- AURUM Mühendislik Sistemleri ve Mimarlık Dergisi
- Vol: 7 Issue: 1
- AN INTEGRATED METHOD FOR REFOCUSING OF MOVING TARGETS IN SPOTLIGHT SAR
AN INTEGRATED METHOD FOR REFOCUSING OF MOVING TARGETS IN SPOTLIGHT SAR
Authors : İbrahim PAPİLA, Selçuk PAKER, Mesut KARTAL
Pages : 41-53
View : 18 | Download : 26
Publication Date : 2023-06-30
Article Type : Research Article
Abstract :A new target-refocusing technique based-on re-centering phase computation of previously recorded moving target raw data is implemented to the Spotlight SAR data in order to obtain refocused moving targets. The technique is tested on the integrated simulated data; background real spotlight SAR Raw data with the synthetically generated data domes of civilian moving targets. First Polar format Algorithm is applied to detect and estimate the speed of ground-moving targets on the integrated raw data. At the next step, re-organize the integrated raw data by selecting and arranging target focusing center with a new technique based on re-centering phase computation to each moving target speed. At the third step re-organize the raw data by re-centering the phase computation to each moving target location. Finally, Polar Format Algorithm is applied to each reorganized raw data to obtain highly focused moving targets individuallyKeywords : Ground moving target, spotlight SAR, Refocusing, phase correction, Polar Format Algorithm