bilinear是什么意思inear在线翻译读音例

双线性变换c语⾔实现,双线性变换（Bilineartransform）

双线性变换(Bilineartransform)

Thebilineartransform(alsoknownasTustin\'s

method)isusedindigitalsignalprocessingand

discrete-timecontroltheorytotransform

cont词典在线查询 inuous-timesystemrepresentationstodiscrete苏轼赤壁怀古 -timeandvice

ineartransformisaconformalmapping,oftenusedtoconverta

transferfunction

ofalinear,time-invariant(LTI)filterinthecontinuous-timedomain(oftencalledan

analogfilter)toa

transferfunction

ofalinear,shift-invariantfilterinthediscrete-timedomain(oftencalledadigitalfilteralthoughthereareanalog

filtersconstructedwithcharge-coupleddevicesthatare

discrete-timefilters).Itmapspositionsonthe

axis,

,inthe暮年的拼音 s-planetotheunit

circle,

,ilineartransformscanbe

usedtowarpthefrequencyresponseofanydiscrete-time

,toapproximatethehumanauditory\'snon-linear

frequencyresolution)andareimplementableinthediscretedomain

byreplacingasystem\'sunitdelays

withfirstorderall-passfilters.

Thetransformpreservesstabilityandmapseverypointofthefrequencyresponseofthecontinuous-time

filter,

toacorrespondingpointinthefrequencyresponseofthe

discrete-timefilter,

althoughtoasomewhat诗句 differentfrequency,asshowninthe

ansthatforeveryfeature

thatonesee读书励志名言 sinthefrequencyresponseoftheanalogfil蓝采和 ter,there

isacorrespondingfeature,withidenticalgainandphaseshift,in

thefrequencyresponseofthedigitalfilterbut,perhaps,ata

barelynoticeableatlow

fr筚路蓝缕怎么读音 eque唐德宗李适 nciesbutisquiteevidentatfrequenciesclosetothe

Nyquistfrequency.

Thebilineartransformisafirst-orderapproximationofthe

naturallogarithmfunctionthatisanexactmappingofthez-plane

eLaplacetransformisperformedona

discrete-timesignal(witheachelementofthediscrete-time

sequenceattachedtoacorrespondinglydelayedunitimpulse),theresultisprecisely

theZtransformofthe

discrete-timesequencewiththesubstitutionof

where

isthesampletime(thereciprocal

ofthesampling

frequency)vebilinear

approximationcanbesolvedfor

orasimilarapproximationfor

canbeperformed.

Theinverseofthismapping(anditsfirst-orderbilinear

approximation)is

Thebilineartransformessentiallyusesthisfirstorder

approximationandsubstitutesintothecontinuous-timetransfer

function,

Thatis

Thebilineartransformisaspecialcas简短正能量小故事及感悟 eofaconformalmapping,韩愈早春呈水部张十八员外 namely,theMbiustransformationdefinedas