Table 2.

Expected error ϵ_θ (presented as mean ± SD) estimated globally for all propagation direction maps performed with noisy b-EGMs with respect to clean map.

ϵθ (deg) without || with b-EGMs alignment
Map type	Cliques	σn = 3μV	σn = 6μV	σn = 14μV
θo	□	0.00 ± 0.18	−0.01 ± 0.32	−0.01 ± 0.72
	△	−0.02 ± 2.86	−0.03 ± 3.74	−0.03 ± 5.10
θo-m	□	0.00 ± 0.19||−0.01 ± 0.41	0.01 ± 0.34||0 ± 0.64	0.01 ± 0.72||0.03 ± 1.24
	△	0.02 ± 2.76||0 ± 0.52	0.02 ± 3.58||0 ± 0.76	0.08 ± 4.81||0.01 ± 1.65
Map type	Cliques	σn = 28μV	σn = 42μV	σn = 55μV
θo	□	0.00 ± 1.38	0.00 ± 2.02	0.00 ± 2.63
	△	−0.05 ± 6.77	0.02 ± 8.14	0.02 ± 9.33
θo-m	□	0.02 ± 1.35||0.05 ± 2.50	0.01 ± 1.99||0.09 ± 3.86	0.04 ± 2.60||0.22 ± 5.51
	△	0.12 ± 6.31||0.03 ± 3.33	0.17 ± 7.54||0.07 ± 5.24	0.20 ± 8.75||0.17 ± 7.45