Mkuyu 6-6 ndi chipika chithunzi cha mmene digito baseband chizindikiro kufala dongosolo.Amapangidwa makamaka ndi fyuluta yotumizira (chopanga chizindikiro cha tchanelo), tchanelo, zosefera zolandirira alendo, ndi chosankha chazitsanzo.Pofuna kuonetsetsa kuti dongosololi likugwira ntchito modalirika komanso mwadongosolo, payeneranso kukhala njira yolumikizirana.
Ntchito za chipika chilichonse pachithunzichi komanso momwe zimayendera potengera ma siginecha zikufotokozedwa mwachidule motere:
(1) Chizindikiro choyambirira cha njira (sefa yotumizira).Ntchito yake ndikupanga baseband sign waveform yoyenera kufalitsa mayendedwe.Chifukwa zolowetsa zake nthawi zambiri zimakhala khodi yopatsira yomwe imapangidwa ndi encoder yamtundu wa code, mawonekedwe ofananirako oyambira nthawi zambiri amakhala amtundu wamakona anayi, ndipo mawonekedwe ake ndi otakata kwambiri, omwe sangathandize kufalitsa.Fyuluta yotumizira imagwiritsidwa ntchito kupondereza bandi yolowera ndikusintha ma code transmission kukhala baseband sign waveform yoyenera kufalitsa njira.
(2) Channel.Ndi sing'anga yomwe imalola kuti ma sign a baseband adutse, nthawi zambiri njira yolumikizira mawaya, monga chopindika, chingwe cha coaxial, ndi zina zambiri. kupotozedwa.Kuphatikiza apo, phokoso n (T) limalowetsedwa mumsewu, ndipo amalingaliridwa kuti ndi phokoso loyera la Gaussian lomwe lili ndi tanthauzo la zero.
(3) Fyuluta yolandirira alendo Imagwiritsidwa ntchito polandila ma sigino, kusefa phokoso la mayendedwe ndi zosokoneza zina momwe ndingathere, kufananiza mawonekedwe a tchanelo, ndikupanga mawonekedwe a baseband kuti agwirizane ndi zisankho.
(4) Chosankha zitsanzo.Ndiko kuyesa ndikuzindikira mawonekedwe amtundu wa fyuluta yolandirayo panthawi yodziwikiratu (yoyendetsedwa ndi kugunda kwanthawi kochepa) kuti mubwezeretsenso kapena kutulutsanso chizindikiro cha baseband kumbuyo kwa mawonekedwe osasangalatsa komanso phokoso.
(5) Kuthamanga kwa nthawi komanso kusinthasintha kwanthawi kochepa komwe kumagwiritsidwa ntchito poyesa zitsanzo kumachotsedwa pa siginecha yomwe idalandilidwa ndi gawo lochotsamo.Kulondola kwa nthawi yocheperako kumakhudza mwachindunji zotsatira za chisankho.
Izi ndizomwe zimapangidwira makina otumizira ma sigino a digito baseband obweretsedwa ndi Shenzhen HDV Phoelectron Technology Co., Ltd. kwa inu.Ndikukhulupirira kuti nkhaniyi ikuthandizani kuti muwonjezere chidziwitso chanu.Kupatula nkhaniyi ngati mukuyang'ana kampani yabwino yopanga zida zoyankhulirana zama fiber zomwe mungaganizirezambiri zaife.
Shenzhen HDV photoelectric Technology Co., Ltd. ndiyomwe imapanga zinthu zolumikizirana.Pakadali pano, zida zomwe zimapangidwa zimakwiriraZithunzi za ONU, Optical module mndandanda, Zithunzi za OLT,nditransceiver mndandanda.Titha kupereka ntchito makonda pazochitika zosiyanasiyana.Mwalandiridwafunsani.
