Title :
Azimuth multi-channel spotlight SAR imaging
Author :
Xile, Ma ; Guanghu, Jin ; Qi, Chen ; Zaoyu, Sun ; Zhen, Dong
Author_Institution :
Space Electron. Inf. Technol. Inst., Nat. Univ. of Defense Technol., Changsha, China
Abstract :
Due to a system-inherent limitation, conventional SAR system is not capable of fulfilling the increasing demands of improved spatial resolution and wider swath coverage. Multi-channel SAR system is of great potential to realize high resolution wide swath (HRWS) imaging. This paper focuses on strategies to extend mapping extension of multi-channel SAR operated in spotlight mode. Subaperture based and modified deramping based approaches are put forward to implementing azimuth processing respectively.
Keywords :
image resolution; radar imaging; radar resolution; synthetic aperture radar; SAR imaging; azimuth multi-channel spotlight; high resolution wide swath imaging; mapping extension; modified deramping; spatial resolution; swath coverage; system-inherent limitation; Azimuth; Bandwidth; Doppler effect; Geoscience and remote sensing; Imaging; Spatial resolution; Azimuth multi-channel; High resolution wide swath(HRWS); Modified deramping; Spotlight; Subaperture;
Conference_Titel :
Radar (Radar), 2011 IEEE CIE International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-8444-7
DOI :
10.1109/CIE-Radar.2011.6159850
