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AWR 1243

Mohan Sunderam
Intellectual 610 points

Hi team,

            We are currently working on the radar data that we obtained fro TI AWR 1243 board and we processed it to obtain the range and velocity by perfroming fft along the samples and chirps axes respectively (obtaining results similar to that of the mmWave studio Post processing). But we are stuck with obtaining the azimuth angle of the target through fft along the  4 channels axis. I just performed the fft and plotted it  against the azimuth angles but the results are strange. Can you explain how you have performed it in the mmWave post processing. Also how do you figure out the exact angular resolution of the radar device ?

Best regards,

Mohan

  • 0
    TI__Guru**** 153394 points

    Hi,

    The mmwave SDK demo documentation provides implementation details that can help you understand how to compute the angle.

    Please see for example following section.

    Data Path - Direction of Arrival FFT Calculation

    file:///C:/ti/mmwave_sdk_02_01_00_04/packages/ti/demo/xwr16xx/mmw/docs/doxygen/html/index.html

    Older releases of the SDK can be downloaded by using the link at the bottom of the page

    Beyond this, I would open this question to the support community

    thank you

    Cesar

    I also encourage you to take a look a the source code of the mmwave sdk demo

    Please see section " /* 3D-FFT (Azimuth FFT) */"

    C:\ti\mmwave_sdk_02_01_00_04\packages\ti\demo\xwr16xx\mmw\dss\dss_data_path.c

    Thank you

    Cesar