Title :
Feature Enhanced Synthetic Aperture Radar Image Formation
Author :
Bin, Sun ; Haibo, Jin
Author_Institution :
Zhejiang Univ., Hangzhou
Abstract :
We propose a feature enhanced image reconstruction method for spotlight mode synthetic aperture radar. Based on the image processing of computerized tomography model, this method has increased resolution, reduced side lobes and reduced speckle by incorporating prior information regarding the features of interested scattering fields. Also, by using the extension of half quadratic regularization methods, this algorithm effectively deals with the complex valued, random phrase nature of the underlying SAR reflectivities.
Keywords :
feature extraction; image reconstruction; synthetic aperture radar; computerized tomography; feature enhanced image reconstruction; half quadratic regularization; image resolution; spotlight mode; synthetic aperture radar; Bandwidth; Chirp; Computed tomography; Frequency; Image reconstruction; Image resolution; Instruments; Radar scattering; Reflectivity; Synthetic aperture radar; optimization algorithm; quasi-Newton method; reflectivity; resolution; synthetic aperture radar;
Conference_Titel :
Electronic Measurement and Instruments, 2007. ICEMI '07. 8th International Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-1-4244-1136-8
Electronic_ISBN :
978-1-4244-1136-8
DOI :
10.1109/ICEMI.2007.4350802
