TY - GEN
T1 - Suppression of azimuth ambiguities in spaceborne stripmap SAR using accurate restoration modeling
AU - Wang, Kai
AU - Chen, Jie
AU - Yang, Wei
AU - Li, Zhuo
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/11/10
Y1 - 2015/11/10
N2 - Spaceborne Synthetic Aperture Radar (SAR) has attracted special interests in many applications, but suffers from image quality degradation caused by azimuth ambiguities. To suppress this phenomenon, different from conventional suppression method, this paper concentrates on the analysis of precise mathematic expression of azimuth ambiguities. Exploiting the specific characteristic of ambiguities, a restoration algorithm to suppress azimuth ambiguities of stripmap SAR is proposed. This method is not sensitive to SNR, and also suitable for distributed targets. Azimuth ambiguities are accurately restored and then cancelled in SAR image. Proposed method has been shown effective by experiments, demonstrating capabilities of removing artifacts and revealing covered targets in stripmap SAR image.
AB - Spaceborne Synthetic Aperture Radar (SAR) has attracted special interests in many applications, but suffers from image quality degradation caused by azimuth ambiguities. To suppress this phenomenon, different from conventional suppression method, this paper concentrates on the analysis of precise mathematic expression of azimuth ambiguities. Exploiting the specific characteristic of ambiguities, a restoration algorithm to suppress azimuth ambiguities of stripmap SAR is proposed. This method is not sensitive to SNR, and also suitable for distributed targets. Azimuth ambiguities are accurately restored and then cancelled in SAR image. Proposed method has been shown effective by experiments, demonstrating capabilities of removing artifacts and revealing covered targets in stripmap SAR image.
KW - Azimuth ambiguities
KW - ambiguities restoration
UR - https://www.scopus.com/pages/publications/84962527432
U2 - 10.1109/IGARSS.2015.7326300
DO - 10.1109/IGARSS.2015.7326300
M3 - 会议稿件
AN - SCOPUS:84962527432
T3 - International Geoscience and Remote Sensing Symposium (IGARSS)
SP - 2429
EP - 2432
BT - 2015 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2015 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2015
Y2 - 26 July 2015 through 31 July 2015
ER -