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AWR1843AOPEVM: Obstacle detection AoP demo: Max range for detection

Bevin C Burthold
Prodigy 80 points
Part Number: AWR1843AOPEVM
Other Parts Discussed in Thread: AWR1843AOP

Hi TI,

 

We have tried "Obstacle detection AoP" demo in AWR1843AOP EVM with changing the second last parameter of "cfarCfg" command after power cycling on each try.

As per "TI Resource Explorer": https://dev.ti.com/tirex/explore/node?node=AIUEeh94Uh9p2cFXozpVPg__AocYeEd__LATEST , the second last parameter of "cfarCfg" command is "Max range for detection".

 

Below are our observations

When we set the value(second last parameter of "cfarCfg" command) above 111, we are unable to view any tracking information in the visualizer for "Obstacle detection AoP" demo.

Even if we set the value as 111 in the second last parameter of "cfarCfg" command, we are able to detect objects only up to 5 meter.

-----------------------------------

?? Could you please let us know how can we set the maximum possible range(25 meter as per TI Resource Explorer documentation) for "Obstacle detection AoP" demo.

 

Thanks & Regards,

Bevin

  • 0
    TI__Genius 15046 points

    Hi Bevin,

    You should try reducing the rangeThresh parameter of the cfarCfg command (the 8th parameter, set to 350 by default). This would reduce the threshold that CFAR uses to categorize peaks in the detection matrix as objects.

    Regards,

    Aayush