Frequency-Scaling-Based Spaceborne Squint SAR Sparse Imaging
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing"
DOI: 10.1109/jstars.2022.3204539
Abstract: In synthetic aperture radar (SAR), due to the characteristics of squint data in spaceborne imaging geometry, a more accurate range cell migration correction operation is necessary. Furthermore, imaging degradation due to ignoring range-variant filtering needed… read more here.
Keywords: squint; spaceborne squint; squint sar; sar sparse ... See more keywords
Generalized BP-InSAR Processing With High-Squint Geometry
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Geoscience and Remote Sensing Letters"
DOI: 10.1109/lgrs.2022.3152452
Abstract: Most of the interferometric synthetic aperture radars (InSARs) operate in zero-squint or low-squint geometry. A spatial phase ramp in focused squint SAR images leads to a higher demand for coregistration, which limits the application of… read more here.
Keywords: squint; processing high; squint geometry; geometry ... See more keywords
Phase Bias Estimation and Imaging for High-Squint Multichannel SAR in Azimuth
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Geoscience and Remote Sensing Letters"
DOI: 10.1109/lgrs.2023.3254898
Abstract: High-squint multichannel synthetic aperture radar (SAR) in azimuth can overcome the constraint of minimum antenna area in the traditional single-channel classical SAR system, and thereby it would be much more flexible to achieve high-resolution and… read more here.
Keywords: squint; phase bias; squint multichannel; multichannel sar ... See more keywords
Downlink multi-user algorithms for millimeter-wave wideband linear arrays on PD-NOMA-based squint steering beams
Sign Up to like & getrecommendations! Published in 2021 at "EURASIP Journal on Advances in Signal Processing"
DOI: 10.1186/s13634-021-00772-0
Abstract: This article investigates using a phased linear antenna array instead of the planar array to circumvent the problem that two frequency squint steering main beams cannot cover any two beam directions simultaneously. First, we approximate… read more here.
Keywords: squint steering; array; main beam; linear array ... See more keywords
Squint-looking differential synthetic aperture ladar: signal processing and experimental demonstration.
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DOI: 10.1364/ao.59.000129
Abstract: Squint-looking differential synthetic aperture ladar (DSAL) is reported with detailed signal processing mathematics and high-resolution experimental demonstrations. Based on the DSAL principle and standard squint-looking synthetic aperture radar theory, the data processing procedures on squint-looking… read more here.
Keywords: processing; squint; dsal; squint looking ... See more keywords