TY - GEN
T1 - A deramp frequency scaling algorithm for processing space-borne spotlight SAR data
AU - Pengbo, Wang
AU - Zhou, Yinqing
AU - Chen, Jie
AU - Li, Chunsheng
AU - Yu, Ze
AU - Min, He
PY - 2006
Y1 - 2006
N2 - Reduced the data rate is one of the difficulties in high-resolution space-borne spotlight synthetic aperture radar (SAR). Based on Deramp Chirp Scaling (DCS) algorithm and Frequency Scaling (FS) algorithm, a Deramp Frequency Scaling (DFS) algorithm for processing high-resolution space-borne spotlight SAR data is presented. The algorithm stars with raw data dechirped in range. First, the azimuth spectral folding phenomenon is overcome by using azimuth deramp processing. Secondly, the precise Range cell migration correction is achieved by frequency scaling processing and phase compensation. Lastly, the azimuth compression is performed by match filter. Based on the squinted equivalent range model, the complete derivation of the algorithm is presented and the realizing approach is given. Finally, the computer simulation shows the validity of the algorithm.
AB - Reduced the data rate is one of the difficulties in high-resolution space-borne spotlight synthetic aperture radar (SAR). Based on Deramp Chirp Scaling (DCS) algorithm and Frequency Scaling (FS) algorithm, a Deramp Frequency Scaling (DFS) algorithm for processing high-resolution space-borne spotlight SAR data is presented. The algorithm stars with raw data dechirped in range. First, the azimuth spectral folding phenomenon is overcome by using azimuth deramp processing. Secondly, the precise Range cell migration correction is achieved by frequency scaling processing and phase compensation. Lastly, the azimuth compression is performed by match filter. Based on the squinted equivalent range model, the complete derivation of the algorithm is presented and the realizing approach is given. Finally, the computer simulation shows the validity of the algorithm.
KW - Frequency scaling algorithm
KW - High resolution
KW - Synthetic aperture radar
UR - https://www.scopus.com/pages/publications/34948890105
U2 - 10.1109/IGARSS.2006.808
DO - 10.1109/IGARSS.2006.808
M3 - 会议稿件
AN - SCOPUS:34948890105
SN - 0780395107
SN - 9780780395107
T3 - International Geoscience and Remote Sensing Symposium (IGARSS)
SP - 3131
EP - 3134
BT - 2006 IEEE International Geoscience and Remote Sensing Symposium, IGARSS
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2006 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2006
Y2 - 31 July 2006 through 4 August 2006
ER -