Ụdị nkiti nke ọnụọgụ dijitalụ ọnụọgụ abụọ bụ:ọnụọgụ ọnụọgụ ọnụọgụ abụọ (2ASK) - mgbanwe njupụta nke mgbaàmà ụgbọelu;Igodo mgbanwe ọnụọgụ ọnụọgụ abụọ (2FSK) - mgbanwe ugboro ugboro nke mgbaàmà ụgbọelu;igodo ọnụọgụ ọnụọgụ abụọ (2PSK) - mgbanwe nke mgbama ụgbọelu.Emere igodo ngbanwe oge dị iche (DPSK) n'ihi na usoro nke sistemụ 2PSK ejighị n'aka.
2ASK na 2PSK ha abụọ chọrọ bandwidth okpukpu abụọ ka ọnụego akara, ebe 2FSK chọrọ bandwidth karịa 2ASK na 2PSK.
Ọnụego mperi nke sistemu mgbanwe dijitalụ ọnụọgụ abụọ dị iche iche dabere na ntinye akara-na-mkpọtụ r nke demodulator.N'ihe gbasara mkpọtụ ọcha Gaussian na-emegide ihe mgbakwunye, 2PSK na-arụkọ ọrụ ọnụ nwere arụmọrụ kacha mma, 2FSK sochiri ya, yana 2ASK kachasị njọ.
Ajụjụ bụ otu n'ime ụzọ mgbanwe mgbanwe mbụ.Uru ya bụ na ọ na-eji eriri igwe dị elu ma nwee akụrụngwa dị mfe.Ọdịmma ya bụ na ọ naghị eme yana-arụ ọrụ nke ọma megide mkpọtụ ma na-enwe mmetụta maka mgbanwe na njirimara ọwa, nke na-eme ka ọ sie ike ịnweta onye na-ekpebi ihe nlele ka ọ rụọ ọrụ na steeti mkpebi kacha mma.
FSK bụ usoro mgbanwe dị mkpa na nzikọrịta ozi dijitalụ.Uru ya bụ na ọ nwere ikike mgbochi mgbochi siri ike ma ọ dịghị emetụta mgbanwe nke ọwa, ya mere FSK kwesịrị ekwesị maka ọwa na-ada ada;Ọdịmma ya bụ na eriri ejiri obosara obosara, ọkachasị maka mf-sk, yana iji eriri ahụ dị ala.Ka ọ dị ugbu a, a na-eji sistemụ FM eme ihe maka mgbasa ozi nke ọkara na obere ọsọ.
PSK ma ọ bụ DPSK bụ usoro ngbanwe nke nwere arụmọrụ nnyefe dị elu.Ike ya na-egbochi mkpọtụ siri ike karịa nke ASK na FSK, na mgbanwe nke njirimara ọwa adịghị emetụta ya ngwa ngwa.Ya mere, ejirila ya mee ihe n'ọtụtụ ebe na nnyefe data dị elu na nke ọkara.Mgbanwe oge zuru oke (PSK) nwere nsogbu nke enweghị isi n'usoro ihe na-ebu ibu na nhụsianya dị n'otu, nke a na-ejikarị eme ihe na nnyefe ozugbo na omume.MDPSK na-ejikarị eme ihe.
N'elu bụ isiokwu "Binary digital modulation," wetara gị Shenzhen HDV photoelectric Technology Co., Ltd. Ngwaahịa nkwurịta okwu nke ụlọ ọrụ na-emepụta:
Otu modul: ngwa anya eriri modul, Ethernet modul, ngwa anya eriri transceiver modul, ngwa anya eriri ohere modul, SSFP ngwa anya modul, naSFP ngwa anya eriri, wdg.
Otu ONU: EPON ONU, AC ONU, eriri anya ONU, CATV ONU, GPON ONU, XPON ONU, wdg.
Klas OLT: Mgbanwe OLT, Ọnụ ego nke GPON OLT, Ọnụ ego nke EPON OLT, nkwukọrịta OLT, wdg.
Ngwaahịa modul dị n'elu nwere ike inye nkwado maka ọnọdụ netwọk dị iche iche.Otu ọkachamara na R & D siri ike nwere ike inyere ndị ahịa aka na nsogbu teknụzụ, na otu ndị ahịa na-eche echiche na ndị ọkachamara nwere ike inyere ndị ahịa aka inweta ọrụ dị elu n'oge ndụmọdụ tupu oge na ọrụ mmepụta ihe.Nabata gịkpọtụrụ anyịmaka ụdị ajụjụ ọ bụla.
