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AWR1843AOPEVM: Is there any way to make a Azimuth-Doppler heatmap?

Soobin Huh
Prodigy 20 points
Part Number: AWR1843AOPEVM
Other Parts Discussed in Thread: MMWAVE-STUDIO, IWR6843AOP, AWR1843, DCA1000EVM

Hi, 

I'm really new to using radar. 

Nevetheless, thanks for the Ti video library and Ti Radar academy, I just understood about radar little bit.

I have an idea with using Azimuth-Doppler Heatmap, so I just want to visualize this to test my idea.

But, I can't find any post about this in E2E Forum, and no related content even on the paper. 

So, I wonder,

1. Is there any method to make Azimuth-Doppler Heatmap using ADC data with DCA1000

    or build my own application without using DCA1000?

2. If yes, Do I have to fix the range to a certain value when I make an Azimuth Doppler heatmap

    like azimuth static heatmap fixed the Doppler index to 0?

3. Can I make AD map in Ubuntu environment? (without using mmWave-Studio)

I'm worried that my question might look silly, but I'd appreciate it if you could understand.

Thanks,

Soobin.

  • 0
    TI__Expert 3665 points

    Hi Soobin, 

    Congratulations on acquiring your first radar.

    1. You can use the existing demos provided by TI in SDK mmwave_sdk_03_06_02_00-LTS (see section on Software development). I advise you to run out of box demo to familiarize yourself with how TI's demos run, the out of box demo can be found under packages\ti\demo\xwr18xx\mmw.

    Once you are done, please see the parameters under GUI monitor command under  Configuration (.cfg) File Format section under docs/mmwave_sdk_user_guide.pdf. You can access rangeAzimuthHeatMap, rangeAzimuthElevationHeatMap and rangeDopplerHeatMap by changing the configuration file.

    We do not provide a Azimuth-doppler heatmap but you can most certainly edit the code to plot one, Azimuth and Doppler are being computed already by the processing chain. You will need your create own visualizer to view it. 

  • 0 in reply to Zorah Ahmad
    TI__Expert 3665 points

    You can also capture the raw data using the DCA 1000 and create your own matlab script to compute Azimuth and Doppler heatmap

  • 0 in reply to Zorah Ahmad
    Prodigy 20 points

    Hello Zorah,

    Thanks for rapid and kind answer!

    I think you're probably recommending me to try the mmWave Demo Visualizer, but I've already done this. I can visualize the information (ex. Range profile, Range-Doppler heatmap, ..) by the Demo visualizer.

    I didn't know that .cfg file can access the output data, so I'll read the cfg file format section as you told me.

    It's still before I read it, but as far as I understand, I can modify the cfg file to get Azimuth and Doppler data in TLV format, and if I write the code to get it through UART and the code to plot the heatmap, I can visualize the Azimuth Doppler heatmap. Am I correct?

    Thank you again for your kind reply.

    Soobin.

  • 0 in reply to Zorah Ahmad
    Prodigy 20 points

    Hi Zorah, 

    After I read the Configuration File Format section in sdk_user_guide.pdf, I figure out that my understanding is completely wrong.

    I think AWR1843 can't access to rangeAzimuthElevationHeatmap. (Only for  IWR6843AOP I guess)

    So, If I don't use DCA1000EVM, I have to understand processing code in SDK, modify it to get Azimuth, Doppler data, and build it to make my own .bin file. And then make my own visualizer to make Azimuth-Doppler Heatmap. Am I right?

    Thanks,

    Soobin.

  • +1 in reply to Soobin Huh
    TI__Expert 3665 points

    Yes Soobin, you are correct. Out of curiosity for what application do you need Azimuth Doppler heatmap? Can you use range doppler heatmap instead?

  • 0 in reply to Zorah Ahmad
    Prodigy 20 points

    I want to check the Azimuth-Doppler heatmap because I want to get not only distance but also angle through the object's micro-Doppler effect.

     

  • 0 in reply to Soobin Huh
    TI__Expert 3665 points

    Thankyou for explaining