Deformation, Ecosystem Structure, and Dynamics of Ice (DESDynI)

Donnellan, Andrea; Rosen, P. A.; Graf, James E.; Loverro, Adam; Freeman, A.; Treuhaft, R. N.; Oberto, R.; Simard, Marc; Rignot, Eric; Kwok, R.; Pi, Xiaoqing; Blair, J. B.; Abdalati, W.; Ranson, J.; Zebker, H. A.; Hager, Benjamin; Shugart, H. H.; Fahnestock, M. A.; Dubayah, Ralph

doi:10.1109/aero.2008.4526249

Cited by 19 publications

(7 citation statements)

References 13 publications

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“…DESDynI's payload has two primary instruments, an Lband SAR, and a multi-beam Lidar. Although one of DESDynI's themes is the synergy between the SAR and the laser [3,4], only the radar is relevant to this paper.…”

Section: Desdynimentioning

confidence: 99%

Hybrid-Polarity SAR Architecture

Raney

2007

IEEE Trans. Geosci. Remote Sensing

476

262

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A space-based synthetic aperture radar (SAR) designed to provide quantitative information on a global scale implies severe requirements to maximize coverage and to sustain reliable operational calibration. These requirements are best served by the hybrid-polarity architecture, in which the radar transmits in circular polarization, and receives on two orthogonal linear polarizations, coherently, retaining their relative phase. This paper reviews those advantages, summarizes key attributes of hybrid-polarity dual-and quadrature-polarized SARs including conditions under which the signal-to-noise ratio is conserved, and describes the evolution of this architecture from first principles.

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Section: Desdynimentioning

confidence: 99%

Hybrid-Polarity SAR Architecture

Raney

2007

IEEE Trans. Geosci. Remote Sensing

476

262

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“…Starting from this report several studies were executed to assess requirements versus possible space missions to be conducted in the near-and mid-term [18,[61][62][63]. These studies explored measurements that reach satisfying scientific requirements in terms of accuracy in surface displacement detection and of revisit frequency.…”

Section: Luna Rossa Observatory In the Framework Of Future Microwmentioning

confidence: 99%

“…According to the recommendations of NRC, NASA planned the Deformation, Ecosystem Structure, and Dynamics of Ice (DESDynI) mission, scheduled to be launched within 2010-2013 [61,62]. The main payload is an L-band SAR, working in single or dual-polarization mode.…”

Section: Luna Rossa Observatory In the Framework Of Future Microwmentioning

confidence: 99%

Synthetic Aperture Radar for Earth Observation from a Lunar Base: Performance and Potential Applications

Moccia

Renga

2010

IEEE Trans. Aerosp. Electron. Syst.

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Starting from the reborn international interest inlunar exploration and the widely documented need for hyper-accurate measurements of Earth crustal dynamics, at a high revisit frequency and on a global scale, the idea of a Moon-based interferometric synthetic aperture radar (SAR) is presented. After introducing models to describe synthetic antenna formation and discussing key issues of a Moon-based radar for Earth remote sensing, a preliminary system design and performance analysis are conducted. Quantitative results are presented in terms of achievable resolutions and needed radar parameters. Although the Moon-based observatory requires technical solutions and a budget that likely make its realization distant, a comparison with currently planned spaceborne interferometric systems shows that it offers height measurement accuracies at a level and with a frequency not achievable otherwise.

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“…The National Aeronautics and Space Administration (NASA) and Indian Space Research Organization (ISRO) Synthetic Aperture Radar (NISAR) is a dual‐frequency (L‐ and S‐bands) repeat‐pass radar mission that will acquire near‐global SAR data with a revisit time of 12 days (Rosen et al., 2015). The primary objective of the NISAR mission is to disentangle the complexity of several geophysical processes deforming the Earth's surface ranging from natural hazards (e.g., earthquakes, ice sheet collapse, volcano eruptions) to ecosystem disturbances, offering an unprecedented spatial and temporal coverage (Donnellan et al., 2008). Compared to other existing operational missions (e.g., Sentinel‐1 A/B), the long‐wavelength (∼24 cm) of the L‐band radar, built by NASA, will improve our understanding of several deformation processes occurring in moderate to heavily vegetated areas and usually undetectable with shorter wavelength SAR systems (Rosen et al., 2015).…”

Section: Introductionmentioning

confidence: 99%

UAVSAR Observations of InSAR Polarimetric Phase Diversity: Implications for NISAR Ionospheric Phase Estimation

Brancato

Fattahi

2021

Earth and Space Science

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• The L-band NASA-ISRO NISAR mission will acquire fully polarimetric radar data at different center frequencies (i.e. quasi-quad mode, QQP). • In QQP mode, operational algorithms will use the difference of co-polarized subband interferograms to estimate the ionospheric phase delay. 10 • Polarimetric-dependent changes of the scattering phase may introduce spurious 11 terms which may bias QQP ionospheric phase estimates at L-band.

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Deformation, Ecosystem Structure, and Dynamics of Ice (DESDynI)

Cited by 19 publications

References 13 publications

Hybrid-Polarity SAR Architecture

Hybrid-Polarity SAR Architecture

Synthetic Aperture Radar for Earth Observation from a Lunar Base: Performance and Potential Applications

UAVSAR Observations of InSAR Polarimetric Phase Diversity: Implications for NISAR Ionospheric Phase Estimation

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