Abstract:

Inverse synthetic aperture radar (ISAR) and synthetic aperture radar (SAR) both utilize the relative motion of the target (scene ) and radar to improve cross range resolution, and then obtain the target's image. Usually, in SAR, the radar moves steadily by controlling, and the deviation can be measured, but, in ISAR, the target's motion is non cooperative, and is difficult to measure. When the target maneuvers, and if the target is taken as reference, the radar will form an inverse synthetic aperture (array) equivalently. This paper studies this imaging problem systematically.

Key words: inver se synthetic apertur e radar ( ISAR), maneuver ing tar get, IN-ISAR