Phase detection with nrF52

RE: Phase detection with nrF52

Bentleylust — Tue, 03 Jan 2017 16:12:16 GMT

Hello,

And how the I/Q components of the received raw BLE signal can be measured within nRF52 ? How can developer get such data?

RE: Phase detection with nrF52

Øyvind Karlsen — Fri, 08 Jul 2016 08:00:19 GMT

You would be receiving only 1/n of the time on each antenna with a switch, that is why you can get better performance out of one chip per antenna as you would be getting data all the time. This would make your predictions better.

RE: Phase detection with nrF52

michel — Fri, 08 Jul 2016 07:06:54 GMT

Hi Øyvind,

Thank you for your response. Does it means that two nRF only can manage n antennas, or do I need one nRF per antenna? I may have more than 4 antennas to manage.

Thx Michel

RE: Phase detection with nrF52

Øyvind Karlsen — Fri, 08 Jul 2016 06:56:31 GMT

Hi,

This should be possible, but can be a little tricky. To be able to do this you need some metric to distinguish the difference in link quality, for example the Packet Error Rate. This is not accessible in all application, eg. when you have burst transmissions this can be tricky, so you will have to evaluate you protocol carefully beforehand.

The absolute best would be to use two nRF52 so that you can duplex, this will add a lot to your BoM though.

Best regards,

Øyvind