Xueshi Li, Guang-Cai Sun, Min Wu, Yi Zhang, Mengdao Xing, Yufeng Wu
EUSAR 2014; 10th European Conference on Synthetic Aperture Radar
Compared with single-channel TOPS SAR, a multichannel TOPS SAR system is capable of imaging a wider swath with a higher azimuth resolution for improved moving target detection. For TOPS SAR, due to antenna beam steering, the azimuth bandwidth of background clutter is much larger than the instantaneous signal bandwidth. Therefore, the background clutter is highly aliased if the PRF is designed to be equal to or less than the instantaneous signal bandwidth, yielding degraded clutter suppression performance. To overcome this problem, a new method, referred to as spectrum compression space-time adaptive processing (SC-STAP), is proposed in this paper.
X Li, GC Sun, M Wu, Y Zhang, M Xing, Y Wu - EUSAR 2014; 10th European Conference on Synthetic …, 2014