Qhov twg yog qhov siab uplink lossis downlink?

Cov txheej txheem:

Qhov twg yog qhov siab uplink lossis downlink?
Qhov twg yog qhov siab uplink lossis downlink?

Video: Qhov twg yog qhov siab uplink lossis downlink?

Video: Qhov twg yog qhov siab uplink lossis downlink?
Video: Yog Tim Qhov Twg - Mang Vang [Official Audio] Nkauj Tawm Tshiab 2021-2022 2024, Kaum ib hlis
Anonim

Nyob hauv kev sib txuas lus satellite, qhov kev nce qib nce siab dua qhov zaus downlinkvim tias theem attenuation nce nrog qhov nce ntau zaus. Lub zog ntawm qhov chaw nres tsheb hauv av (Base Station) yog ntau dua piv rau lub zog muaj nyob ntawm satellite.

Qhov twg loj dua uplink lossis downlink?

Lub uplink zaus siab dua qhov qis duavim tias lub tshuab xa hluav taws xob hauv qhov txuas hauv nqes qis muaj qhov txwv tsis pub siv hluav taws xob siv hluav taws xob vim nws nyob hauv lub nkoj ntawm satellite qhov twg satellite yog powered los ntawm photovoltaic generators.

Dab tsi yog qhov txawv ntawm uplink thiab downlink zaus?

Qhov zaus uplink yog qhov zaus uas yog siv rau kev xa cov teeb liab los ntawm lub ntiaj teb chaw nres tsheb transmitter mus rau lub satellite. Lub downlink zaus yog qhov zaus uas yog siv rau kev sib kis ntawm cov teeb liab ntawm satellite mus rau lub ntiaj teb chaw nres tsheb receiver.

Vim li cas thiaj siv ntau zaus hauv kev sib txuas lus satellite?

Cov xov tooj cua zaus siv rau kev sib txuas lus sib txuas mus los ntawm kab ntawm qhov pom thiab yog li cuam tshuam los ntawm qhov nkhaus ntawm lub ntiaj teb. Lub hom phiaj ntawm kev sib txuas lus satellites yog txhawm rau xa cov teeb liab nyob ib puag ncig ntawm qhov nkhaus ntawm lub ntiaj teb tso cai rau kev sib txuas lus ntawm cov ntsiab lus ntawm thaj chaw sib cais

Puas siv tib zaus siv rau kev sib txuas lus uplink thiab downlink?

Lub uplink thiab downlink transmitters siv cov zaus sib cais rau kev sib kis; Yog li ntawd, ob qho tib si downlink thiab uplink transmitters tuaj yeem xa tau txhua lub sijhawm thiab tib lub sijhawm [3].

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