Title :
New applications of non-linear chirp scaling in SAR data processing
Author :
Wong, Frank H. ; Tat Soon Yeo ; Ngee Leng Tan
Author_Institution :
Dept. of Electr. Eng., Nat. Univ. of Singapore, Singapore
Abstract :
This paper presents a nonlinear chirp scaling in processing monostatic and bistatic SAR data. When the effects of quadratic range migration are negligible, a time domain range cell migration correction can be applied. After the correction, the FM rates of targets confined in a range gate will differ from each other. A nonlinear chirp perturbation function can be applied to each range gate to equalize the targets´ FM rates before azimuth compression
Keywords :
chirp modulation; geophysical signal processing; geophysical techniques; radar signal processing; remote sensing by radar; spaceborne radar; synthetic aperture radar; terrain mapping; FM rates; SAR; azimuth compression; bistatic; data processing; geophysical measurement technique; land surface; monostatic; nonlinear chirp scaling; perturbation function; quadratic range migration; radar remote sensing; radar signal processing; range gate; spaceborne radar; synthetic aperture radar; terrain mapping; time domain range cell migration correction; Azimuth; Chirp; Convolution; Data processing; Doppler radar; Frequency; Layout;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2000. Proceedings. IGARSS 2000. IEEE 2000 International
Conference_Location :
Honolulu, HI
Print_ISBN :
0-7803-6359-0
DOI :
10.1109/IGARSS.2000.860433
