Bistatically equivalent monostatic approximation for bistatic ISAR

Abstract

Bistatic Inverse Synthetic Aperture Radar has recently gained interest as bistatic and multistatic radar systems are becoming increasingly popular. A theoretical foundation has been laid that introduces the concept of Bistatically Equivalent Monostatic (BEM) configuration, which allows approximating a bistatic geometry with a monostatic one. This greatly simplifies not only the geometrical understanding but also allows using monostatic ISAR processors to form bistatic ISAR images. In this paper further considerations are discussed, such as the analytical calculation of the effective rotation vector and the bistatic ISAR image plane when considering a BEM configuration. Simulated and real data analysis is also provided that prove the theoretical results.