Kehiki ke laweʻoi aku ka kiʻekiʻe o ke kahawai kino ma mua o ke koi ʻana o hoʻokahi hōʻailona, hiki ke kaʻana like ke kahawai e nā hōʻailona lehulehu.ʻo kahi laʻana, ʻo ka laina kumu o kahi ʻōnaehana kelepona he mau kaukani hōʻailona i hoʻouna ʻia ma hoʻokahi fiber optical. ʻO Multiplexing ka ʻenehana e hoʻonā i ka hoʻohana ʻana i kahi ala e hoʻouna i nā hōʻailona he nui i ka manawa like. ʻO ke kumu ka hoʻohana piha ʻana i ke alapine a i ʻole nā kumu manawa o ke kahawai a hoʻomaikaʻi i ka nui o ka hoʻohana ʻana o ke kahawai.
Aiaʻelua ala maʻamau o ka hōʻailona multiplexing: hoʻohana pinepine ʻana i ka mahele manawa (FDM) a me ka māhele manawa (TDM) Hoʻohana pinepine ʻia ka hoʻohui ʻana i nā hōʻailona kikohoʻe. Hoʻohana nui ʻia ʻo Frequency Division Multiplexing no ka Multiplexing o nā hōʻailona analogue akā hiki ke hoʻohana ʻia no nā hōʻailona kikohoʻe. E kūkākūkā kēia ʻāpana i ke kumu a me ka hoʻohana ʻana o FDM.
Māhele alapine Multiplexinghe hana multiplexing e puunaue ana i na auwai e like me ka pinepine. I ka FDM, ua māhele ʻia ka bandwidth o kahi kanal i ka plurality o nā alapine (sub-channels) ʻaʻole i uhi kekahi i kekahi. Aia kēlā me kēia kaha o nā hōʻailona i kekahi o nā kanal, a pono e mālama ʻia nā kaha alapine i hoʻohana ʻole ʻia (nā pūʻali kiaʻi) ma waena o nā kaha i mea e pale ai i ka uhi ʻana o ka hōʻailona. Ma ka hopena e loaʻa ai, hoʻokaʻawale kahi kānana band-pass kūpono i nā hōʻailona lehulehu a hoʻihoʻi i nā hōʻailona i koi ʻia.
Ke hoike mai nei keia kiike kiʻikuhi poloka kumu o ka ʻōnaehana hoʻonui pinepine. Ma ka hopena o ka hoʻouna ʻana, e kau mua ʻia kēlā me kēia hōʻailona leo baseband ma kahi kānana low-pass (LPF) e kaupalena i ke alapine kiʻekiʻe o kēlā me kēia hōʻailona. A laila, hoʻololi ʻia kēlā me kēia kaha o nā hōʻailona i nā alapine lawe like ʻole, i hoʻoneʻe ʻia kēlā me kēia kahawai o nā hōʻailona i kona ʻano alapine, a laila hui ʻia a hoʻouna ʻia i ke kahawai no ka hoʻouna ʻana. Hoʻohana ʻia ke ʻano o nā kānana band-pass me nā alapine waena like ʻole ma ka hopena e hoʻokaʻawale i nā hōʻailona modulated. Ma hope o ka hoʻoheheʻe ʻia ʻana, hoʻihoʻi ʻia nā hōʻailona baseband pili o kēlā me kēia kahawai.
I mea e pale aku aikeakea likema waena o nā hōʻailona pili, pono e koho pono ʻia ke alapine lawe F_ c1,f_ c2,···,f_ Cn i mālama ʻia kekahi pūʻulu kiaʻi ma waena o nā kikoʻī hōʻailona modulated.
ʻO kēia ka meaShenzhen HDV phoelelectron Technology Co., Ltd. ua lawe mai iā ʻoe e pili ana i ka ʻike o ka mahele pinepine pinepine. Manaʻo wau e kōkua kēia ʻatikala iā ʻoe e hoʻonui i kou ʻike. Ma waho aʻe o kēia ʻatikala inā ʻoe e ʻimi nei i kahi ʻoihana mea hana uila fiber optical maikaʻi āu e noʻonoʻo aie pili ana iā mākou.
ʻO Shenzhen HDV photoelectric Technology Co., Ltd. ka mea hana nui i nā huahana kamaʻilio. I kēia manawa, uhi nā mea hana i hana ʻia i kamoʻo ONU, moʻo module optical, OLT moʻo, amoʻo transceiver. Hiki iā mākou ke hāʻawi i nā lawelawe kūikawā no nā hiʻohiʻona like ʻole. Aloha oekukakuka.
