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. Author manuscript; available in PMC: 2012 Jun 27.
Published in final edited form as: J Acoust Soc Am. 2003 Aug;114(2):1120–1131. doi: 10.1121/1.1589754

FIG. 6.

FIG. 6

Plots of estimated head aim at different points within the space enclosed by the array (small black arrows) with a polar plot of the beam intensity profile (bold pattern) overlaid at the center. The direction the beam is pointing in corresponds to the peak of the profile. Plots A to E demonstrate that errors in computing headaim grow large only when the source is close to the edge of the array (around 1 m). F demonstrates that if the beam is directed out of the space enclosed by the array estimates become biased even near the center of the array. The x and y axes tick marks are in meters.