mmWave for Golf Swing Speed and ball distance

Mastermind 8519 points

Other Parts Discussed in Thread: IWR6843, IWR1642BOOST

Hi TI

A customer wants to develop a gold swing speed measuring instrument using mmWave Radar.

Could you please recommend an apropriate device for golf swing speed measurement?

If proper solution is available which can be a baseline, Also let me know the demo link as well as the device part.

The followings are available products from Maket

Thanks.

Regards,

Jack

over 4 years ago

0 Ishita Kochar over 4 years ago

TI__Mastermind 31680 points

Hello Jack,

Thanks for your query.

I'm not sure if mmWave Radars is suitable for these kind of applications. Suitable measurements will have to be performed to analyze this possible usecase.

I will forward your query to our Industrial team for their expert guidance in this matter. Please expect a response within two days.

Thankyou for your patience.

Regards,

Ishita

+1 zigang Yang over 4 years ago in reply to Ishita Kochar

TI__Mastermind 38295 points

Hi, Jack:

FMCW radar can detect range and Velocity at the same time. Depend on your RF frequency regulation, you can choose 60G product or 77GHz product. If there is no regulation, you can choose 60GHz product. But there is a limit of non-ambiguity max velocity for each designed chirp. Velocity higher than this value will be alias back. That is why it is called non-ambiguous max velocity. The max non-ambiguous velocity is provided in equation (4) inside https://www.ti.com/lit/an/swra553a/swra553a.pdf. You can design a chirp with very short chirp duration to achieve higher non-ambiguous max velocity. There are more technique that you can extend this max velocity, check the thread below: https://e2e.ti.com/support/sensors-group/sensors/f/sensors-forum/1005627/iwr1642boost-max-unambiguous-detectable-velocity-upto-300-km-h

For understand the basic radar technology, you can check the introduction training series:

https://training.ti.com/intro-mmwave-sensing-fmcw-radars-module-1-range-estimation?context=1128486-1139153-1128542

https://training.ti.com/intro-mmwave-sensing-fmcw-radars-module-3-velocity-estimation?context=1128486-1139153-1128544

Best,

Zigang

0 JK over 4 years ago in reply to zigang Yang

Mastermind 8519 points

Hi Zigang

Thank you for your kind clarification.

0 JK over 4 years ago in reply to JK

Mastermind 8519 points

Hi Zigang

Can you please recommend the appropriate EVM board too?
I am not sure if IWR6843 ISK, IWR6843 ODS and IWR1642BOOST boards are suitble for the application evaluation since boards have different FOV and Angle Resolutions and Distance.

Regards,
Jack

+1 zigang Yang over 4 years ago in reply to JK

TI__Mastermind 38295 points

Hi, Jack:

As you said, different EVM has different FOV and antenna gain. Depends on your application, if you do not need to cover a very wide angle in both azimuth and elevation, then ISK antenna is a good choice because it has a higher antenna gain.

Best,

Zigang

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mmWave for Golf Swing Speed and ball distance