TABLE II.

Description of presented variables.

Variable	Description
$R[m]$	Measured spatial coherence
$R_S[m]$	Theoretical noise-free spatial coherence
$R_{S+\chi }[m]$	$R_S[m]$ with incoherent noise
$R_{S+\chi +A}[m]$	$R_S[m]$ with incoherent noise and aberration
SNRχ	SNR due to incoherent noise
Γ	Aberrator spatial autocorrelation FWHM
$\upsilon$	Aberrator rms as fraction of wavelength
η	Aberrator rms in time
C0	Native contrast
C	Contrast in terms of signal intensity
CdB	Contrast in dB
G	Beamformer gain
GA	Aberration-specific beamformer gain
Closs,χ	Contrast loss due to incoherent noise
Closs,A	Contrast loss due to aberration