• State Resolved
  • Locked Locked
  • Replies 7 replies
  • Subscribers 33 subscribers
  • Views 334 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.

AWRL6432: 2D capon demo

Liam
Prodigy 150 points
Part Number: AWRL6432

Tool/software:

Hi TI experts,
 

I am now using 6432 2D capon demo in radar tool box.
I want to output doppler value, but I notice it is not supported in this demo.

Is this calculable?

Regards
Liam

  • 0
    TI__Intellectual 1860 points

    Hi Liam,

    I have looped in our SW expert. Please allow us a day or so to provide the respond.

    Thanks and Regards,
    Sivaprasad

  • 0 in reply to Sivaprasad K L
    Prodigy 150 points

    Hi,

    Sure.

    Thanks,
    Liam

  • 0 in reply to Liam
    TI__Genius 13235 points

    Hi,

    We're looking into this now.

    Thanks,

    Clinton

  • 0
    TI__Mastermind 38235 points

    Hi, Liam:

    Since Capon2D chain uses minor mode, i.e., the chirps cross several frames will be processed together to detect the movement.  The minor mode increases the observation window and improves sensitivity.   However, all the chirps cross several frames do not have even space between them, that is why we did not estimate the Doppler information for minor mode.  

    Best,

    Zigang

  • 0 in reply to zigang Yang
    Prodigy 150 points

    Hi Zigang,

    Thanks for your reply.

    I know the doppler value will be in a rather low confidence. 
    From motion and detection demo, there is a dopplerIndexMatrix that includes the dopplerIdx, and we can estimate a doppler value even though it is unevenly sampled. 


    Is the dopplerIdx saved in HWA output from Capon2D chain?

    Regards
    Liam

  • +1 in reply to Liam
    TI__Mastermind 38235 points

    Hi, Liam:

    Unfortunately, the doppler peak is not calculated and saved for each range bin.   In the current code,

    If doppBinningEnabled == 1

       Doppler FFT is applied for each frame inside the following function:  doaProc_configHwa_prepCapon

    If doppBinningEnabled == 0

      There is no Doppler FFT applied. 

    You will have to modify the doaproc DPU, and particularly modify the function doaProc_configHwa_prepCapon to add the function you wanted.

    Best,

    Zigang

  • 0 in reply to zigang Yang
    Prodigy 150 points

    Hi, Zigang

    Thank you for your reply.

    Regards
    Liam