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Original question:

IWR6843AOP: Golf Swing Analyzer with mmWave Radar

IWR6843AOP: Golf Swing Analysis System Development by IWR6843AOP

Jack Cha
Mastermind 8154 points
Part Number: IWR6843AOP
Other Parts Discussed in Thread: IWR6843, IWR1843

Hi Nathan and Radap Champ !

This was discontinued from the original. But there was an update about the experiment of customer who focused on.

The experiment basically involved extracting one position per chirp and measuring the velocity from the change in that position,
They believed that it was impossible to measure spins faster than 2000 rpm even if we maximized the period of the chirp.
Therefore, it seemed that we needed to be able to extract the Doppler frequency within a single chirp to be able to measure high speeds,
They did not find such a feature in the IWR6843.

If there is a way to measure high speed spins above 2000 gs using the 6843, or if there is a way to extract the Doppler Frequency within a Chirp, please reply.

Thanks.

Regards, 

Jack

  • 0
    Mastermind 8154 points

    Hi 

    The customer believes that the IWR6843 is mainly specialized as an FMCW to measure distance and has limited capability to measure speed.
    He thinks that it is not suitable for measuring the spin/speed of a golf ball.
    I was wondering if any of TI DSPs are suitable (specialized) for measuring Doppler frequencies for ball speed and spin measuremnt of golf ball.

    Thanks

    Regards, 

    Jack

  • 0 in reply to Jack Cha
    Mastermind 8154 points

    Hi

    A new customer is investigaing on this topic. The target product is based on Rapsodo' Radar Solutions. 

    https://rapsodo.com/pages/golf

    We'd like to know which Radar device could be applied for this one? 

    I see in the catalog that Dual Doppler Radar is applied, is it not possible with FMCW radar such like IWR6843 or IWR1843? 

    Regards, 

    Jack

  • 0 in reply to Jack Cha
    TI__Expert 8790 points

    Hi

    Thank you for your query. Please allow us a couple of days to respond

    Regards

  • 0 in reply to Abhishek Karkisaval
    TI__Mastermind 32330 points

    Hi Jack,

    It should be possible to measure the speed of the golf ball with the radar device. Are you measuring the golf ball? Or the swing of the golf club here?

    If they're just trying to measure the speed of the golf ball, then they could use the doppler velocity information combined with the range estimates over successive chirps to estimate velocity. This method makes sense to me.

    Best,

    Nate