Articles with "full aperture" as a keyword



An Efficient Full-Aperture Approach for Airborne Spotlight SAR Data Processing Based on Time-Domain Dealiasing

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Published in 2022 at "IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing"

DOI: 10.1109/jstars.2022.3158496

Abstract: The two-step approach (TSA) is an efficient full-aperture method to solve the Doppler spectrum aliasing when processing data acquired by a synthetic aperture radar (SAR) system operating in beam steering mode. This simple approach solves… read more here.

Keywords: full aperture; aperture; airborne spotlight; efficient full ... See more keywords

DAF-Net: Dual-Aperture Feature Fusion Network for Aircraft Detection on Complex-Valued SAR Image

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Published in 2025 at "IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing"

DOI: 10.1109/jstars.2025.3549134

Abstract: Aircraft detection in synthetic aperture radar (SAR) images plays a crucial role in supporting essential tasks, such as airport management and airspace monitoring. Most of the existing SAR aircraft detection algorithms are predominantly designed based… read more here.

Keywords: aperture; full aperture; aircraft; daf net ... See more keywords

Interferometry With ALOS-2 Full-Aperture ScanSAR Data

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Published in 2017 at "IEEE Transactions on Geoscience and Remote Sensing"

DOI: 10.1109/tgrs.2017.2653190

Abstract: Advanced Land Observing Satellite-2 (ALOS-2) is designed to routinely acquire both scanning synthetic aperture radar (ScanSAR) and stripmap data. In this paper, we present a special multiband bandpass filter (MBF) to remove azimuth nonoverlap spectra… read more here.

Keywords: scansar; full aperture; interferometry; alos full ... See more keywords

Nonparametric Full-Aperture Autofocus Imaging for Microwave Photonic SAR

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Published in 2024 at "IEEE Transactions on Geoscience and Remote Sensing"

DOI: 10.1109/tgrs.2024.3411392

Abstract: The microwave photonic synthetic aperture radar (SAR) is capable of realizing large scene remote sensing observation with centimeter or even millimeter resolution, which greatly enhances the ability to acquire target information. A key issue in… read more here.

Keywords: aperture; full aperture; sar; microwave photonic ... See more keywords
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Enhancing parameter design for full-aperture rapid planar polishing based on fuzzy optimization.

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Published in 2021 at "Applied optics"

DOI: 10.1364/ao.426283

Abstract: Full-aperture rapid planar polishing (RPP) has been widely used in optics manufacturing for high-power laser systems. A new, to the best of our knowledge, fuzzy optimization method was presented to assess the precision and productivity… read more here.

Keywords: full aperture; rapid planar; aperture rapid; fuzzy optimization ... See more keywords

Efficient full-aperture mirror polishing method with variable orbital radius in computer-controlled optical surfacing.

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Published in 2024 at "Optics express"

DOI: 10.1364/oe.523657

Abstract: Optical systems in astronomy have extremely high requirements on the full-aperture surface precision and fabrication efficiency of aspherical mirrors. However, the current full-aperture optics fabrication method suffers from both fabrication and computation inefficiency. The former… read more here.

Keywords: mirror polishing; aperture; method; full aperture ... See more keywords

Investigation on the Full-Aperture Diffraction Efficiency of AOTF Based on Tellurium Dioxide Crystals

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Published in 2025 at "Photonics"

DOI: 10.3390/photonics12040335

Abstract: The influence of acoustic field distribution and temperature variations on the full-aperture diffraction efficiency of non-collinear acousto-optic tunable filters (AOTFs) was investigated based on tellurium dioxide crystals. The strong acoustic anisotropy of the crystal induces… read more here.

Keywords: full aperture; diffraction efficiency; efficiency; aperture diffraction ... See more keywords