Txoj kev tshawb nrhiav qhov yuam kev twg cuam tshuam nrog ntau tus lej? Kev piav qhia: Cyclic Redundancy Check (CRC) suav nrog kev txheeb xyuas qhov sib luagntau ntau. Nyob rau hauv cov ntaub ntawv sib xws ntawm CRC, 1-ntsis yog tsim los ntawm kev txheeb xyuas cov polynomial x + 1.
Nyob rau hauv txoj kev tshawb nrhiav qhov yuam kev twg muaj feem cuam tshuam nrog?
CRC yog cov txheej txheem tshawb nrhiav qhov yuam kev zoo heev. Qhov kev ua yuam kev muaj peev xwm ntawm CRC nyob ntawm qhov xaiv lub tshuab hluav taws xob polynomial. CRC muaj peev xwm txheeb xyuas txhua qhov yuam kev ib-ntsis.
Yuav ua li cas hauv qab no yog txoj kev tshawb nrhiav yuam kev?
Cov txheej txheem tshawb nrhiav yuam kev nrov tshaj plaws yog: Ib qho kev sib piv ib leeg . 2-dimensional parity check . Checksum.
Yuav ua li cas hauv qab no yog txoj kev tshawb nrhiav qhov yuam kev zoo tshaj plaws?
Txoj kev paub qhov yuam kev zoo tshaj plaws yog hu ua parity, qhov twg ib qho ntxiv me ntsis ntxiv rau txhua byte ntawm cov ntaub ntawv thiab muab tus nqi ntawm 1 lossis 0, feem ntau raws li seb puas muaj tus lej txawm lossis khib ntawm "1" khoom.
Yuav ua li cas yog 3 txoj kev tshawb nrhiav qhov yuam kev?
Kev Tshawb Fawb Txog Kev Ua Tsis Taus
Nws muaj peb lub tswv yim tseem ceeb txhawm rau txheeb xyuas qhov yuam kev hauv thav duab: Parity Check, Checksum thiab Cyclic Redundancy Check (CRC).
