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AWR2243BOOST: Questions on how to generate 3d point clouds and elevation estimations

Yawen Liu
Prodigy 30 points
Part Number: AWR2243BOOST
Other Parts Discussed in Thread: AWR2243

Hi,

I am using the AWR2243/AWR2243 BOOST 4-chip cascade radar for some tests and I have successful processed the captures for range-azimuth and range-doppler visualizations. Then, I checked out this demo [https://www.youtube.com/watch?v=C49lhsiIrso&t=10s] and the TI guideline for signal processing with 4 chip cascade [/cfs-file/__key/communityserver-discussions-components-files/1023/signal_5F00_processsing_5F00_4chip_5F00_cascade.pdf], which have 3d point cloud results that require further processed based on elevation estimations. However, I have no clues to continue from there as the description is high-level. In my test, I used all master-slaves antenna arrays and 4-chip cascade, and I want to generate some 3d point cloud results just like the video demo. 

I have two hypothesis about how to implement this but I am not sure. Please correct me or point me to the correct method if there is an existing thread on this problem:

1. I can have some elevation resolution as the elevation of the TX ARRAY (TX1/2/3) of the master device have vertical displacement (0.5/1.5/1 lambda) such that I have to calculate the path difference due to this small distance shift for elevation estimation. I saw there is a comment in the guidebook saying 'the elevation angle resolution is equivalent to the resolution achieved with 7 antennas', but I am a bit confused about this. 

2. If 1 is true, the location (range-azimuth) of the elevation can be found based on the correlation between range profile and range-doppler profile. 

Please let me know if any hints. 

Thanks, 

  • 0
    TI__Guru*** 149044 points

    Hi,

    For the cascade kit we provide matlab scripts that process the raw data in the mmwave studio tool:

    C:\ti\mmwave_studio_03_00_00_14\mmWaveStudio\MatlabExamples

    Unfortunately the team that developed the scripts is no longer available for support. So our support team will not be able to answer detailed questions about these scripts

    thank you

    Cesar

  • 0 in reply to Cesar
    Prodigy 30 points

    Hi, Cesar

    Yes, I am aware of the MatlabExamples available there. but there is only scripts on range-azimuth and range-doppler as 2d results. My concerns are about the elevation estimations and 3d point cloud if there is any resource? 

    Thanks

  • 0 in reply to Yawen Liu
    TI__Guru*** 149044 points

    Hi,

    Unfortunately we don't have any other scripts available.

    Thank you

    Cesar