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IWR1443BOOST: Threshold values for vital signs detection

Deepu Kumar
Prodigy 205 points
Part Number: IWR1443BOOST

Hello,

I have been using IWR1443BOOST and wanted to replicate the vital signs lab following the latest vital sign lab guide(https://dev.ti.com/tirex/explore/node?node=A__APopVrbGviZJDyscKY19dQ__com.ti.mmwave_industrial_toolbox__VLyFKFf__LATEST).

I have a question regarding setting up the threshold value in "Impulsive noise removal" and "motion corrupted segment removal/Gain control."

  • What threshold values and interpolated values have TI taken for the development of the vital signs lab?
  • What user-defined threshold value has been taken by TI vital signs lab development team?

   

Apart from this question, I have other questions.

  • What is the m and a(m) indicated in impulsive noise removal?
  • is it a bin in the slow time axis >>> 
  •            

Regards

Deepu

  • 0
    TI__Genius 10730 points

    Hi Deepu,

    Thank you for reaching out on our e2e forums with this question. The subject matter expert on this topic is out until the new year so I do not have specifics but I can point you to our source code to learn more here. At mmwave_industrial_toolbox_4_12_1\labs\Vital_Signs\14xx_vital_signs\pjt you will find our source code for this project. This processing is done in main.c. 

    Thank you,

    Angie

  • 0 in reply to Angie Mitchell
    Prodigy 205 points

    Hi Angie,

    Thank you for the response. The subject expert is on a long leave. Doesn't TI have any other member who can respond?

    I have been reading code myself. Would it be fine for you to indicate the exact line of code for the above queries?

    Regards

    Deepu

  • 0 in reply to Deepu Kumar
    TI__Genius 10730 points

    Hi Deepu,

    You can look at line 608 for impulse noise removal and then look more specifically at the filter_RemoveImpulseNoise function which is called on line 615. 

    The variables for detecting motion corrupted segments can be found at 424 so I would trace where these are used.

    Thanks,

    Angie