Title :
Super-resolution ISAR imaging using polarimetric techniques for subspace dimensionality
Author :
Mitchell, Jon ; Tjuatja, Saibun
Author_Institution :
Dept. of Electr. Eng., Univ. of Texas at Arlington, Arlington, TX, USA
Abstract :
This paper demonstrates a technique for super-resolution ISAR imaging using polarimetry to determine the signal subspace dimensionality for the MUSIC algorithm. By creating a feature vector, polarimetric information from the target is used to accurately determine the number of primary scatterers in a simple target geometry with added noise. This information is used to determine the signal subspace dimension, which is used in the MUSIC super-resolution imaging algorithm, resulting in high resolution target images in the presence of additive noise.
Keywords :
geophysical image processing; geophysical techniques; image reconstruction; radar imaging; synthetic aperture radar; MUSIC super-resolution imaging algorithm; high resolution target images; polarimetric information; polarimetric techniques; primary scatterers; signal subspace dimensionality; simple target geometry; super-resolution ISAR imaging; Image resolution; Imaging; Multiple signal classification; Scattering; Signal resolution; Signal to noise ratio; Vectors; ISAR; MUSIC; Polarimetry; Radar Imaging;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2012 IEEE International
Conference_Location :
Munich
Print_ISBN :
978-1-4673-1160-1
Electronic_ISBN :
2153-6996
DOI :
10.1109/IGARSS.2012.6352206