Dudziro yakadzama yejitter
Kana chiyero che data chehurongwa chikawedzera, iyo jitter amplitude yakayerwa mumasekonzi mashoma icharamba yakangofanana, asi kana ikayerwa muchidimbu chenguva yenguva diki, inozowedzera zvakaenzana nechiyero che data, zvichikonzera bit. kukanganisa. Naizvozvo, iyo yakabatana jitter inofanirwa kudzikiswa zvakanyanya sezvinobvira muhurongwa kuti uvandudze mashandiro ehurongwa hwese.
Jitter inotsanangura kuchinjika kwechiratidzo, ndiko kuti, kutsauka kwenguva pfupi kwechiratidzo kubva panzvimbo yayo yenguva yakakodzera pane imwe nguva.
1. Dudziro yenzvimbo dzemharadzano
The crossover ratio ye general standard sign is 50%, zvinoreva kuti chiratidzo "1" uye "0" account yega yega yehafu yezinga. Kuyera chiyero chekubatanidza, shandisa nzira yenhamba inoratidzwa mumufananidzo. Muchinjikwa nhanho iavhareji yakaverengerwa zvinoenderana nehwindo repakati pehuwandu hwakamira hwepamuchinjikwa, uye chikamu chayo equation iri sezvizvi (apo iyo 1 uye 0 level ndiyo avhareji kukosha kwe20% pakati pemepu yeziso, ndiko kuti, kutendeuka kubva ku40% kusvika ku60%
2.Effect
Kugona kwechiratidzo 1 kana 0 kutumira misa kunosiyana nechikamu chenzvimbo dzekuyambuka. Sezvinoratidzwa mumufananidzo, iyo iri kuruboshwe ndiyo mepu yeziso ine hukama hwakasiyana-siyana, hunoenderana neyakakodzera 1 uye 0 pulse masaini kurudyi. Panguva imwecheteyo, isu tinogona zvakare kunzwisisa hukama pakati pehupamhi hweakasiyana pulse chiratidzo chenguva uye chikamu chemuchinjikwa chegirafu.
3.Summarize
Kune masaini akajairwa, avhareji akagovaniswa masaini mazinga 1 uye 0 ndiwo anonyanya kuwanda. Zvinowanzodikanwa kuti ziso-mufananidzo muchinjiro wemuchinjiro uri 50%, ndiko kuti, iyo yakafanana chiratidzo pulse kureba 1 uye 0 inoshandiswa seyero yekuona maparamita akakodzera. Naizvozvo, iyo yakaenzana amplitude kurasikirwa kuongororwa kunokonzerwa nekutsauswa kweakasiyana 1 uye 0 chiratidzo mazinga anogona kunyatsoyerwa zvichienderana nekugoverwa kweiyo yeso cross ratio hukama. Semuyenzaniso, kana chiyero chemuchinjiko cheziso chakakurisa, kureva kuti, masaini akawanda e1 level anofambiswa, chiratidzo chikanganiso, kudzivirira uye miganhu yayo ichasimbiswa zvinoenderana nehukama hwepakati. Chiyero chemuchinjiko weziso idiki kwazvo, ndiko kuti, kutapurirana kweakawandisa 0 nhanho masaini, kazhinji zviri nyore kukonzera iyo inogamuchira chiratidzo haisi nyore kubvisa iyo frequency kubva mairi, zvichikonzera kutadza kuwiriranisa, zvichikonzera kurasikirwa kwekuenderana. Iyo yakaenzana neskweya wave, zvichikonzera kusawirirana, uye isingasviki 50% yesquare wave chikamu..
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