First Demonstration of Surface Currents Imaged by Hybrid Along- and Cross-Track Interferometric SAR

Siegmund, Robert; Bao, Mingquan; Lehner, Susanne; Mayerle, Roberto

doi:10.1109/tgrs.2003.817816

Cited by 49 publications

(26 citation statements)

References 10 publications

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“…With particular reference to the InSAeS4 system described in Section 2, such an approximation can be safely applied because the r/V x ratio is quite small. Indeed, it ranges from about 50 s in near range to 65 s in the near to coast area of Figure 2, thus being on the same order of magnitude of that found in the X-Band airborne SAR experiment presented in [18] (50 s), where exploitation of the linear relation in Equation (3) rather than the exact one is safely adopted.…”

Section: Rationale Of the Proposed Methodologysupporting

confidence: 53%

“…In an InSAR data pair separated by an XT baseline component, the same (even steady) target is located at two different range coordinates [1] r i and r j (where, as usual, i denotes the master channel and j the slave one) differing by an amount δr ij = r j − r i . Accordingly, combining effects (i) and (ii) leads to the following azimuth misregistration term [18]:…”

Section: Rationale Of the Proposed Methodologymentioning

confidence: 99%

“…For instance, in the airborne experiment in [18] two antiparallel acquisitions were carried out with a time delay of 10 min. In this way, two different single-pass interferograms relevant to the same scene and acquired at different times were collected.…”

Section: Introductionmentioning

confidence: 99%

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Sea State Observation through a Three-Antenna Hybrid XT/AT InSAR Configuration: A Preliminary Study Based on the InSAeS4 Airborne System

et al. 2017

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Abstract:In this work, we investigate the sea surface monitoring capabilities of a Synthetic Aperture Radar (SAR) system equipped with a three-antenna hybrid Across Track (XT)/Along Track (AT) inteferometric configuration. To do this, we focus on the X-Band airborne InSAeS4 SAR system. Moreover, we propose a simple but effective methodology that allows simultaneous retrieval of the sea surface height and velocity by means of a straightforward, easy-to-implement, linear inversion procedure, which is very general and can be implemented with any system equipped with a three-antenna hybrid XT/AT Interferometric SAR (InSAR) configuration. In our case, we present an experiment carried out in January 2013 in South Italy over the coastline stretch of the Campania region including the Volturno River outlet. In this regard, we highlight that in situ measurements of the retrieved sea surface height and velocity at the time of the airborne mission are unfortunately not available. Notwithstanding, the obtained results show some interesting evidence that the estimated quantities are physically sound. This, on the one side, provides a preliminary validation of the effectiveness of the overall presented methodology and, on the other side, highlights the potentialities of the three-antenna hybrid XT/AT InSAR configuration of the InSAeS4 system for sea state monitoring.

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Section: Rationale Of the Proposed Methodologysupporting

confidence: 53%

Section: Rationale Of the Proposed Methodologymentioning

confidence: 99%

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Sea State Observation through a Three-Antenna Hybrid XT/AT InSAR Configuration: A Preliminary Study Based on the InSAeS4 Airborne System

et al. 2017

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“…The along-track InSAR (AT-InSAR) can measure the velocity of ocean surface currents associated with tides, internal waves, and other oceanic features [63][64][65][66][67][68][69][70][71][72][73], and can also be used as a moving target indicator (MTI) to detect such deterministic (hard) targets as moving vehicles [74][75][76][77][78][79].…”

Section: Sensormentioning

confidence: 99%

“…AT-InSAR consists of two (or more) antennas placed along the body of an aircraft platform, and can measure the range velocity component of moving scatterers [63][64][65][66][67][68][69][70][71][72]. In general, a forward (or aft) antenna transmits signals and return signals are recived by both antennas.…”

Section: Along-track Insarmentioning

confidence: 99%

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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Optical/Infrared, Atmospheric Absorption/Transmission, and Media Spectral Properties

Liberti¹

2014

Encyclopedia of Earth Sciences Series

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First Demonstration of Surface Currents Imaged by Hybrid Along- and Cross-Track Interferometric SAR

Cited by 49 publications

References 10 publications

Sea State Observation through a Three-Antenna Hybrid XT/AT InSAR Configuration: A Preliminary Study Based on the InSAeS4 Airborne System

Sea State Observation through a Three-Antenna Hybrid XT/AT InSAR Configuration: A Preliminary Study Based on the InSAeS4 Airborne System

Recent Trend and Advance of Synthetic Aperture Radar with Selected Topics

Optical/Infrared, Atmospheric Absorption/Transmission, and Media Spectral Properties

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