Multichannel Along-Track Interferometric SAR Systems : Moving Targets Detection and Velocity Estimation
Joint Authors
Pascazio, Vito
Schirinzi, Gilda
Budillon, Alessandra
Source
International Journal of Navigation and Observation
Issue
Vol. 2008, Issue 2008 (31 Dec. 2008), pp.1-16, 16 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2008-12-15
Country of Publication
Egypt
No. of Pages
16
Main Subjects
Abstract EN
Along-track interferometric synthetic aperture radar (AT-InSAR) systems are used to estimate the radial velocity of targets moving on the ground, starting from the interferometric phases, obtained by the combinations of two complex SAR images acquired by two antennas spatially separated along the platform moving direction.
Since the radial velocity estimation obtained from a single-phase interferogram (single-channel) suffers from ambiguities, multichannel AT-InSAR systems using more than one interferogram can be used.
In this paper, we first analyze the moving target detection problem, evaluating the systems performance in terms of probability of detection and probability of false alarm obtained with different values of target radial velocity, signal-to-clutter ratio, and clutter-to-thermal noise ratio.
Then, we analyze the radial velocity estimation accuracy in terms of Cramer-Rao lower bounds and of mean square error values, obtained by using a maximum likelihood estimation technique.
We consider the cases of single-baseline and dual-baseline satellite systems, and we evaluate the detection and estimation performance improvement obtained in the dual-baseline case with respect to the single-baseline one.
Sensitivity of the presented method with respect to the involved target and system parameters is also discussed.
American Psychological Association (APA)
Budillon, Alessandra& Pascazio, Vito& Schirinzi, Gilda. 2008. Multichannel Along-Track Interferometric SAR Systems : Moving Targets Detection and Velocity Estimation. International Journal of Navigation and Observation،Vol. 2008, no. 2008, pp.1-16.
https://search.emarefa.net/detail/BIM-462471
Modern Language Association (MLA)
Budillon, Alessandra…[et al.]. Multichannel Along-Track Interferometric SAR Systems : Moving Targets Detection and Velocity Estimation. International Journal of Navigation and Observation No. 2008 (2008), pp.1-16.
https://search.emarefa.net/detail/BIM-462471
American Medical Association (AMA)
Budillon, Alessandra& Pascazio, Vito& Schirinzi, Gilda. Multichannel Along-Track Interferometric SAR Systems : Moving Targets Detection and Velocity Estimation. International Journal of Navigation and Observation. 2008. Vol. 2008, no. 2008, pp.1-16.
https://search.emarefa.net/detail/BIM-462471
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-462471