A Particle Filter Approach for InSAR Phase Filtering and Unwrapping
This paper presents a new phase-unwrapping (PU) algorithm for SAR interferometry that makes use of a particle filter (PF) to perform simultaneously noise filtering and PU. The formulation of this technique provides independence from noise statistics and is not constrained by the nonlinearity of the...
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| Veröffentlicht in: | IEEE transactions on geoscience and remote sensing 2009-04, Vol.47 (4), p.1197-1211 |
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| container_title | IEEE transactions on geoscience and remote sensing |
| container_volume | 47 |
| creator | Martinez-Espla, J.J. Martinez-Marin, T. Lopez-Sanchez, J.M. |
| description | This paper presents a new phase-unwrapping (PU) algorithm for SAR interferometry that makes use of a particle filter (PF) to perform simultaneously noise filtering and PU. The formulation of this technique provides independence from noise statistics and is not constrained by the nonlinearity of the problem. In addition, an enhanced variant of this method combining a PF with artificial-intelligence search strategies and an omnidirectional local phase estimator, based on the mode of the power spectral density, is also presented. Results obtained with synthetic and real data show a significant improvement with respect to other conventional unwrapping algorithms in some situations. |
| doi_str_mv | 10.1109/TGRS.2008.2008095 |
| format | Article |
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| identifier | ISSN: 0196-2892 |
| ispartof | IEEE transactions on geoscience and remote sensing, 2009-04, Vol.47 (4), p.1197-1211 |
| issn | 0196-2892 1558-0644 |
| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Algorithms Applied geophysics Artificial intelligence Artificial intelligence (AI) Density Earth sciences Earth, ocean, space Exact sciences and technology extended Kalman filter (EKF) Filtering Filtering algorithms Filtration Gaussian noise grid filter Internal geophysics Noise particle filter (PF) Particle filters path following Phase estimation Phase noise phase unwrapping (PU) Polyurethane resins SAR interferometry Spectra state space State-space methods Statistics Synthetic aperture radar interferometry |
| title | A Particle Filter Approach for InSAR Phase Filtering and Unwrapping |
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