Umgca wokulibaziseka we-Optical: Isitshixo sokulinganisa ixesha elilungisiweyo
Ukuze kufunyanwe indlela echanekileyo yokwenza ukulibaziseka okunokuthenjwa kuyo nayiphi na i-spectroscopy esonjululwe ngexesha okanye iimvavanyo ezitshintshayo, kukho izinto ezininzi ekufuneka zenziwe.umgca wokulibazisainqanaba kufuneka liqwalaselwe ukunciphisa okanye ukususa iimpazamo ezinxulumene nenqanaba elithe ngqo. Kuyo nayiphi na i-spectroscopy kunye novavanyo lwe-dynamics oluxazululwe ngexesha, enye yezona zinto zibalulekileyo yi-optical delay line. Umgca oqhelekileyo we-optical delay uqulathe isibonisi esingasemva okanye isibuko esigoqekayo kwisigaba soguqulelo (Umfanekiso 1). Xa ukhetha inqanaba loguqulelo, iiparameter ezithile kwisigaba kunye nomqhubi okanye umlawuli kufuneka ziqwalaselwe, njengoko zinokuchaphazela uhlalutyo lwedatha kunye nokutolikwa. Iiparameter eziphambili zolawulo lwentshukumo ezichaphazela ukulinganiswa kwexesha ziquka ukulibaziseka okupheleleyo, intshukumo encinci yokunyuka (MIM), ukuphindaphindwa, ukuchaneka, kunye nempazamo yoomatshini.
Ipharamitha yokuqala ekufuneka iqwalaselwe kwinqanaba elithe ngqo yi-total delay (T) – ixesha elifunekayo ukuze ukukhanya kuqhubekele phambili ukuya kumboniso ongasemva.isixhobo se-opticalkwaye yenze indlela yokubuya. Oku kunxulumene ngokuthe ngqo noluhlu lokuhamba (L) lwesigaba esithe ngqo: T = 2*L/c, apho u-c sisantya sokukhanya kwi-vacuum. Ipharamitha elandelayo ebaluleke kakhulu yisisombululo sokulibaziseka (Δτ), esinxulumene ne-MIM yenqanaba lokuguqulela kwaye sibalwa kusetyenziswa ifomyula ethi Δτ = 2*MIM/c.
Kubalulekile ukwahlula phakathi kwe-MIM kunye nesisombululo senkqubo yokuhamba kuba zimele iingcamango ezimbini ezahlukeneyo. I-MIM ibhekisa kwintshukumo encinci enyukayo enokuthi isixhobo siyidlulisele ngokungaguqukiyo nangokuthembekileyo, ngoko ke imele amandla enkqubo; kwelinye icala, isisombululo (umboniso okanye isisombululo se-encoder) lixabiso elincinci elinokuboniswa ngumlawuli okanye ixabiso elincinci elinyukayo le-encoder, libhekisa kuphawu loyilo.
Enye iparameter yesigaba ebaluleke ngokulinganayo njenge-MIM kukuphindaphinda kwesigaba, okubhekiselele kubuchule benkqubo bokufikelela kwindawo eyalelweyo emva kwemizamo emininzi. Kwimilinganiselo eqhelekileyo yexesha elisonjululweyo, isigaba esithe ngqo siskena kumgama othile (ohambelana nokulibaziseka kwexesha elithile) kwaye sirekhoda ezinye iimpawu zesampulu ekujoliswe kuyo njengomsebenzi wokulibaziseka kwexesha. Ngokusekelwe kubunzulu besignali yesampulu kunye nomlinganiselo olindelekileyo wesignali-kwingxolo, ixabiso eliqhelekileyo leeskeni ezininzi yindlela esetyenziswa rhoqo kwimilinganiselo yexesha elisonjululweyo. Ngale nkqubo, kubalulekile ukuba isigaba esithe ngqo sibe nokuphindaphinda okuphezulu.
Ixesha leposi: Jan-27-2026