Mure-Dubois Introduction SAR processing Experiments SAS system SAS PSF SAS for extended objects 77GHz SAR system Conclusions SAS for extended objects Range Compression Azimuth FFT Azimuth IFFT H* (Kx,r(x0,y)) S (Kx,r) s (x,r) Sm(Kx,y) I (x,y) PSF estim. Azimuth Compression Range Compression Azimuth FFT Azimuth IFFT H* (Kx,r(x0,y)) S (Kx,r) s (x,r) Sm(Kx,y) I (x,y) PSF estim. Azimuth Compression Objects boundaries are not clearly defined in raw data SAS image is sharper, allows to separate objects J. Mure-Dubois/ 08.09.2011 - 12 -