channel sounding distance estimation

RE: channel sounding distance estimation

witc — Sat, 21 Jun 2025 06:56:59 GMT

I used the RAS example in SDK 3.0.1 and my results are:
ifft: 1.234041, phase_slope: 1.854832, rtt: 8.811189
(real distance is 0.8 m, indoor)

As users, can we only try to improve the result of each of these three methods by changing different parameters and testing? Is that what you mean? Or will there also be some improvements in the SDK libraries, so that we get better results even with the same parameters?

Can we expect some improvements in the next SDK version? For example, will there be a way to combine these three results into one?

Can we expect any improvement from Nordic in the future?

Thank you, Jan.

RE: channel sounding distance estimation

maxime@conduent — Thu, 27 Mar 2025 14:23:51 GMT

Thank you very much

Maxime

RE: channel sounding distance estimation

Simonr — Thu, 27 Mar 2025 09:52:37 GMT

I'm sorry, but the Channel sounding is still very much in experimental mode yet, and the ranging algorithms are very basic, so very accurate ranging can't be expected at this point. We will have better versions coming, but in the end the algorithm for ranging is up to you to improve as it will be outside of what we support in the SDK.

Best regards,

Simon