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IWR6843ISK: the detection distance is short when the object is static

sir li
Intellectual 340 points
Part Number: IWR6843ISK

Thanks for your supports,

>test 1, the IWR6843ISK is assembled above 1.2 meter from gound; the ange is 0 degreen between wall and IWR6843ISK baord; 

downlaod the lab21 profile "area_scanner_68xx_lab.bin", in the file "mmw_area_scanner_68xx.cfg" , off the clutterRemoval,  "clutterRemoval -1 0" , then tes the object; if the objects is moving, the detection distance is more than 10 meter; but if the objects is statics, the maximal detection distance is about 2 meter; Could you please help us how to increase the dectection distance for static objects?

>test 2, the IWR6843ISK is assembled above 1.2 meter from gound; the ange is 0 degreen between wall and IWR6843ISK baord; 

>downlaod the lab0017_mmwave_sdk_68xx profile "xwr68xx_mmw_demo.bin",  then tes the object; if the objects is moving, the detection distance is more than 10 meter; but if the objects is statics, the maximal detection distance is about 2 meter; Could you please help us how to increase the dectection distance for static objects?

>test 3, the IWR6843ISK is assembled above 1.2 meter from gound; the ange is up 10 degreen between wall and IWR6843ISK baord; 

downlaod the lab21 profile "area_scanner_68xx_lab.bin", in the file "mmw_area_scanner_68xx.cfg" , off the clutterRemoval,  "clutterRemoval -1 0" , then tes the object; if the objects is moving, the detection distance is more than 10 meter; but if the objects is statics, the maximal detection distance is about 2 meter; Could you please help us how to increase the dectection distance for static objects?

>test 4, the IWR6843ISK is assembled above 1.2 meter from gound; the ange is up 10 degreen between wall and IWR6843ISK baord; 

>downlaod the lab0017_mmwave_sdk_68xx profile "xwr68xx_mmw_demo.bin",  then tes the object; if the objects is moving, the detection distance is more than 10 meter; but if the objects is statics, the maximal detection distance is about 2 meter; Could you please help us how to increase the dectection distance for static objects?

  • Former Member
    0 Former Member

    Hello,

    Please start your evaluation using the mmWave SDK out of box demo and online demo visualizer. 

    The visualizer has a tool that enables you to adjust the sensitivity in real time.

    I would suggest that you setup the scene as you described above and then use the Real Time Tuning tools in the plots tab to adjust the thresholds until you can achieve the detections for the static object you prefer.

    I would suggest that you disable the peak grouping options initially so you can visualize more points.

    https://dev.ti.com/gallery/view/mmwave/mmWave_Demo_Visualizer/ver/3.1.0/

    http://www.ti.com/general/docs/lit/getliterature.tsp?baseLiteratureNumber=swru529&fileType=pdf

    Please refer to the user's guide section 3.9 Real-Time Tuning for more details on how to use this feature.

    Amanda

  • 0 in reply to Former Member
    Intellectual 340 points

    Dear Amanda,

    Thanks for yours supports,

    According to your suggestion,  "disable the peak grouping" and "adjust the sensitivity cfarCfg -1 0 0 8 4 4 0 171 0", when the objects is statics, the distance is about 5meters, but there will detect some inexistence objects, this inexistence objects is no exist in face,and the dopper is 0 m/s, the number of inexistence objects is less than 4 in a frame; could you please help us how to remove this inexistence objects.

    Question 1, After change "clutterRemoval -1 0", will detect one inexistenc object which dopper is about 0.83657; will appera one in about 5 seconds.could you please help us how to remove this inexistence objects.

    Qestion 2, "clutterRemoval -1 1" , use the default profile and config, IWR6843ISK is assembled on the car side. when the car is moving,

    will detect some inexistenc objects. could you please help us how to remove this inexistence objects.