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Calibration for indoor positioning

Hi

I am using nrf52840 for indoor positioning application based on RSSI. I was wondering if somebody has a tip how to calibrate the nodes before doing the experiment.

  • What's your position accuracy requirement? Triangulation via RSSI is known to be pretty coarse. You'll also encounter multipath issues and need to handle orientation issues if using a chip antenna. If your environment is mostly static and confined to a specific room / building and you accurate positioning, perhaps you could pre-record RSSI values for each position your object could be in the area. Then try to figure out the position via correlating the current RSSI with those pre-recorded?

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