Choosing imaging intervals for small ships

摘要

ISAR-based identification of small ships in a littoral environment must include measurement of the positions and characteristics of individual scatterers. Such measurements require a well focused complex image. Such focusing, as well as interpretability of the measurements, necessitates an adaptive choice of imaging intervals. We demonstrate an interval selection algorithm based on tracking individual scatterers. This approach offers important advantages over selecting imaging intervals on the basis of the target shape in intensity images.