Title :
ISAR - radar imaging of targets with complicated motion
Author_Institution :
Norwegian Defence Res. Establ., Kjeller, Norway
Abstract :
ISAR imaging is described for general motion of a radar target. ISAR imaging may be seen as a 3D to 2D projection, and the importance of the ISAR image projection plane is stated. For general motion, ISAR images are often smeared when using FFT processing. Time frequency methods are used to analyze such images, and to form sharp images. A given smeared image is shown to be the result of changes both in scale and in the projection plane orientation.
Keywords :
fast Fourier transforms; image restoration; radar imaging; synthetic aperture radar; time-frequency analysis; 3D-2D projection; FFT processing; ISAR image projection plane; ISAR imaging; complicated motion radar targets; image sharpening; inverse synthetic aperture radar; projection plane orientation; radar target imaging; smeared images; time frequency methods; Control systems; Doppler radar; High-resolution imaging; Image analysis; Inverse synthetic aperture radar; Radar cross section; Radar imaging; Radar scattering; Synthetic aperture radar; Time frequency analysis;
Conference_Titel :
Image Processing, 2004. ICIP '04. 2004 International Conference on
Print_ISBN :
0-7803-8554-3
DOI :
10.1109/ICIP.2004.1418675
