Enhancing Performance of Magnetic Field Based Indoor Localization Using Magnetic Patterns from Multiple Smartphones

. 2020 May 9;20(9):2704. doi: 10.3390/s20092704

Algorithm 2 User Positioning Using Geomagnetic and Acceleration Data [14].
1:	for $i ⟵ t o 5$ do
2:	for $j ⟵ t o W$ do
3:	$D_{a} (j) ⟵ c a l c u l a t e D i s t a n c e (A_{w});$
4:	$S (j) ⟵ g e n e r a t e P a t t e r n (G_{w});$
5:	$P_{g} (j) ⟵ f i n d G e o m a g n e t i c P o s i t i o n (S (j));$
6:	end for
7:	$P_{c} ⟵ g e n e r a t e P o s i t i o n C a n d i d a t e s (P_{g}, D_{a});$
8:	$P_{i} ⟵ g e t P o s i t i o n (P_{c}, P_{g});$
9:	end for
10:	$P_{f} ⟵ f i n a l i z e P o s i t i o n (P, D_{a})$ ;