This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

AWR1843AOP: Max velocity and extended max velocity

Part Number: AWR1843AOP

Hello E2E,

What is the difference between max velocity and extended max velocity? and how to configure extended maximum velocity in ( .cfg ) and visualize it in the demo visualizer?

Regards,
Carlo

  • Hi,

    We use the term "unambiguous velocity" for the velocity that is computed based on the radar frame parameters.

    Please see this training that explains how this velocity is computed

    https://training.ti.com/intro-mmwave-sensing-fmcw-radars-module-3-velocity-estimation

    As shown in this video, there is a max limit for the unambiguous velocity.

    There are different techniques to extend the unambiguous velocity.

    The mmWave SDK uses a technique to extend the velocity to 2x

    This is enabled by the command "extendedMaxVelocity"

    Please see this example:

    C:\ti\mmwave_sdk_03_05_00_04\packages\ti\demo\xwr18xx\mmw\profiles\profile_2d.cfg

    Thank you

    Cesar

  • Hello Cesar,

    Our customer check this profile C:\ti\mmwave_sdk_03_05_00_04\packages\ti\demo\xwr18xx\mmw\profiles\profile_2d.cfg, however the extendedmaxvelocity command is disabled
    "extendedMaxVelocity -1 0 "
    How they should consider this order? if they enable this command as follows
    extendedMaxVelocity -1 1 nothing happens.

    Regards,
    Carlo

  • Hi,

    For

    C:\ti\mmwave_sdk_03_05_00_04\packages\ti\demo\xwr18xx\mmw\profiles\profile_2d.cfg

    % Velocity Maximum  m/s                               10.59
    % Extended Maximum Velocity m/s                       21.17

    In order to observe the effect of " extendedMaxVelocity -1 1" with profile_2d.cfg configuration one would need to observe an object that has velocity > 10.59 m/s.

    The value of the velocity should be observed in the visualizer

    Thank you

    Cesar