ABSTRACT
Figure 7.8. Reconstruction of a three›leaf rose: solid line, exact boundary; dashed line, reconstructed boundary; 1, a = 2λ, 2, a = 4λ, 3, a = 6λ
In this section we expand some results of the previous sections to the 3D case. Let there be provided a circular irradiation by high›frequency harmonic waves, for arbitrary angle of incidence, with respect to an obstacle detected in an acoustic medium, under a scanning around the obstacle (S denotes the closed boundary shape of the obstacle). Such an opportunity can be provided in practice, for instance, under immersion scanning of an elastic body placed into a liquid.
