FIG. 1.

Spatial coherence curves (a) and calculated beamformer gain (b) for manipulations of ideal speckle coherence (S) due to incoherent clutter (S+χ), aberration (S + A), and their combination (S+χ+A). Modeled aperture is a continuously defined linear array with a 2.2 cm active aperture width. Incoherent clutter is 0 dB relative to signal power. Aberration is defined as $\upsilon =0.1$ and Γ = 5 mm.