CC2640R2F: AoA Angle is not fixed in rtls_example.py

Yonghua Pan

Intellectual 1900 points

Part Number: CC2640R2F

Hi,

Customer has set up the demo as below:

They didn't move any board, but according to rtls_example.py, the angle is dynamic, between 19 and 33.

Please advise how to get the stable angle value in this demo. Thanks!

over 7 years ago

0 Marie H over 7 years ago

TI__Guru* 83901 points

Hi Yonghua,

What version of the demo are they running?

Can you make sure there are no big metal objects around where they are conducting the demo?

0 Yonghua Pan over 7 years ago in reply to Marie H

TI__Intellectual 1900 points

Hi, Marie,

They set up this demo based on SDK v3.20. And there is no big metal object since the engineer is in office which is an open air environment.

Regards,

Yonghua

0 Clément over 7 years ago in reply to Yonghua Pan

TI__Guru** 101570 points

Hi Yonghua Pan,

Sorry to say this but the test environment showed on the picture is the worst you can have! There is a lot reflective surfaces that will provoke multi-path and bad measures. A desk is definitely *not* a good environment for AoA.

If you can run the tests in an open environment (outside or in an anechoic chamber), you will probably get better results. The goal is to remove all the surfaces that could reflect the RF signals (such as metallic pieces, walls...) and cause multi-path.

I hope this will help,

Regards,

0 Yonghua Pan over 7 years ago in reply to Clément

TI__Intellectual 1900 points

Thanks for your prompt feedback! I'll discuss with customer about your recommendation.

0 Clément over 6 years ago in reply to Yonghua Pan

TI__Guru** 101570 points

Hi Yonghua Pan,

Do you have any new input regarding this case?

Thanks and regards,

0 Yonghua Pan over 6 years ago in reply to Clément

TI__Intellectual 1900 points

Hi, Clément,

So far I didn't get further customer's further input about this. Please let me close this post, if any further request, I'll create another one. Thanks!

Regards,

Yonghua

Bluetooth®︎

Bluetooth forum

CC2640R2F: AoA Angle is not fixed in rtls_example.py