TY - GEN
T1 - A novel imaging algorithm for inverse-tops data processing
AU - Bian, Liang
AU - Li, Jingwen
AU - Yang, Wei
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/10/23
Y1 - 2015/10/23
N2 - Inverse TOP (Terrain Observation by Progressive Scans) mode is a state-of-the-art SAR mode, which can realize both low and high azimuth resolutions conveniently, and alleviate the scalloping effect. This paper addresses a novel image formation algorithm to deal with inverse TOPS data processing with four steps. The first step is adopted the de-rotation in azimuth, which will avoid azimuth frequency superposition. Then, the precise focusing kernel is used. Due to the de-rotation operation, the sampling rate is changed that resulting the overlap in SAR image along azimuth direction. So, resampling operation is necessary after focusing, and the resampling rate is studied. Furthermore, the combination operation is implemented, which realizes the combination of sub-swaths. Finally, numerical simulations were implemented to verify the accuracy of the proposed imaging algorithm.
AB - Inverse TOP (Terrain Observation by Progressive Scans) mode is a state-of-the-art SAR mode, which can realize both low and high azimuth resolutions conveniently, and alleviate the scalloping effect. This paper addresses a novel image formation algorithm to deal with inverse TOPS data processing with four steps. The first step is adopted the de-rotation in azimuth, which will avoid azimuth frequency superposition. Then, the precise focusing kernel is used. Due to the de-rotation operation, the sampling rate is changed that resulting the overlap in SAR image along azimuth direction. So, resampling operation is necessary after focusing, and the resampling rate is studied. Furthermore, the combination operation is implemented, which realizes the combination of sub-swaths. Finally, numerical simulations were implemented to verify the accuracy of the proposed imaging algorithm.
KW - combination
KW - inverse TOPS
KW - pre- processing
KW - SAR
UR - https://www.scopus.com/pages/publications/84957612347
U2 - 10.1109/APSAR.2015.7306240
DO - 10.1109/APSAR.2015.7306240
M3 - 会议稿件
AN - SCOPUS:84957612347
T3 - Proceedings of the 2015 IEEE 5th Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2015
SP - 425
EP - 427
BT - Proceedings of the 2015 IEEE 5th Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 5th IEEE Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2015
Y2 - 1 September 2015 through 4 September 2015
ER -