Resolution Enhancement of Ultrasonic B-Scan Images by Deconvolution

Incident wave amplitude. Legendre polynomial of order m and argument x. Total power loss per unit volume. Particle velocity (vector). Particle velocity (complex representation). Normal component of particle velocity (complex representation). mth complex weighting amplitude for both the cylindrical and spherical cases. Characteristic acoustic impedance. Characteristic acoustic impedance of media 1 and 2, respectively. Ratio of 2, to Z2. Absorption coefficient. Absorption coefficient in the object interior. Bulk viscosity coefficient. Elasticity in media 1 and 2, respectively. Acoustic wavelength in the object interior. Shear viscosity coefficient. Medium density. Density in media 1 and 2 , respectively. Angular frequency. The del operator.