2017-09-24答复
/jj DLS6thorderlowpassbutterworthjjdls /
/jjdlsbilineartransformationwithprewarpingjjdls /
/jjdlssamplefrequency=100.0 hzjjdls /
/jj DLS标准表单jj DLS /
/jjdlsarithmeticprecision=4digitsjjdls /
/jjdls jjdls/
/jjdlspassbandfrequency=35.00 hzjjdls /
/jjdls jjdls/
/jjdlsjjdlsjjdlsjjdlsjjdlsjjdlsjjdlsjjdlsjjdlsjjdlsjjdlsjdlsjdlsjdlsjjdlsjdlsjjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdl jdlsjdlsjdlsjdlsjdlsjjdlsjjdlsjjdlsjjjdlsjjdlsjjdlsjjdlsjjdlsjjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjd jdlsjdlsjdlsjdlsjdlsjjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdlsjdls
/jjdls jjdls/
/jjdlsinputvariabledefinitions 3360 jj DLS /
/jjdls inputs: jjdls/
/jjdlsinvarfloattheinputtothefilterjjdls /
/jjdlsinitvarfloattheinitialvalueofthefilterjjdls /
/jjdlsseticint1toinitializethefiltertothevalueofinitvarjjdls /
/jjdls jjdls/
/jjdlsthereisnorequirementtoeverinitializethefilter.jj DLS /
/jjdlsthedefaultinitializationiszerowhenthefilterisfirstcalledjjdls /
floatdigfil(invar，initval，setic ) )。
float invar，initval； 输入集；
{，sumden； int i；
staticfloatdelay [7]={ 0.0，0.0，0.0，0.0，0.0，0.0 }；
静态浮动znum [7]={
. 1477、
. 8864、
2.216、
2.955、
2.216、
. 8864、
. 1477
(；
静态浮动zden [6]={
2.183e-02，
. 2099、
. 8779、
2.055、
2.91、
2.38
(；
if(setic==1) {
for(I=0； i=6； I ) delay[i]=.1058jjdlsinitval；
return initval；
}
else{
sumden=0.0；
sumnum=0.0；
for(I=0； i=5； I ) {
sumden =delay[i]jjdlszden[i]；
sumnum =delay[i]jjdlsznum[i]；
}
sumnum =delay[6]jjdlsznum[6]；
return sumnum；
}
}