Title :
Multiple scatterers detection in CS-based SAR tomography
Author :
Budillon, Alessandra ; Schirinzi, Gilda
Author_Institution :
Dipt. di Ing., Univ. degli Studi di Napoli “Parthenope”, Naples, Italy
Abstract :
In this paper we investigate the application of a GLRT detector of multiple scatterers in SAR tomography, exploiting the sparsity assumption of the signal in the elevation direction. The GLRT approach aims at estimating the signal support (positions of the samples different from zero of the unknown sparse signal) that best matches to the data for detecting and positioning multiple scatterers lying in the same range-azimuth resolution cell.
Keywords :
geophysical techniques; remote sensing by radar; synthetic aperture radar; CS-based SAR tomography; GLRT approach; GLRT detector application; multiple scatterers detection; range-azimuth resolution cell; signal support; Compressed sensing; Noise; Signal resolution; Spaceborne radar; Synthetic aperture radar; Tomography; Vectors; Detection; SAR; Tomography;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2014 IEEE International
Conference_Location :
Quebec City, QC
DOI :
10.1109/IGARSS.2014.6946671
