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IWR1443BOOST: log Mag Range Profile structure in high accuracy demo

Prodigy 55 points

Replies: 4

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Part Number: IWR1443BOOST

Hi,

i am extracting data frame from IWR1443BOOST by tera term via data port, according to the ``mmw Demo Data Structure_8_16.pdf``.

And I have 3 problems reading the raw data.

1. Is the data structure of  in high accuracy demo same as that of mmw Demo ?

2. I extracted the ``log Mag Range Profile`` from raw data, but the result is different from the `log Mag Range Profile`` that is exhibited on high accuracy demo visualizer.

Is there any post processing on the raw ``log Mag Range Profile`` ? 

3. If ``log Mag Range Profile``  is a fft range, whether the zoom-fft is running via java of  high accuracy demo visualizer?

Thank you.

  • Hi,

    The output data format is slightly different. I attached the file here for your information. DataStructure_table_higAccuLab.pdf

    The zoon-in fft is always run by HWA. The value showing the highest peak distance is obtained from zoom-in fft and passed to visualizer in the "Detected Objects" section in the data. What's plotted in the visualizer is the 1D coarse fft output.

    Regards,

    Michelle

  • In reply to Michelle Liu:

    Thank you for your reply.
    I have 2 last questions.

    1. I though the fft-range of IWR1443 is a complex 1D-coarse fft output in high accuracy demo.
    Is it correct?

    2. How does IWR1443 organize the 1D coarse fft output.
    For example, if 1024 fft is made, the length of 1D coarse fft output should be 2048,because of real parts and image parts.
    What is the order of real parts and image parts? one real part followed by one image part? Or Real parts take the first half, and Image parts take the last half.

    Thank you very much.
  • In reply to user5178559:

    Yes to 1.
    For 2, depends how to export the data, as 32 bits or 16 bits. How the data is placed in the memory can be got from the hardware accelerator user guide: www.ti.com/.../swru526

    Regards,
    Michelle
  • In reply to Michelle Liu:

    Hi, Michelle

    Thank you so much.
    My problems have been solved, according to your reply.

    Have a nice day.

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