Comparative study of diverse methods of radar imaging

The goal is to make evident the similarities between certain processing techniques while the physical approaches can be quite different. The authors present a side-looking image of a Peugeot 504 when the frequency-stepping technique is used and when the target is supposed to be within the radar beam for each radar position. This two-dimensional image was constructed by the algorithm of coherent summation developed in holographic radar. To use this algorithm in the side-looking radar, it is equivalent to interpret the lateral displacement as an angular displacement