He wehewehe hohonu o ka jitter
Inā hoʻonui ʻia ka nui o ka ʻikepili o ka ʻōnaehana, ʻo ka jitter amplitude i ana ʻia i loko o kekahi mau kekona e noho like ia, akā ke ana ʻia i loko o kahi hapa o ka manawa o ka manawa bit, e piʻi like ia me ka helu ʻikepili, e hopena i ka bit. hewa. No laila, pono e hoʻemi ʻia ka jitter pili e like me ka hiki i ka ʻōnaehana e hoʻomaikaʻi i ka hana holoʻokoʻa.
Hōʻike ʻo Jitter i ka neʻe ʻana o kahi hōʻailona, ʻo ia hoʻi, ka haʻalele pōkole o kahi hōʻailona mai kona kūlana manawa kūpono i kekahi manawa.
1. Ka wehewehe ʻana i nā kiko kiko
ʻO ka lākiō crossover o ka hōʻailona maʻamau maʻamau he 50%, ʻo ia hoʻi ka hōʻailona "1" a me "0" i kēlā me kēia helu no ka hapalua o ka pae. No ke ana ʻana i ka lākiō pili, e hoʻohana i ke ʻano helu helu i hōʻike ʻia ma ke kiʻi. ʻO ka pae keʻa ka awelika i helu ʻia e like me ka puka aniani waena o nā ʻikepili kūhelu o ke kiko keʻa, a penei kona hoʻohālikelike like ʻana (kahi o ka pae 1 a me 0 ka waiwai awelika o 20% i waenakonu o ka palapala ʻāina maka. ʻo ia hoʻi, ka hoʻololi ʻana mai 40% a 60%
2. Ka hopena
ʻO ka hiki o kahi hōʻailona 1 a i ʻole 0 ke hoʻouna i ka nuipaʻa like ʻole me ka hapa o nā wahi keʻa. E like me ka mea i hōʻike ʻia ma ke kiʻi, ʻo ke kiʻi ma ka hema ka palapala maka me nā pilina kea like ʻole, e pili ana i nā hōʻailona pulse kūpono 1 a me 0 ma ka ʻākau. I ka manawa like, hiki iā mākou ke hoʻomaopopo i ka pilina ma waena o ka laulā o ka manawa hōʻailona pulse like ʻole a me ka māhele keʻa o ka pakuhi.
3. Hōʻuluʻulu
No nā hōʻailona maʻamau, ʻoi aku ka maʻamau o nā pae hōʻailona puʻunaue 1 a me 0. Pono ʻia ʻo 50% ka lākiō keʻa kiʻi maka, ʻo ia hoʻi, hoʻohana ʻia ka lōʻihi pulse hōʻailona like ʻo 1 a me 0 e like me ka maʻamau e hōʻoia i nā ʻāpana kūpono. No laila, hiki ke ana maikaʻi ʻia ka helu ʻana o ka pohō amplitude pili ma muli o ka haʻalele ʻana o nā pae hōʻailona like ʻole 1 a me 0 e like me ka puʻunaue ʻana o ka pilina maka kea. No ka laʻana, inā nui loa ka lākiō keʻa maka, ʻo ia hoʻi, he nui loa nā hōʻailona pae 1 i hoʻouna ʻia, e hōʻoia ʻia ka hewa o ka hōʻailona, ka pale a me kona mau palena e like me kēia pilina lākiō. ʻOi aku ka liʻiliʻi o ka lākiō keʻa maka, ʻo ia hoʻi, ʻo ka hoʻouna ʻana i nā hōʻailona pae 0 he nui, maʻalahi ke kumu ʻaʻole maʻalahi ka hōʻailona hoʻokipa e unuhi i ke alapine mai ia mea, ka hopena i ka hiki ʻole ke hoʻonohonoho, e hopena i ka nalowale o ka synchronization. Ua like ia me ka hawewe huinahalike, e hopena ana i ka like ole o ke alapine, a emi iho malalo o 50% o ka hawewe huinaha.
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