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The two steps of the vector averaging method are shown next in Figures 8-12 and 8-13.
In the first plot, Figure 8-12, “Plot One - Vector Averaged Correction”, the components of the
vector average have been subtracted from the components of each measurement, shifting the
ellipse so that it is centered at the origin.
Figure 8-13: Plot One - Vector Averaged Correction
In the second plot, Figure 8-13, “Plot Two - Vector Averaged and Scaled”, the scale
factors have been determined and applied to the offset measurements. The corrected compass
measurements fall roughly on the unit circle. The raw measurements are shown for comparison.
(note the change of scale between the two plots.)
8-21