2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Hauv kev sib txuas lus satellite, tus neeg nqa khoom-rau- suab nrov-qhov sib piv (C / N 0) yog qhov piv ntawm cov cab kuj fais fab C rau lub suab nrov ceev N0, nthuav tawm hauv dB-Hz. Thaum txiav txim siab tsuas yog lub receiver ua lub suab nrov, nws yog hu ua carrier-to-receiver-noise-density ratio.
CNR suav li cas?
Tus CNR raug xam raws li tus nqi tag nrho ntawm (ROI tus nqi hauv daim siab ib txwm rho tawm ROI ntawm cov rog) faib los ntawm (SD ntawm rog). Piv txwv li, SNR tus nqi rau daim siab dluab, piv txwv li, tau xam raws li tus nqi ntawm ROI hauv daim siab muab faib los ntawm SD ntawm ROI hauv daim siab.
Qhov txawv ntawm CNR thiab SNR yog dab tsi?
C / N Ratio (CNR) sawv cev rau Tus Neeg Siv Khoom rau Suab nrov. Nws yog ntsuas tom qab modulation. S/N Ratio (SNR) stands for Signal to Noise Ratio. Nws yog ntsuas ua ntej modulation.
C i hauv GSM yog dab tsi?
GSM yog qhov cuam tshuam kev txwv. Tus neeg nqa khoom-rau-kev cuam tshuam piv(C / I), tseem hu ua cuam tshuam kev tiv thaiv piv, hais txog qhov piv ntawm txhua qhov muaj txiaj ntsig rau txhua qhov tsis muaj txiaj ntsig. … Lwm yam teeb liab cuam tshuam los ntawm sab nraud (chaw nres tsheb radar, cov khoom siv sib txuas tsis raug cai, suab nrov ntawm ib puag ncig, thiab lwm yam)
cn0 yog dab tsi?
Los ntawm Wikipedia, phau ntawv qhia dawb. CNO yuav xa mus rau: C/N0, tus cab kuj-rau- suab nrov-qhov sib piv ntawm a teeb liab . Tus tub ceev xwm ceeb toom rau tus neeg raug mob, tus neeg saib xyuas qhia cov txheeb ze ntawmtuag los yog raug mob.
Pom zoo:
Puas yog cov dab dab dab dab dab dab dab dab dab dab dab dab?
Myth: Ib tug dab tshos tsis yog neeg ncaj ncees yog tiasnws haum yog. Fact: Tu siab, qhov no yog ib lo lus tsis tseeb uas tau raug perpetuated los ntawm aversive trainers. Txawm hais tias haum rau lub caj dab kom zoo khawb rau hauv cov tawv nqaij rhiab nyob ib ncig ntawm lub caj dab, uas ua rau muaj kev puas tsuaj loj rau cov thyroid, esophagus, thiab trachea.
Dab tsi yog kev sib txuas lus nrog piv txwv?
Piv txwv ntawm kev sib txuas lus hauv qab suav nrog piav qhia lub koom haum lub luag haujlwm thiab lub tswv yim lossis piav qhia lub koom haum lub zeem muag. … Lwm qhov piv txwv ntawm kev sib txuas lus poob qis yog pawg thawj coj saib xyuas qhia kev tswj hwm kom ua ib qho tshwj xeeb.
Puas yog kev sib txuas lus lossis kev sib txuas lus?
yog tias telecommunication yog (tsis suav tau) kev tshawb fawb thiab thev naus laus zis ntawm kev sib txuas lus ntawm cov lus nyob deb uas siv hluav taws xob, hluav taws xob lossis hluav taws xob impulses thaum kev sib txuas lus yog kev tshawb fawb thiab thev naus laus zis ntawm kev sib txuas lus.
Puas piv thiab sib piv cov lus sib piv?
Cov lus sib piv thiab qhov sib txawv yog synonyms, tab sis txawv ntawm nuance. Tshwj xeeb, sib piv txhais tau hais tias lub hom phiaj ntawm kev qhia tus txheeb ze muaj txiaj ntsig lossis kev ua tau zoo los ntawm kev nthuav tawm cov yam ntxwv zoo txawm tias zoo sib xws lossis sib txawv.
Nyob hauv kev sib txuas lus sib txuas lus?
Nyob rau hauv nplooj ntawv no koj tuaj yeem tshawb pom 11 cov lus sib piv, cov lus sib piv, cov lus qhia tsis zoo, thiab cov lus hais txog kev sib tham, xws li: domino-effect, causal nexus,, saw xwm txheej, tshuaj-reactivation, concatenation ntawm cov xwm txheej, hmoov tsheb ciav hlau, ripples nyob rau hauv lub pas dej, vicious-lub voj voog, fission thiab kinetic txoj kev xav.
