On detection of shadowed targets in axisymmetric configurations

Objects in the shadow zone of a larger body are generally difficult to detect and identify. In some scenarios, however, the number of multiple scatterers can be deduced. We use an accurate solver to examine the wide-band response of some symmetric configurations of bodies lying in the shadow of the illuminated front body. The Q-factor of the configuration as well as that of the individual scatterers is an important factor in determining the number of scatterers.