A GLOBAL SCATTERING CENTER REPRESENTATION OF COMPLEX TARGETS USING THE SHOOTING AND BOUNCING RAY TECHNIQUE

We present a methodology to extract a global scattering center model a complex target, Using the shooting and bouncing ragi technique, we fi rst extract the three-dimensional (3D) scattering center representatio ns of the target at various aspect angles. Next the correspondence bet ween scattering centers across angles are established by utilizing 3-D location information. Tile data are grouped based on 3-D scattering c enter locations and are organized in the form of angular visibility ma ps, Such data organization gives good insights into target physics and feature stability. Furthermore, we define a stability measure to quan titatively rank order the scattering enters based on their angular sta bility. Finally, we demonstrate tile usefulness of such stable feature s by carrying out a five-target template-based matching experiment to estimate the angular pose of an unknown target.