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Showing 1 to 1 of 1 for “"Directional sonars"”.
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Acoustic scattering of spherical directional waves by smooth and statistically rough solid elastic cylinders
Realistic sonars radiate spherically spreading waves and have directivity. Therefore, they insonify a target over a finite number of Fresnel zones and span a continuum of oblique incident angles, even when the center of the beam is at normal incidence. These effects strongly influence both the …