TY - GEN
T1 - A new subaperture chirp scaling algorithm for spaceborne spotlight SAR data focusing
AU - Sun, Jinping
AU - Yang, Zhifeng
AU - Hong, Wen
AU - Mao, Shiyi
PY - 2007
Y1 - 2007
N2 - In order to overcome the azimuth spectrum folding occurrence in the spotlight imaging mode of the high resolution spaceborne Synthetic Aperture Radar (SAR), we presented a new extended subaperture chirp scaling algorithm (CSA) in this paper. Several phase functions of the extended CSA were modified according to the properties of subaperture processing. These modifications make the new algorithm realize the precise recombination of the phase history data of each subaperture without any additional computation load, making the subaperture overlapping and azimuth time extension unnecessary. The validity of this new algorithm is proved through point target simulations by adopting TerraSAR-X system parameters in the spotlight mode with Im resolution and a swath of 10Km both in the range and azimuth.
AB - In order to overcome the azimuth spectrum folding occurrence in the spotlight imaging mode of the high resolution spaceborne Synthetic Aperture Radar (SAR), we presented a new extended subaperture chirp scaling algorithm (CSA) in this paper. Several phase functions of the extended CSA were modified according to the properties of subaperture processing. These modifications make the new algorithm realize the precise recombination of the phase history data of each subaperture without any additional computation load, making the subaperture overlapping and azimuth time extension unnecessary. The validity of this new algorithm is proved through point target simulations by adopting TerraSAR-X system parameters in the spotlight mode with Im resolution and a swath of 10Km both in the range and azimuth.
UR - https://www.scopus.com/pages/publications/47349133558
U2 - 10.1109/APSAR.2007.4418594
DO - 10.1109/APSAR.2007.4418594
M3 - 会议稿件
AN - SCOPUS:47349133558
SN - 1424411882
SN - 9781424411887
T3 - 2007 1st Asian and Pacific Conference on Synthetic Aperture Radar Proceedings, APSAR 2007
SP - 221
EP - 224
BT - 2007 1st Asian and Pacific Conference on Synthetic Aperture Radar Proceedings, APSAR 2007
T2 - 2007 1st Asian and Pacific Conference on Synthetic Aperture Radar, APSAR 2007
Y2 - 5 November 2007 through 9 November 2007
ER -