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MMWCAS-RF-EVM: cascade_MIMO_signalProcessing

Weiwei Shen
Prodigy 225 points
Part Number: MMWCAS-RF-EVM

Why reorder adcData ？

Is 1dFFT processing performed on the adcData that combines the imaginary part and the real part? Are the two formulas in the figure used for 1dFFT and 2dFFT processing?

What formula is used to obtain sig_integrate, and what does it represent?

  • 0
    TI__Guru*** 147994 points

    Hi,

    1) The format of the raw data  is provided in C:\ti\mmwave_studio_02_01_01_00\docs\mmwave_studio_user_guide.pdf, section 24.6. As you can see the format of the raw data is interleaved. That's why the date needs to be re-ordered before running the 1D FFT

    2) Yes, the 1d and 2d FFT are performed on complex adcData for each Rx

    3) This algorithm uses a range-doppler heatmap(). to create this heatmap the following steps are performed

    • compute power of the Doppler FFT
    • Sum accross Rx values
    • Compute the value in db (take log)

    Thank you

    Cesar

  • 0 in reply to Cesar
    Prodigy 225 points

    Hi,

    Why is my display result like this? Range/azimuth heat map and 3D point cloud are not displayed. I output length(angleEst), this value is 0.

  • +1 in reply to Weiwei Shen
    TI__Guru*** 147994 points

    Hi,

    Could you please double check that you followed the instructions in

    C:\ti\mmwave_studio_02_01_01_00\docs\mmwave_studio_cascade_user_guide.pdf

    You should be able to get similar results when you run the oob demo

    thank you

    Cesar