• State
  • Locked Locked
  • Replies 4 replies
  • Subscribers 101 subscribers
  • Views 410 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

adaptive filter with IIR

david azoulay
Prodigy 30 points

hi

i new in the DSP world, i have an assignment  to find  a code of adaptive filter with IIR for DSP C64x ..

i told that is lots of codes like this on the web but i didnt findwhere i can find this code ?

 

 

  • 0
    TI__Guru** 114420 points

    There is an optimized adaptive filter function in the C64x+ DSPLIB with the name DSP_firlms2, you can download it from here:

    http://www.ti.com/tool/sprc265

    Rahul

  • 0 in reply to Rahul Prabhu
    Prodigy 30 points

    hi rahul

    i saw the DSP_firlms2 C file, but im looking a IIR adaptive filter ( this folder contain a FIR filter)

    thia is what i need to design (adaptive IIR filter)

    thanks for the help

  • 0 in reply to david azoulay
    TI__Guru** 114420 points

    There is no TI provided C64x+ DSP library that I am aware of that provides optimized C code for this functionality but you could refer to any natural C code for Adaptive IIR filter and cross compile it for the C6000 DSP. Please refer to natural C codes that are published in resources like ebooks for other TMS320 processors. One such resource that I know of is Digital Signal processing Laboratory experiments using C and TMS320 Cx processors.

    Regards,

    Rahul

  • 0 in reply to Rahul Prabhu
    Prodigy 30 points

    thanks for thr help rahul

    Finally I decided to implement adaptive filter with FIR (LMS) ,I built my code based on a adaptive filter lms code from c64xx Library.

    i attached my code...

    I put a music signl at the entrance X and add to X sine signal (noise-frequency 1Khz), D is the desired signal (the music without the noise),E-is the error, Y is the out put.


    What I expected to get is a 1Khz on E(after a time) and the music on Y.

    but im having a problem...what i get is a random nois(not what i added) on Y and a music with a noise(1Khz) on E...


    how can i fix it???


    2313.code.rar