I am currently working on a project utilizing the nRF52840 DK and dongle to measure distances between devices. In the process, I am leveraging the nrf_dm application, which calculates MCPD distances using various methods such as high_precision, IFFT, phase_slope, RSSI_openspace, and best . I would like to gain a deeper understanding of the algorithms behind these methods: How does each of these techniques contribute to distance estimation? What underlying signal processing techniques or mathematical models are applied in these methods? Where can I find the corresponding implementation (source code or documentation) within the nrf_dm application's source files? Any references to technical documentation, source code locations, or related research materials would be greatly appreciated.

Inquiry on Algorithms Used in nrf_dm for Distance Measurement

I am currently working on a project utilizing the nRF52840 DK and dongle to measure distances between devices. In the process, I am leveraging the nrf_dm application, which calculates MCPD distances using various methods such as high_precision, IFFT, phase_slope, RSSI_openspace, and best.

I would like to gain a deeper understanding of the algorithms behind these methods:

How does each of these techniques contribute to distance estimation?
What underlying signal processing techniques or mathematical models are applied in these methods?
Where can I find the corresponding implementation (source code or documentation) within the nrf_dm application's source files?

Any references to technical documentation, source code locations, or related research materials would be greatly appreciated.

0 Elfving 4 months ago

Hi,

We have some documentations on this here, and this video presentation might explain it a bit more. Though unfortunately the sw itself is closed source, I can't get into exact way how the algorithms work.

REgards,

Elfving
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