I use OpenRTLS hardware and firmware which uses the DW1000 IC.
I have one tag and three anchors, within a distance of some 6 m.
See the figure below, which shows 100 measurements without (left)
and with movement (right), for the three anchors.
When all four do not move I get three tag-anchor distances with a
std of about 2-4 cm, which is good (left). However, as soon as I move
the tag the distances are heavily disturbed. The peak-peak deviation is
up to 3 m (right).
The disturbances decrease with time, most often returning to the
desired situation of the left figure. However, the time to return might
be shorter or longer than the time the tag moves.
Any idea of what is going on here?
[color=#111111][size=small][font=Tahoma,Verdana,Arial,Sans-Serif][attachment=124][/font][/size][/color]