Title :
Study on SAR image formation for aspect-dependent scatterers
Author :
Qi, Liu ; Yun, Lin ; Weixian, Tan ; Yanping, Wang ; Wen, Hong ; Yirong, Wu
Author_Institution :
Nat. Key Lab. of Microwave Imaging Technol. (MITL), Beijing, China
Abstract :
The isotropic scattering point scattering assumption is not hold for wide angle aperture SAR. This paper introduced an image reconstruction method for the scatters objects that have narrow beam patterns and aspect-dependent scattering properties. The directional filter bank is applied to form well-matched subimages, which are noncoherently combined in the generalized likelihood ratio test (GLRT) image. This noncoherent composite image retains the information of aspect-varying scattering of objects.
Keywords :
channel bank filters; image reconstruction; matched filters; radar imaging; synthetic aperture radar; aspect-dependent scattering; directional filter bank; image reconstruction; isotropic scattering point scattering; radar image formation; synthetic aperture radar; Electromagnetic scattering; Filter bank; Frequency; Geometry; Image reconstruction; Matched filters; Radar antennas; Radar imaging; Radar scattering; Synthetic aperture radar; angle matched filter bank; aspect-dependent scattering; synthetic aperture radar;
Conference_Titel :
Synthetic Aperture Radar, 2009. APSAR 2009. 2nd Asian-Pacific Conference on
Conference_Location :
Xian, Shanxi
Print_ISBN :
978-1-4244-2731-4
Electronic_ISBN :
978-1-4244-2732-1
DOI :
10.1109/APSAR.2009.5374285
