Results 111 to 120 of about 1,801,267 (226)
Multi-Channel ScanSAR for High-Resolution Ultra-Wide-Swath Imaging [PDF]
, 2008 Multi-channel radar systems enable to overcome the inherent limitation of conventional synthetic aperture radar (SAR). An example is the combination of digital beamforming on receive in elevation with multi-aperture SAR signal reconstruction in azimuth ...
Moreira, Alberto +2 more
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Wavelet-Based Compressed Sensing for SAR Tomography of Forested Areas [PDF]
, 2012 Synthetic aperture radar (SAR) tomography is a 3-D imaging modality that is commonly tackled by spectral estimation techniques. Thus, the backscattered power along the cross-range direction can be readily obtained by computing the Fourier spectrum of a ...
Nannini, Matteo +2 more
core +1 more source
IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingIn order to resolve the conflict between high pulse repetition frequency (PRF) and wide-swath imaging in multiangle synthetic aperture radar (SAR), a multiangle imaging model combined with multiple-input multiple-output synthetic aperture radar (MIMO-SAR)
Fang Zhou +4 more
doaj +1 more source
Synthetic aperture sonar imaging using compressive sensing and an ultrasound transducer array [PDF]
, 2013 Includes bibliographical references.Compressive sensing (CS) also known as compressive sampling is a technique used to reconstruct or recover the full-length of a signal with only a few non-adaptive measurements.
Jideani, Josiah Chimnanu
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Remote SensingTidal marshes play a globally critical role in carbon and hydrologic cycles by sequestering carbon dioxide from the atmosphere and exporting dissolved organic carbon to connected estuaries.
Brian T. Lamb +3 more
doaj +1 more source
Staggered-SAR: A New Concept for High-Resolution Wide-Swath Imaging [PDF]
, 2012 Synthetic aperture radar (SAR) is the ideal sensor for the systematic observation of dynamic processes on the Earth’s surface. However, current SAR systems are limited, in that a wider coverage can only be achieved at the expense of a degraded azimuth ...
Villano, Michelangelo +2 more
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System Concepts for Bi- and Multi-Static SAR Missions [PDF]
, 2003 The performance and capabilities of bi- and multistatic spaceborne synthetic aperture radar (SAR) are analyzed. Such systems can be optimized for a broad range of applications like frequent monitoring, wide swath imaging, single-pass cross-track ...
Rodriguez Cassola, Marc +4 more
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Wavelet-Based Compressed Sensing for Polarimetric SAR Tomography [PDF]
, 2013 Tomographic synthetic aperture radar (SAR) imaging has been recently formulated in a wavelet-based compressed sensing (CS) framework. This paper reviews the underlying sparsity-driven algorithms for single-channel as well as polarimetric tomography, and ...
Nannini, Matteo +2 more
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A Downsamplable Inverse ERMA Method for Hybrid SAR-ISAR Imaging Framework of Maneuvering Ship Target
IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingFor radar imaging of the maneuvering ship target, the synthetic aperture radar-inverse mapping-inverse synthetic aperture radar (SAR-IM-ISAR) framework using range migration algorithm (RMA) suffers from high computational complexity in IM and ISAR ...
Zhixin Wu +7 more
doaj +1 more source
Moving Target Signals in High Resolution Wide Swath SAR [PDF]
, 2008 In this paper the impact of two high resolution wide swath synthetic aperture radar imaging techniques, extraction of signals from azimuth subsampled spectra and subpulse azimuth beamsteering on transmit, on ground moving target signals is analyzed ...
Krieger, Gerhard, Gabele, Martina
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