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GLRT Detection of Moving Targets via Multibaseline Along-Track Interferometric SAR Systems

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3 Author(s)
Budillon, A. ; Dipt. per le Tecnol., Univ. di Napoli “Parthenope”, Naples, Italy ; Evangelista, A. ; Schirinzi, G.

Along-track interferometric synthetic aperture radar systems can be used for ground moving target indication. We analyze a scheme for detecting moving targets with unknown parameters (velocity and signal-to-clutter ratio) and with constant false-alarm rates, based on the generalized likelihood ratio test (GLRT), and adopting a Gaussian model for target and clutter signals. We compare its performance with the one obtained in the ideal case of known target parameters applying the likelihood ratio test (LRT). A closed form for the LRT receiver operating characteristic is derived and used as reference for GLRT performance assessment. The analysis is carried out on simulated TerraSAR-X data.

Published in:

Geoscience and Remote Sensing Letters, IEEE  (Volume:9 ,  Issue: 3 )

Date of Publication:

May 2012

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