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postuloca:bayesian

The figures in the following show the mass probability density of the localizzation error, when the bayesian approach is used. This method is described in the pape Savazzi & all; “Radio Imaging by Cooperative Wireless Network: Localizzation Algorithms and Experiments”; IEEE Int. Conf. WCNC 2012.

Scenario C40

In the following table, the Localizzation Error is misured by the bayesian approach by the a-posteriori probability density, based on a gaussian model. The results in the the first row of the table are about the schenario in which we assume that also the cells in the middle in the room, where the sensors are placed, can be crossed. The results in the the second row show the result about the scenario where we assume that the cells can not be crossed.

Scenario Parameters Anchor positions Error Distribution Metrics Notes and video
C 40 area: 6.4 X 4.5 [m]
anchors: 25
speed: 0.5[step/s]
channels: 1
origin: WnLab
RMSE: 0.867 [m]
75th pc: 0.881 [m]
90th pc: 1.225 [m]
Error distribution in [0.8, 1] m.
c40_25sen_1p_1sec.avi
RMSE: 0.77 [m]
75th pc: 0.904 [m]
90th pc: 1.1 [m]
Error distribution in [0.5, 0.75] m.
c40_25sen_1p_1sec.avi

Scenario Pat_2

In the following table, the Localizzation Error is misured by the bayesian approach by the a-posteriori probability density, based on a gaussian model.

Scenario Parameters Anchor positions Error Distribution Metrics Notes and video
Pat_2 area: 6.5 X 4.5 [m]
anchors: 28
speed: 1[step/s]
channels: 1
origin: SPAN Lab
RMSE: 3.88 [m]
75th pc: 4.700 [m]
90th pc: 5.800 [m]
Error distribution in [1.2, 5.5] m.
pat_2_28sen_1p_1sec.avi
postuloca/bayesian.txt · Last modified: 2013-04-24 10:20 by pietro