Ib tug tob txhais ntawm jitter
Yog hais tias cov ntaub ntawv tus nqi ntawm lub system yog nce, lub jitter amplitude ntsuas nyob rau hauv ob peb feeb yuav nyob twj ywm roughly tib yam, tab sis thaum ntsuas nyob rau hauv ib feem ntawm lub sij hawm ntawm lub sij hawm me ntsis, nws yuav nce proportionately nrog cov ntaub ntawv tus nqi, ua rau me ntsis. yuam kev. Yog li ntawd, qhov cuam tshuam txog jitter yuav tsum raug txo kom ntau li ntau tau hauv qhov system txhawm rau txhim kho kev ua haujlwm tag nrho.
Jitter piav qhia txog qhov hloov pauv ntawm kab rov tav ntawm lub teeb liab, uas yog, qhov sib txawv ntawm lub sijhawm luv luv ntawm lub teeb liab los ntawm nws txoj haujlwm zoo tshaj plaws ntawm lub sijhawm tshwj xeeb.
1. Kev txhais cov ntsiab lus ntawm kev sib tshuam
Qhov sib piv ntawm cov qauv teeb liab dav dav yog 50%, uas txhais tau hais tias lub teeb liab "1" thiab "0" txhua tus account rau ib nrab ntawm qib. Txhawm rau ntsuas qhov sib piv sib piv, siv txoj hauv kev txheeb cais qhia hauv daim duab. Tus ntoo khaub lig theem yog qhov nruab nrab xam raws li qhov nruab nrab qhov rais ntawm ntsug txheeb cais ntawm tus ntoo khaub lig point, thiab nws qhov kev faib ua feem sib npaug yog raws li nram no (qhov twg qib 1 thiab 0 yog qhov nruab nrab tus nqi ntawm 20% nyob rau hauv nruab nrab ntawm lub qhov muag daim ntawv qhia, uas yog, kev hloov pauv ntawm 40% mus rau 60%
2. Cov nyhuv
Lub peev xwm ntawm lub teeb liab 1 lossis 0 los xa cov huab cua sib txawv nrog qhov sib faib ntawm cov ntsiab lus hla. Raws li pom hauv daim duab, daim duab ntawm sab laug yog daim duab qhia qhov muag nrog cov kev sib txawv ntawm qhov sib txawv ntawm qhov sib txawv, sib xws rau qhov cuam tshuam ntawm 1 thiab 0 pulse signals ntawm sab xis. Nyob rau tib lub sijhawm, peb kuj tuaj yeem nkag siab qhov kev sib raug zoo ntawm qhov dav ntawm lub sijhawm sib txawv ntawm cov mem tes thiab qhov sib piv ntawm cov duab.
3. Cov ntsiab lus
Rau cov teeb liab dav dav, qhov nruab nrab faib teeb liab theem 1 thiab 0 yog qhov ntau tshaj. Nws yog feem ntau yuav tsum tau hais tias lub qhov muag-daim duab cross piv yog 50%, uas yog, tib lub teeb liab mem tes ntev 1 thiab 0 yog siv raws li tus qauv los xyuas qhov cuam tshuam tsis. Yog li ntawd, qhov txheeb ze amplitude poob kev soj ntsuam los ntawm qhov sib txawv ntawm qhov sib txawv 1 thiab 0 teeb liab theem tuaj yeem ntsuas tau zoo raws li kev faib tawm ntawm qhov muag hla qhov sib piv. Piv txwv li, yog tias qhov muag hla qhov sib piv loj dhau, uas yog, ntau dhau 1 theem teeb liab raug xa mus, lub teeb liab yuam kev, tiv thaiv thiab nws cov kev txwv yuav raug txheeb xyuas raws li qhov kev sib raug zoo ntawm tus ntoo khaub lig no. Qhov sib piv ntawm qhov muag me me dhau lawm, uas yog, kev sib kis ntawm ntau dhau 0 theem teeb liab, feem ntau yooj yim ua rau lub teeb liab receiver tsis yooj yim rau rho tawm qhov zaus ntawm nws, ua rau tsis ua hauj lwm synchronize, ua rau synchronization poob. Nws yog sib npaug rau square nthwv dej, ua rau muaj qhov tsis sib haum xeeb, thiab tsawg dua 50% ntawm cov square yoj feem..
Cov saum toj no yog Shenzhen HDV Phoeletron Technology Ltd. coj cov neeg muas zaub hais txog "Optical qhov muag daim ntawv qhia yooj yim piav qhia II" zaj lus qhia, thiab peb lub tuam txhab yog ib tug tshwj xeeb zus tau tej cov optical network manufacturers, cov khoom uas koom nrog yogONUseries (OLT ONU/ACONU/CATVONU/GPONONU/XPONONU), Optical module series (optical fiber module / Ethernet optical fiber module / SFP optical module),OLT-pon-modules/">OLTseries (OLTkhoom siv /OLT hloov/optical mivOLT), thiab lwm yam., muaj ntau yam specifications ntawm kev sib txuas lus cov khoom rau cov kev xav tau ntawm txawv scenarios rau network txhawb, txais tos mus tham.