作者
Guang-Cai Sun, Mengdao Xing, Xiang-Gen Xia, Yufeng Wu, Pingping Huang, Yirong Wu, Zheng Bao
发表日期
2013/2/1
期刊
IEEE Transactions on Geoscience and Remote Sensing
卷号
51
期号
9
页码范围
4761-4778
出版商
IEEE
简介
Terrain Observation by Progressive Scans (TOPS) synthetic aperture radar (SAR) and spotlight SAR are advanced SAR imaging modes for wide range swath and high resolution. In order to obtain a wider range coverage, azimuth multichannel is introduced in the literature. Since the azimuth bandwidth of beam steering SAR (BS-SAR; spotlight SAR, sliding spotlight SAR, or TOPS SAR) is much greater than that of a stripmap SAR, a signal reconstruction algorithm used for multichannel stripmap SAR may not be effective for multichannel BS-SAR. In this paper, a multichannel full-aperture azimuth processing algorithm is proposed for a BS-SAR. The key of this algorithm lies in the beam and the azimuth bandwidth compressions of multichannel signals in the Doppler-array and slow time-angle planes, respectively. Through compression processing, the beamwidth and the azimuth bandwidth are smaller than the …
学术搜索中的文章
GC Sun, M Xing, XG Xia, Y Wu, P Huang, Y Wu, Z Bao - IEEE Transactions on Geoscience and Remote …, 2013