Grating lobes suppression by adding virtual receiving subaperture in synthetic aperture imaging
Sign Up to like & getrecommendations! Published in 2017 at "Ultrasonics"
DOI: 10.1016/j.ultras.2016.12.013
Abstract: HighlightsThe grating lobes suppression by the virtual reception in ultrasound imaging.The theoretical model explains the properties of virtual reception subaperture.The quality of the images is comparable with synthetic aperture reconstruction. Abstract A method of suppression… read more here.
Keywords: suppression; vrs; grating lobes; aperture ... See more keywords
High-Resolution Real-Time Imaging Processing for Spaceborne Spotlight SAR With Curved Orbit via Subaperture Coherent Superposition in Image Domain
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.2022.3150025
Abstract: With the increasing of application requirements, the high-resolution real-time imaging processing of the spaceborne spotlight synthetic aperture radar (SAR) has been developed. Since the traditional real-time imaging algorithms have the problems that the range model… read more here.
Keywords: time; subaperture; curved orbit; resolution ... See more keywords
Subaperture Keystone Transform Matched Filtering Algorithm and Its Application for Air Moving Target Detection in an SBEWR System
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing"
DOI: 10.1109/jstars.2023.3245295
Abstract: Long-time coherent integration is an effective approach to improve detection performance for weak air moving targets (AMTs). The range position variation and azimuth Doppler variation will easily exceed range gate and Doppler resolution in a… read more here.
Keywords: subaperture; performance; air moving; detection ... See more keywords
Moving Ship Velocity Estimation Using TanDEM-X Data Based on Subaperture Decomposition
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Geoscience and Remote Sensing Letters"
DOI: 10.1109/lgrs.2018.2846399
Abstract: In this letter, a velocity estimation method for moving ships in synthetic aperture radar (SAR) images is proposed based on a subaperture decomposition technique. In contrast to traditional methods, our method needs only a few… read more here.
Keywords: subaperture; subaperture decomposition; based subaperture; velocity estimation ... See more keywords
Wide-Angle CSAR Imaging Based on the Adaptive Subaperture Partition Method in the Terahertz Band
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Terahertz Science and Technology"
DOI: 10.1109/tthz.2017.2781462
Abstract: Based on the assumption of isotropic scattering, a wider angle aperture can provide improved resolution of synthetic aperture radar images. However, due to the limited angular persistence of scatterers for high-resolution terahertz radar, traditional imaging… read more here.
Keywords: wide angle; adaptive subaperture; csar; subaperture partition ... See more keywords
Modeling the hydrodynamic impact on the tool influence function during hemispherical subaperture optical polishing.
Sign Up to like & getrecommendations! Published in 2022 at "Applied optics"
DOI: 10.1364/ao.456349
Abstract: To fabricate high-precision and accurate optics relative to the optical design surface, a high level of deterministic control of material removal (i.e., the tool influence function, TIF) during subaperture tool polishing is required. In this… read more here.
Keywords: influence function; tool; tool influence; subaperture ... See more keywords