Patent ID: 7245250

Claim:
A method of generating multi-resolution synthetic aperture radar (SAR) images, the method comprising the steps of: a) obtaining SAR phase history data, denoted as PH; b) calculating an inverse Fourier transform of a first data set, denoted as ph 0 , of the SAR phase history data, PH, to form a highest resolution image, denoted as G 0 , where G 0 =FT −1 ( ph 0 ); c) calculating the inverse Fourier transform of a plurality of other data sets, denoted as ph 1 . . . ph N , to form a plurality of correlated lower resolution images, denoted as G 1 . . . G N , where G i =FT −1 ( ph i ), for i= 1 to N; d) subtracting successive ones of the highest resolution image, G 0 , and the lower resolution images, G 1 . . . G N , to obtain a plurality of edge enhanced images, denoted as L 0 . . . L N−1 , where L i =G i −G i+1 , for i= 0 to N− 1; and e) obtaining a lowest resolution image, denoted as L N .