The insertion of ISAR targets into pre-existing SAR scenes

For the training of automatic target recognition algorithms, and of scene understanding in image intelligence, it is important to have the largest possible data base. This can be achieved by inserting targets that were measured in a tower/turntable configuration, into pre-existing SAR scenes. The blending has to be performed in exactly that stage of the SAR processing chain that produces a result corresponding to that as if the target had been present in the scene during the SAR overflight.