Verification of Polarimetric Calibration Method Including Faraday Rotation Compensation Using PALSAR Data

Takeshiro, A.; Furuya, Tomoaki; Fukuchi, Hajime

doi:10.1109/tgrs.2009.2034465

Cited by 16 publications

(11 citation statements)

References 11 publications

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“…It is known as the "Faraday effect" or " Faraday rotation", and PolSAR can be a useful tool for the investigation of such effect [128][129][130][131][132][133][134][135]. Attempts have also been made to combine SAR polarimetry and interferometry.…”

Section: Sensormentioning

confidence: 99%

See 1 more Smart Citation

Recent Trend and Advance of Synthetic Aperture Radar with Selected Topics

2013

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The present article is an introductory paper in this special issue on synthetic aperture radar (SAR). A short review is presented on the recent trend and development of SAR and related techniques with selected topics, including the fields of applications, specifications of airborne and spaceborne SARs, and information contents in and interpretations of amplitude data, interferometric SAR (InSAR) data, and polarimetric SAR (PolSAR) data. The review is by no means extensive, and as such only brief summaries of of each selected topics and key references are provided. For further details, the readers are recommended to read the literature given in the references theirin.

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Section: Sensormentioning

confidence: 99%

“…SAR polarimetry is a technique to extract information on the scattering objects from these five parameters. It should be noted that the polarimetric calibration is an important process prior to data analyses [133,134,701,702].…”

Section: Principle Of Polarimetrymentioning

confidence: 99%

Recent Trend and Advance of Synthetic Aperture Radar with Selected Topics

2013

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“…Kamal Sarabandi, X. Fabregas and Byron M. Welsh et al gradually enriched and developed polarimetric calibration techniques [1][2][3][4][5][6][7]. Several measurement mathematical models and polarimetric calibration algorithms were proposed and verified by a large number of simulations and by trials in an anechoic chamber and in the field.…”

Section: Introductionmentioning

confidence: 99%

Dynamic polarimetric calibration using a single dual-polarized antenna polarimetric active radar calibrator

Li¹,

He²,

Huang³

et al. 2013

IET International Radar Conference 2013

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This paper designs a single rotatable dual-polarized antenna polarimetric active radar calibrator (PARC) and proposes a corresponding dynamic calibration polarimetric (DPC) method. The novel PARC simplifies the system equipment and optimises the antenna's pattern. By modulating the timedelay of the retransmitted signal of the PARC, the polarimetric radar is calibrated with the DPC method. The simulations verify that the single dual-polarized antenna DPC scheme possesses better calibration accuracy than the doubleantenna DPC scheme.

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“…Though these methods were originally developed for airborne systems, they are also applicable to satellite systems, but encounter problems at long wavelengths because of complications arising from Faraday rotation (FR). This may not be a serious issue even for frequencies as low as L-band, such as the ALOS-PALSAR system [12][13][14][15][16][17][18][19][20][21], but at P-band it becomes a serious issue [22][23][24][25][26]. Fortunately, spaceborne SAR systems are much more stable than airborne systems, and scene-by-scene updates of the system errors are unlikely to be required [26].…”

Section: Introductionmentioning

confidence: 99%

“…Freeman investigated the calibration of polarimetric SAR using active radar calibrators [7,8], and there are several recent studies about the calibration of both FR and radar system errors for ALOS-PALSAR [13][14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Calibration of Spaceborne Linearly Polarized Low Frequency Sar Using Polarimetric Selective Radar Calibrators

Chen¹,

Quegan²,

Yin³

2011

PIER

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Abstract-Spaceborne synthetic aperture radar (SAR) systems operating at lower frequencies, such as P-band, are significantly affected by Faraday rotation (FR) effects. This paper presents a novel algorithm for measuring system errors (channel imbalance and cross-talk) in the presence of Faraday rotation for spaceborne polarimetric SAR data. It uses four polarimetric selective calibrators (four polarimetric active radar calibrators [PARCs] or possibly two PARCs and two gridded trihedrals).Theoretical analysis and simulations demonstrate that the optimized calibration scheme puts tight constraints on the accuracy of the associated Faraday rotation if the cross-talk is to be accurately measured. There are also strong constraints on the allowable signal-to-noise ratio and average polarimetric noise associated with the calibration devices. The analysis suggests that, unless the calibration sites are at the magnetic equator, independent measurements of total electron content (TEC) from a direct ground-satellite line-of-sight dual-frequency system are also needed.

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Verification of Polarimetric Calibration Method Including Faraday Rotation Compensation Using PALSAR Data

Cited by 16 publications

References 11 publications

Recent Trend and Advance of Synthetic Aperture Radar with Selected Topics

Recent Trend and Advance of Synthetic Aperture Radar with Selected Topics

Dynamic polarimetric calibration using a single dual-polarized antenna polarimetric active radar calibrator

Calibration of Spaceborne Linearly Polarized Low Frequency Sar Using Polarimetric Selective Radar Calibrators

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