Radar polaritnetry for geoscience applications

Ulaby, F. T.; Elachi, C.

doi:10.1080/10106049009354274

Cited by 309 publications

(297 citation statements)

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“…The expression (26) is similar to that showed in [3] for a filamentary dipole for backscatter direction in BSA convention, unless the constants. As stated in [3] …”

Section: A Four Layers Structurementioning

confidence: 51%

“…According to [3], the electric field of a plane wave traveling in the direction kˆ could be characterized in terms of horizontal Applying this approach to the four layers structure, the scattered electric field is obtained by using (10), (11) and (12). The components of the scattered electric field for linear vertical and horizontal polarized incident wave are given by:…”

Section: A Four Layers Structurementioning

confidence: 99%

“…In the far zone of the target, the scattered wave is an outgoing, spherical wave, which can be approximated by a plane wave over the relatively small area occupied by the receiving antenna [3].…”

Section: A Four Layers Structurementioning

confidence: 99%

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Closed form expressions for scattering matrix of simple targets in multilayer structures

Sant’Anna¹,

Lacava

Fernandes

2007

2007 IEEE International Geoscience and Remote Sensing Symposium

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Abstract-Scattering matrix of a simple target embedded in multilayer planar structure is derived. The structure is excited by an elliptically polarized plane wave incident at an oblique angle. The calculation of the electromagnetic fields is performed in spectral domain. The scattering matrix of a planar electric dipole printed on upper interface and surrounding by free-space is evaluated. The obtained results agree with those existing on the literature for normal incidence case.

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“…The expression (26) is similar to that showed in [3] for a filamentary dipole for backscatter direction in BSA convention, unless the constants. As stated in [3] …”

Section: A Four Layers Structurementioning

confidence: 51%

Section: A Four Layers Structurementioning

confidence: 99%

See 1 more Smart Citation

Closed form expressions for scattering matrix of simple targets in multilayer structures

Sant’Anna¹,

Lacava

Fernandes

2007

2007 IEEE International Geoscience and Remote Sensing Symposium

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“…The analysis of a trihedral response showed a polarization purity of around 30 dB between the co-polar and cross-polar channels. This allowed to describe the polarimetric distortion of the system by a diagonal matrix and to apply the calibration method proposed in [4]. Two reference point scatterers, a pure co-polar (Trihedral) and a pure cross-polar calibrator (Bruderhedral 45ºdegree tilted respect to the line of sight), were hence used for the purpose.…”

Section: Measuring Activity Descriptionmentioning

confidence: 99%

Polarimetric temporal information for urban deformation map retrieval

Pipia

Fábregas

Aguasca

et al. 2007

2007 IEEE International Geoscience and Remote Sensing Symposium

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Abstract-In this work, a preliminary study on the use of polarimetric persistent scatterers for differential interferometric applications within an urban environmental is presented. The PolSAR measurements campaign that the RSLab of UPC is carrying on in the village of Sallent using an X-Band groundbased SAR sensor is first described. The work is then focused on the additional information the knowledge of full scattering matrix [S] may provide with respect to the single polarization approach. The problem of instability of the polarimetric signature of urban targets is also analyzed. Finally, a solution based on the search of repeated patterns in the long-temporal profile of pixels' polarimetric signature is briefly introduced.

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“…For this experimental study, the BSA (BackScatter Alignment) convention is used [10] and the absolute phase of the scattering matrix is not considered. Assuming reciprocity of the antenna system of the Delft Atmospheric Research Radar [11], the data used for this analysis are time-dependent symmetric scattering matrices.…”

Section: Introductionmentioning

confidence: 99%