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IWR6843: Surface speed measurement

David Leonard
Prodigy 10 points
Part Number: IWR6843

Hello,

I am investigating the use of the IWR6843 device for surface speed measurement of a relatively smooth surface as well as range measurement. These measurements can be separate. The surface speed relative the the radar is~1m/s.

I have 3 Questions:

  • Is there an application example (such as xWRLx432 True Ground Speed User Guide) that demonstrates the achievable sensitivity of surface speed measurement with this device?
  • To maximise the doppler measurement sensitivity, would there be advantage in configuring the device to operate in CW mode to measure doppler (assuming range was not needed), and does the demonstration software support this?
  • Is there a device that might be better suited (assuming save frequency band and similar gain)

Best regards,

David

  • 0
    TI__Mastermind 19520 points

    Hello David.

    David Leonard said:
    Is there an application example (such as xWRLx432 True Ground Speed User Guide) that demonstrates the achievable sensitivity of surface speed measurement with this device?

    If you download the toolbox, you will be able to access the source code and prebuilt binary for running true ground speed on the x432 devices.

    David Leonard said:
    To maximise the doppler measurement sensitivity, would there be advantage in configuring the device to operate in CW mode to measure doppler (assuming range was not needed), and does the demonstration software support this?

    The demo software does not use or support continuous wave mode, but even then I don't think it would provide any added benefit.  You can simply modify the configuration to improve the doppler resolution to meet your requirements.

    David Leonard said:
    Is there a device that might be better suited (assuming save frequency band and similar gain)

    Currently the x432 devices are the only devices supported for the true ground speed application.  However, if you develop your own application or port the x432 TGS processing to a 6843 demo, you could use the 6843/1843 as well.

    Sincerely,

    Santosh