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CCS/AWR1843BOOST: How to select the value of the parameters rangeAssocThresh and velAssocThresh in the mrr demo

Rata Zhang
Expert 2840 points
Part Number: AWR1843BOOST

Tool/software: Code Composer Studio

Hi,

   In the mrr demo, there is a track association  function called isTargetWithinDataAssociationThresh, in this function three parameters are introduced  rangeAssocThresh,velAssocThresh and azimAssocThresh,In the demo ,the values are selected as follows:

    obj->trackerInstance.rangeAssocThresh   =   2.0f;            /* in meters. */
    obj->trackerInstance.velAssocThresh         =   2.0f;           /* in meters/sec. */
    obj->trackerInstance.azimAssocThresh      =   (5.0f/180.0f);   /* in sin(omega). */

Now there is a condition, there are several standing cars in the front  of the radar, which are close to each other less than 2m, as belows in the picture:

In this situation, the values of the three parameters is not suitable,in this  condition,how should I select the value of those parameters?

Is there any algorithm for the track association?Can you provide any  reference material for that?

Thanks,

Regards,

Rata

  • 0
    TI__Mastermind 22155 points

    Rata,

    Let me check with our algo expert and get back to you.

    Thanks,

    Raghu

  • 0
    TI__Expert 4720 points

    Hi Rata, 

    That is a difficult problem for the SRR demo, primarily because of the poor angular resolution, and poor range resolution of the SRR chirp design (~0.6 meters). 

    I'd recommend that you modify the SRR demo to have the USRR frame enabled (It has a resolution of ~0.04 meters). You can also modify the tracker to track the USRR targets (not present in USRR). This way stationary objects close to the car are tracked separately. 

    There is another (more advanced) tracker available in the  traffic monitoring lab in the industrial toolbox. You can try incorporating that into the SRR. The advantage of that tracker is that it will hold on to moving objects that become stationary.   

    Regards

    Anil

  • 0 in reply to Anil Mani
    Expert 2840 points

    Hi Anil,

      I have read the document  'Tracking radar targets with multiple reflection points ', In the document,there is a book 'Multi-Target Tracking with Radar Applications',I can not download this book form the internet,Can you provide this ebook for me?

    Thanks,

    Regards,

    Rata

  • 0 in reply to Rata Zhang
    TI__Expert 4720 points

    Hi Rata, 

    We don't have the ebook either. We have a hardcover version of the book. I think it should be available in most university libraries. 

    Regards

    Anil