Dab tsi yog cov yam ntxwv ntawm cov lim dej

Cov yam ntxwv teb zaus: Lub luag haujlwm tseem ceeb ntawm lub lim dej yog ua cov kev xaiv zaus ntawm cov cim, yog li nws cov lus teb zaus yog qhov tseem ceeb. Cov yam ntxwv ntawm cov lus teb zaus piav qhia cov lus teb ntawm lub lim rau cov cim ntawm ntau zaus, nrog rau cov tsis xws li passband, stopband, thiab cutoff zaus.
Passband thiab stopband attenuation: passband thiab stopband attenuation yog cov cim tseem ceeb ntawm lub lim, sawv cev rau qib ntawm attenuation ntawm cov teeb liab nyob rau hauv passband thiab stopband ntawm lim. Feem ntau hais lus, cov ntxaij lim dej nrog me me passband attenuation thiab loj stopband attenuation muaj kev ua tau zoo dua.
Theem teb cov yam ntxwv: Thaum lub sij hawm ua cov lim, cov theem ntawm lub teeb liab kuj yuav hloov. Yog li ntawd, cov theem teb cov yam ntxwv ntawm lub lim kuj yog ib qho tseem ceeb parameter. Cov theem teb cov yam ntxwv ntawm cov ntxaij lim dej tuaj yeem cuam tshuam rau lub sij hawm-sau cov yam ntxwv ntawm cov teeb liab, yog li rau qee yam kev siv, nws yog ib qho tsim nyog los xaiv cov ntxaij lim dej uas muaj cov yam ntxwv zoo hauv theem.
Kev xaiv kev ua tau zoo: Lub luag haujlwm tseem ceeb ntawm lub lim yog xaiv dhau los yog txwv cov cim ntawm cov zaus tshwj xeeb, yog li kev xaiv kev ua haujlwm ntawm lub lim yog ib qho ntawm nws cov yam ntxwv tseem ceeb tshaj plaws. Kev xaiv kev ua tau zoo suav nrog cov tsis xws li passband bandwidth, nres bandwidth, thiab txiav tawm zaus, uas txiav txim siab qhov kev xaiv zaus ntawm lub lim.
Stability: Qhov kev ruaj ntseg ntawm lub lim yog hais txog seb nws cov zis puas ruaj khov nyob rau hauv ntau yam kev ua haujlwm. Stability yog ib qho teeb meem tseem ceeb hauv kev tsim cov lim dej, nrog rau kev ruaj ntseg thiab kev cia siab ntawm qhov system.
Tus nqi thiab ntim: Tus nqi thiab ntim ntawm cov ntxaij lim dej kuj tseem ceeb rau kev txiav txim siab thaum tsim. Tus nqi thiab ntim ntawm cov ntxaij lim dej nce ntxiv nrog kev txhim kho kev ua tau zoo, yog li qhov sib npaug yuav tsum raug ntaus ntawm kev ua tau zoo, nqi, thiab ntim.
Hauv cov ntsiab lus, cov ntxaij lim dej muaj cov yam ntxwv xws li cov lus teb zaus, passband thiab nres attenuation, theem teb, xaiv, stability, nqi, thiab loj. Thaum tsim cov ntxaij lim dej, nws yog ib qho tsim nyog yuav tsum xav txog cov yam ntxwv no ua tiav raws li daim ntawv thov yuav tsum tau ua thiab cov xwm txheej tiag tiag, thiab xaiv cov lim lim uas tsim nyog thiab tsis muaj.