyeha ho hoholo ha lisathelaete tsa LEO tsa Starlink ha hoa etsahala ka tšohanyetso. Ho tloha ha lenaneo le qala ho qala ka 2019, tahlehelo ea sathelaete qalong e ne e le nyane (2 ka 2020), e tsamaellana le litheko tse lebelletsoeng tsa ho putlama. Leha ho le joalo, 2021 e bone spike e makatsang (litahlehelo tse 78), tse lateloang ke maemo a phahameng a tsitsitseng (99 ka 2022, 88 ka 2023). Koluoa ​​​​e ile ea fihla sehlohlolong sa 2024 ha lisathelaete tse 316 li ile tsa chesa - lipalo tse tharo tse fetileng - ka kakaretso ea tahlehelo e 583, e lekanang le ~ satellite e le 'ngoe e lahlehileng letsatsi le letsatsi kapa e le 1 ho ba 15 e hlolehileng ho phethela thomo ea eona.

Mosebetsi oa Letsatsi: Molato ea sa Bonahaleng

Lipatlisiso tsa NASA li tiisa kamano e tobileng pakeng tsa satellite deorbiting le potoloho ea letsatsi. Phatlalatso ea 2019 e tsamaellana le bonyane ba letsatsi, empa ha ts'ebetso ea letsatsi e ntse e eketseha, ho hula ha sepakapaka ho 340-550km orbits e ile ea eketseha ka > 50% nakong ea lifefo tsa geomagnetic. Sena se etsahala ha:

1. Li-flares tse hlahisoang ke letsatsi / li-coronal mass ejection li qhoma Lefatše
2. Lifefo tsa Geomagnetic li chesa le ho atolosa sepakapaka se ka holimo
3. Sepakapaka se atolositsoeng se eketsa ho hula, ho baka ho bola ha orbital

Makatsa: Maholiotsoana a Fokolang a Ipaka a Senya ho Feta

Ho fapana le se neng se lebelletsoe, 70% ea tahlehelo e etsahetse nakong ea lifefo tse itekanetseng/tse fokolang tsa geomagnetic. Liketsahalo tsena tsa nako e telele (matsatsi a tšoarellang / libeke) butle-butle li theola lipotoloho ho feta ho hlaphoheloa, ho fapana le lifefo tse matla empa tse khutšoanyane. Mohlala o hlokomelehang: Lisathelaete tse 40 ho tse 49 tsa Starlink tse phatlalalitsoeng ka Hlakola 2022 li ile tsa oela lifefong tse matla tse ntseng li tsoela pele.

Liphetoho tse tlase tsa Orbit

Le ha Starlink's 550km orbits e thusa likhokahano tse tlase-latency, haufi le Lefatše:

1. E beha meeli ea nako ea ts'ebetso ho lilemo tse ~ 5 (ha e bapisoa le orbit ea ISS's 400km)
2. E mpefatsa litlamorao tsa ho hula nakong ea maxima ea letsatsi
3. Haholo-holo e beha lisathelaete tsa liteko kotsing sebakeng sa 210km altitudes

Mathata a Kamoso

Ka li-satellite tsa 6,000 tsa Starlink tse ntseng li potoloha nakong ea boholo ba letsatsi - kopano ea nalane - bo-ramahlale ba hlokomelisa ka:

1. Phetoho e potlakileng ea satellite
2. Ho fokotseha ho ka bang teng ha ozone ho tsoa meahong ea aluminium oxide nakong ea ho kena hape SpaceX ho fokotsa tahlehelo ka ho qala ho tlatsa hape ka potlako le liprothokholo tsa othomathike tsa deorbit, empa ho tiea ha potoloho ea letsatsi e ntse e le taba ea bohlokoa indastering ka bophara.

Qetello

Ketsahalo ena e totobatsa taolo ea tlhaho holim'a theknoloji ea batho 'me e totobatsa tlhoko ea meralo ea sistimi ea LEO e ikarabellang bakeng sa tšusumetso ea letsatsi.

Chengdu Concept Microwave Technology CO., Ltd ke moetsi ea hloahloa oa lisebelisoa tsa 5G/6G RF bakeng sa puisano ea sathelaete Chaena, ho kenyeletsoa RF lowpass filter, highpass filter, bandpass filter, notch filter/band stop filter, duplexer, Power divider le directional coupler. Kaofela ha tsona li ka etsoa ho latela litlhoko tsa hau.

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