1. A method comprising: determining in real-time a radar cross section (RCS) of an object, the determining comprising: defining a shooting window configured to be illuminated by radar signals; dividing the shooting window into a number of subgrids equal to a number of processing threads allocated to process the shooting window; dividing each of the subgrids into subcells equal to a whole number multiple greater than one of a number of parallel processors; illuminating the shooting window with radar signals; receiving radar signals reflected by the object within the shooting window; and assigning the reflected radar signals received from each subcell to a corresponding one of the parallel processors such that the assignment of parallel processors within a subgrid is evenly distributed amongst the parallel processors and such that the assignment of adjacent subcells to the same processor is avoided.