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AWR2243BOOST: Inquiry on Column Selection for Range-Azimuth and Range-Elevation Processing in AWR2243

Ramin
Prodigy 130 points
Part Number: AWR2243BOOST
Other Parts Discussed in Thread: AWR2243,

Tool/software:

Dear E2E Team, 

We are currently testing the AWR2243 device using the mmWaveLink_SFlash_FW_Example. Based on its default configuration, it uses two enabled transmitting antennas (txEnable = 1 and txEnable = 2) to collect 8 columns of data, which are then used to generate the Range-Azimuth map.

We have modified both the related C code (firmware) and the mmwaveConfiguration file to enable the third transmitting antenna (txEnable = 4), allowing us to collect additional data for generating a Range-Elevation map as well.

In this case, we now have 12 columns of data. However, I would like to clarify:

  • Which 8 columns among the 12 correspond to the Range-Azimuth map?
  • And which columns should be used for generating the Range-Elevation map?

Thank you in advance for your assistance.

  • 0
    TI__Intellectual 2502 points

    Hi Ramin,

    The mapping depends on the physical antenna configuration on the EVM. In the case of AWR2243BOOST:

    Since TX1 and TX3 are at the same height, their corresponding columns should be used for the range-azimuth map:

    [TX1-RX1, TX1-RX2, TX1-RX3, TX1-RX4, TX3-RX1, TX3-RX2, TX3-RX3, TX3-RX4]

    Since TX2 is λ/2 higher, it can be used with TX1 for the range-elevation map.

    [TX1-RX1, TX1-RX2, TX1-RX3, TX1-RX4, TX2-RX1, TX2-RX2, TX2-RX3, TX2-RX4]

    Thank you,

    Jin

  • 0 in reply to Jin Lee
    Prodigy 130 points

    Hello Jin, 

    Thank you for your response. I am aware of the antenna positions and the photo you shared with me. Regarding the part you mentioned:

    "Since TX1 and TX3 are at the same height, their corresponding columns should be used for the range-azimuth map:
    [TX1-RX1, TX1-RX2, TX1-RX3, TX1-RX4, TX3-RX1, TX3-RX2, TX3-RX3, TX3-RX4]"

    My question is: which columns correspond to the 8 virtual positions you mentioned? For example, are they columns 1–4 and 5–8, or columns 1–4 and 9–12?

    Thank you very much for your time and assistance.

    Best regards,

    Ramin

  • 0 in reply to Ramin
    TI__Intellectual 2502 points

    Hi Ramin,

    TX1-* maps to columns 1-4, TX2-* to 5-8, and TX3-* to 9-12. 

    Range azimuth should use 1-4 and 9-12, while range elevation should use 1-4 and 5-8.

    Thank you,

    Jin

  • 0 in reply to Jin Lee
    Prodigy 130 points

    Hello, 

    Your suggestion seems reasonable, but what confuses me is the chirp configuration setup in mmwaveconfig.txt used to configure mmwavelink_sflash_example.exe.

    For the azimuth range-angle map, the configuration uses txEnable=1 (001) and txEnable=2 (010), and for the elevation range-angle map, an additional chirp is added with txEnable=4 (100).

    As you mentioned, Tx1 and Tx3 are used for the azimuth range-angle map. In that case, it seems that Tx3 should correspond to txEnable=2, but I couldn't find any reference confirming this, which is why I am a bit confused.

    I would appreciate any clarification you can provide.

    Thank you!

  • 0 in reply to Ramin
    TI__Intellectual 2502 points

    Hi Ramin,

    Could you clarify what you are using the calculate the azimuth/elevation maps? Is it a custom script or from the Studio pacakage?

    Thank you,

    Jin

  • 0 in reply to Jin Lee
    Prodigy 130 points

    Hi, 

    It is a custom setup. I followed the explanation provided in the link below for the configuration.

    www.ti2k.com/164140.html

  • +1 in reply to Ramin
    TI__Intellectual 2502 points

    Hi Ramin,

    "For the azimuth range-angle map, the configuration uses txEnable=1 (001) and txEnable=2 (010), and for the elevation range-angle map, an additional chirp is added with txEnable=4 (100)."

    I was unable to find the script where TX1 and TX2 are used for the azimuth range-angle map in the link. To clarify, TX2 (txEnable=2) should be used for elevation measurement. The default mmwaveconfig.txt for the mmwavelink_sflash_example uses TX1 and TX2 for elevation (txEnable=1 and txEnable=2, respectively). For range, TX1 and TX3 should be used (txEnable=1 and txEnable=4, respectively).

    Thank you,

    Jin

  • 0 in reply to Jin Lee
    Prodigy 130 points

    Hi Jin, 

    Thank you for your clarification.