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Propagation of Optical Coherence and Interferometric Imaging

Propagation of Optical Coherence and Interferometric Imaging
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The seasonal behavior of interferometric coherence in boreal forest

IEEE Transactions on Geoscience and Remote Sensing, 2001
The capability of SAR interferometry has been previously demonstrated in various applications. In particular, the use of interferometric coherence has shown promising results in forest monitoring, however, mainly in discriminating forested and nonforested areas. The authors have collected ERS-1 and ERS-2 Tandem data from two boreal forest test sites in
J Koskinen, Juha Hyyppä, M T Hallikainen   +2 more
exaly   +2 more sources

Interferometric Coherence Analysis of the Everglades Wetlands, South Florida

IEEE Transactions on Geoscience and Remote Sensing, 2013
Interferometric synthetic aperture radar (InSAR) observations of wetlands reveal spatially detailed measurements of water-level changes and quantitative images of flow dynamics. However, lateral variability of wetland vegetation results in a heterogeneous scattering medium, which can affect interferometric coherence levels and can even limit the ...
Sang-Wan Kim, Shimon Wdowinski, Falk Amelung   +2 more
exaly   +3 more sources

Interferometric Coherence Optimization: A Comparative Study

2013 Eighth International Conference on Broadband and Wireless Computing, Communication and Applications, 2013
The Interferometric coherence measures the degree of similarity or the correlation between the radar signals corresponding to complex SAR images viewed from close angles. The strong dependence of the interferometric coherence to the polarization state can consider that there is a combination of polarization to achieve maximum interferometric coherence.
Sofiane Tahraoui, Mounira Ouarzeddine, Boularbah Souissi   +2 more
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Spatial coherence: comparison of interferometric and non-interferometric measurements

SPIE Proceedings, 2003
Coherence properties of real laser beams can be crucial for many applications, e.g. in lithographic processes or for Bragg grating writing. Knowledge of the coherence distribution together with the amplitude and phase distribution allows for a complete beam characterization, which enables the numerical simulation of beam propagation through virtually ...
Bernd Eppich, Guido Mann, Horst Weber
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An empirical model for interferometric coherence

SPIE Proceedings, 2005
Many are the examples of application of SAR and differential SAR interferometry for topographic mapping and ground deformation monitoring. However, on repeat pass geometry, the performances of these two techniques are limited by the loss of correlation (coherence) between the two radar acquisitions. The lack of coherence causes an additional noise thus
F. Chaabane, F. Tupin, H. Maitre
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Separability of temporal coherence and spatial coherence in interferometric experiments

Journal of Optics, 1982
A set of conditions is introduced for spatial coherence and temporal coherence in an interferometer to be independent, such that the coherence function appears as the product of its spatial and temporal terms. These conditions are commonly fulfilled in usual setups.
A Marechal, P Chavel
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Coherence loss minimization in SAR interferometric registration

IEEE International Geoscience and Remote Sensing Symposium, 2003
A comparative study regarding the interpolation of stochastic electromagnetic band-limited signals in synthetic aperture radar (SAR) interferometry is detailed. It is shown that the most appropriate interpolation scheme to minimize the coherence losses is the one based on the Knab Sampling Window kernel.
Maurizio Migliaccio, Felice Bruno
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Interferometric coherence of SAR signals backscattered by a building

IEEE International IEEE International IEEE International Geoscience and Remote Sensing Symposium, 2004. IGARSS '04. Proceedings. 2004, 2004
In this paper we analytically evaluate the correlation coefficient between the signals backscattered towards two spatially separated antennas by a building modelled as a parallelepiped over a possibly rough terrain. We consider both single and multiple scattering contributions.
FRANCESCHETTI, GIORGIO, IODICE, ANTONIO, RICCIO, DANIELE, RUELLO, GIUSEPPE   +3 more
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Selective interferometric sensing by the use of coherence synthesis

Optics Letters, 1987
A technique is discussed and demonstrated whereby the sensitivity of an imbalanced fiber-optic interferometric sensor is changed by as much as 70 dB by modifying the power spectrum and thus the coherence function of the input optical source. This phenomenon is then extended and used to monitor selectively single sensors in a small fiber-optic ladder ...
R C, Youngquist, R H, Wentworth, K A, Fesler   +2 more
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