Mudhijitari yekutaurirana sisitimu, izvo zvinogashirwa nemugamuchiri ihuwandu hwechiratidzo chinofambiswa uye ruzha rwechiteshi.
Kugashira kwakaringana kwemasaini edhijitari kwakavakirwa padiki kukanganisa mukana se "yakanakisa" chiyero. Zvikanganiso zvakatariswa muchitsauko chino zvinonyanya kukonzerwa nebhendi-shoma Gaussian chena ruzha. Pasi peiyi fungidziro, iyo bhanari yedhijitari modulated siginecha yakakamurwa kuita mhando nhatu: yechokwadi chiratidzo, yekuvimbika chiratidzo uye kushanduka kwechiratidzo, uye kushoma kukanganisa kukanganisa kunoongororwa zvakanyanya imwe neimwe. Pamusoro pezvo, mukana wekukanganisa wekugamuchira multi-base bhendi chiratidzo inoongororwa.
Nheyo yekutanga yekuongorora ndeyekutora huwandu hwesampling kukosha kwechinhu chinogashira chiratidzo sevector muK-dimensional inogamuchira vector nzvimbo, uye kupatsanura iyo inogamuchira vector nzvimbo mumatunhu maviri. Sarudza kana kukanganisa kwaitika zvichienderana nenzvimbo iyo vector yakagamuchirwa inowira mairi. Iyo block dhizaini yeakanyanya kugamuchira inogona kuwanikwa uye iyo bit kukanganisa mwero inogona kuverengerwa nechisarudzo chesarudzo. Ichi chidimbu chikanganiso mwero we theoretically optimal, kureva kuti, zvinokwanisika zvishoma.
Iyo yakakwana bit kukanganisa mwero weiyo binary determinate chiratidzo inotarwa neiyo corelation coefficient p uye chiratidzo-kune-ruzha reshiyo E/n., asi haina hukama hwakananga nechiratidzo chesaizi. Iyo idiki iyo corelation coefficient p, inodzika iyo bit kukanganisa mwero. 2PSK siginecha ine diki diki coefficient coefficient (p=-1) uye yakaderera bit kukanganisa mwero. Chiratidzo che2FSK chinogona kutorwa sechiratidzo che orthogonal chine corelation coefficient p=0.
Nokuda kwechiratidzo nechiratidzo uye kuchinja, chiratidzo cheFSK chete chinoshandiswa semumiririri wekuongorora, nokuti muchiteshi ichi, amplitude uye chikamu chechiratidzo chinoshandurwa zvisina kufanira nekuda kwesimba reruzha, saka chiratidzo cheFSK chinonyanya kukodzera kushandiswa. Incoherent demodulation ndiyo nzira yekugamuchira yakanakisa nekuda kwekuchinja kusingaite kwechiratidzo chikamu chakakonzerwa nechiteshi.
Nekuenzanisa mwero wekukanganisa kweanogamuchira uye anonyatso gamuchira, zvinogona kuoneka kuti kana chiratidzo-ku-ruzha simba reshiyo r mune chaiyo inogamuchira yakaenzana nereshiyo E / n yekodhi simba uye ruzha simba rekuona. density mune akanakisa anogamuchira, iyo bit kukanganisa mwero kuita kwevaviri kwakafanana. Nekudaro, nekuti iye chaiye anogamuchira anogara asingagoneki kuzadzisa iyi poindi. Naizvozvo, kuita kweanogamuchira chaiko kunogara kwakaderera kune kweakanakisa anogamuchira.
Uyu ndiye ShenzhenHDV Phoerekitironi Technology Ltd. kukuunza iwe nezve "yakanakisa kugashira kwemasaini edhijitari", tariro yekukubatsira, uye ShenzhenHDV Phoerekitironi Technology Ltd. kuwedzera kuneONUseries, transceiver series,OLTdzakatevedzana, asiwo dzinogadzira module dzakatevedzana, dzakadai se: Kukurukurirana optical module, optical communication module, network optical module, communication optical module, optical fiber module, Ethernet optical fiber module, nezvimwewo, inogona kupa iyo inoenderana mhando sevhisi kune akasiyana vashandisi 'zvido , gamuchirai kushanya kwenyu.
