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IWR6843ISK: About cfarCfg CLI command

user6228344
Intellectual 470 points
Part Number: IWR6843ISK

Tool/software:

Hi,

As a simple operation check, point cloud data was collected.
As I looked at the collected data I had a question.

I collected data with CFAR thresholds of 15 and 35(cfarCfg range-direction setting).
CFAR threshold 15: snr value of about 12 to 30 is output
CFAR threshold 35: snr value of about 25 to 35 is output

I thought that snr value below the CFAR threshold would not be output, but under what conditions are they output?
What is the relationship between the CFAR threshold and the output snr value?

Best Regard,

Thanks

  • 0
    TI__Mastermind 20611 points

    Hello, 

    Can you let me know what application binary is loaded? Is it the Out of Box demo or some other example? 

    user6228344 said:
    I thought that snr value below the CFAR threshold would not be output, but under what conditions are they output?
    What is the relationship between the CFAR threshold and the output snr value?

    Your understanding should be correct here. Can you please try setting the threshold to the same value for both range and doppler directions if you have not already? This may be required.

    Best regards,

    Josh