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AWR2944EVM: Tone testing

ESWARAMOORTHY SUGAVANAM
Prodigy 140 points
Part Number: AWR2944EVM
Other Parts Discussed in Thread: AWR2944

Tool/software:

Hi,

I want to know whether, it is possible to test convert the FMCW wave of AWR2944 via chirps mode to toned pulse by cli or other configuration, there are ways to set the BW to be zero using the CLI options I hope or how can we generate a tone using this EVM, give us a procedural steps.

Regards,
Eswaramoorthy Sugavanam

  • 0
    TI__Mastermind 20370 points

    Hi Eswaramoorthy,

    Can you explain what do you mean by Toned pulse? If possible, can share a diagram?

    Regards,

    Samhitha

  • 0 in reply to Samhitha Bobba
    Prodigy 140 points

    Hi samhitha,

    and sorry for my reply just searching out for a feasible diagram comparison,

    currently, your system is transmitting a number of chirps within a specified bandwidth and power range. However, I would like to focus the signal transmission at a specific frequency, for example, at 77 GHz. The goal is to limit the transmission to only this frequency, ensuring that the signal is concentrated around this peak, rather than spreading across the entire bandwidth as seen in FMCW radar systems.

    If the FMCW radar can transmit a tone by zeroing out the frequency slope (in MHz/µs), effectively reducing the bandwidth to 0, this would allow for the transmission of a single-tone pulse at a designated frequency. I would like to understand if this approach is feasible and, if so, whether it would be possible to capture this tone pulse using mmWave Studio.



    Regards,
    Eswaramoorthy Sugavanam

  • 0 in reply to ESWARAMOORTHY SUGAVANAM
    TI__Mastermind 20370 points

    Hi Eswaramoorthy,

    Let me check with the team and get back to you by the end of the week.

    In the meantime, can you try using slope = 0 while configuring the profile?

    Regards,

    Samhitha

  • 0 in reply to Samhitha Bobba
    TI__Mastermind 20370 points

    Hi Eswaramoorthy,

    ESWARAMOORTHY SUGAVANAM said:
    If the FMCW radar can transmit a tone by zeroing out the frequency slope (in MHz/µs), effectively reducing the bandwidth to 0, this would allow for the transmission of a single-tone pulse at a designated frequency. I would like to understand if this approach is feasible and, if so, whether it would be possible to capture this tone pulse using mmWave Studio.

    You can use slope = 0, but this should be used only for debug purpose or for RF characterization. Note: Slope cannot be 0 in your final application.

    Regards,

    Samhitha