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IWR1642BOOST: Range profile of demo visualizer

Nobuyoshi Arai44
Expert 2575 points
Part Number: IWR1642BOOST

Hello TI Expert,

 

I have a question about the demo visualizer of IWR1642BOOST/1443BOOST.

Regarding the Range Profile, it looks X-axis is showing Range (meters) but I do not know what the Y-axis is meaning.

Would you please explain what value is indicated by Y-axis?

 

Thank you very much for your help.

Best Regards,

Nobu Arai

  • 0
    TI__Guru 58035 points
    Hello Nobu Arai,
    The Y axis indicates the relative strength of the received signal from each of the objects at different distances. Larger the value , larger the signal amplitude received back.

    Regards,
    Vivek
  • 0 in reply to Vivek Dham
    Expert 2575 points
    Hello Vivek-san,

    Thank you for the answer.
    I understand that the Y axis means the signal strength. But it would be helpful if you can tell us more detailed information about it.
    For example, we would like to know what is the unit of measured value or how can it be calculated from the measured value.

    Thank you very much for your help.

    Best Regards,
    Nobu Arai
  • 0 in reply to Nobuyoshi Arai44
    TI__Guru 58035 points
    Hello Nobu Arai San,
    The absolute value is not significant , its mostly the relative value that is got from that plot. For example if you are viewing the plot in log scale then difference of the peak amplitude and the noise amplitude provides the SNR in dB , and this information can be used for optimizing the detection algorithm threshold. If you look at the difference of two peaks you can know the difference in the strengths of two objects.
    The point is the delta is what is to be looked at , if the plot mode is put in log scale then the delta is in dB , if the plot mode in regular linear scale then the delta is linear amplitude.

    Regards,
    Vivek
  • 0 in reply to Vivek Dham
    Expert 2575 points
    Vivek-san,

    Thank you for the answer.
    I understood taht the Y-axis of Range profile is a rerative value to know the signal strength.

    Best REgards,
    Nobu Arai