filter iir

[vcastaldi]

Hi! Excuse me for language.

I must create an a filter iir in C that it clears the input signal.

Can you help me? Thank you very much.

[Graziano]

Hi!
   If you have advanced analysis library it is not really difficult.  Go to LabWindows menu,
  
          Library --> Advanced Analysis -->  Signal Processing --> IIR digital filters
 
   and explore the functions you have.

Anyway, if you are new to DSP and digital filters, be careful in using IIR filters: they have to be carefully designed and tested, and they can show unstable behaviour.

greetings

graziano

[Graziano]

If you want to implement the filter in C (I mean, without Advanced analysis library), you can refer to on-line book "Numerical Recipes in C"

                           http://www.library.cornell.edu/nr/cbookcpdf.html

  especially this chapter:    http://www.library.cornell.edu/nr/bookcpdf/c13-5.pdf

Bye!

graziano

[vcastaldi]

Thank you! I will see it. I hope it is efficient for me.

Grazie ancora - bye

[Graziano]

...magari il prossimo post lo scrivo in italiano!

Ciao, e buona giornata!

graziano

[vcastaldi]

🙂 Infatti, per questo ho scritto "grazie ancora", perchè avevo intuito dal nome che sei italiano.