Results 71 to 80 of about 103,839 (206)
A Framework for SAR-Optical Stereogrammetry over Urban Areas [PDF]
, 2018 Currently, numerous remote sensing satellites provide a huge volume of diverse earth observation data. As these data show different features regarding resolution, accuracy, coverage, and spectral imaging ability, fusion techniques are required to ...
Bagheri, Hossein +3 more
core +2 more sources
FMCW SAR Sparse Imaging Based on Approximated Observation: An Overview on Current Technologies
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020 Sparsity-driven synthetic aperture radar (SAR) imaging technique for frequency modulation continuous wave (FMCW) has already shown the superiority in terms of performance improvement in imaging and recovery from down-sampled data.
Hui Bi +5 more
doaj +1 more source
Quality assessment of despeckled SAR images
2011 IEEE International Geoscience and Remote Sensing Symposium, 2011 In this paper, a novel method for the quality assessment of despeckled SAR images is proposed. This method is based on the observation that the perceived quality of despeckled SAR images is not always appropriately described by classical statistical and deterministic parameters that are proposed in the literature. Various evaluations are performed here.
DELLEPIANE, SILVANA, ANGIATI, ELENA
openaire +5 more sources
Automatic refocus and feature extraction of single-look complex SAR signatures of vessels [PDF]
, 2016 In recent years, spaceborne synthetic aperture radar ( SAR) technology has been considered as a complement to cooperative vessel surveillance systems thanks to its imaging capabilities.
Mallorquí Franquet, Jordi Joan +1 more
core +2 more sources
A Review of Spaceborne High-Resolution Spotlight/Sliding Spotlight Mode SAR Imaging
Remote SensingSpotlight/sliding spotlight modes can achieve higher resolution than the other imaging modes and are widely used in object detection and recognition applications.
Baolong Wu, Chengjin Liu, Jianlai Chen
doaj +1 more source
Research Progress on Three-dimensional SAR Imaging Techniques
Leida xuebao, 2018 Conventional Synthetic Aperture Radar (SAR) moves along a straight line and forms a linear synthetic apertures. It can only obtain the two-dimensional (2-D) image of illuminated scene that is the projection of the three-dimensional (3-D) real scene onto ...
Hong Wen +4 more
doaj +1 more source
A High-Order Imaging Algorithm for High-Resolution Space-Borne SAR Based on a Modified Equivalent Squint Range Model [PDF]
, 2015 Two challenges have been faced in signal processing of ultrahigh-resolution spaceborne synthetic aperture radar (SAR). The first challenge is constructing a precise range model, and the second one is to develop an efficient imaging algorithm since ...
Chen, J. +4 more
core +2 more sources
Algorithms, 2016 This paper investigates a structured sparse SAR imaging algorithm for point scattering model based on tensor decomposition. Several SAR imaging schemes have been developed by researchers for improving the imaging quality.
Yu-Fei Gao +4 more
doaj +1 more source
Region-enhanced passive radar imaging [PDF]
, 2005 The authors adapt and apply a recently-developed region-enhanced synthetic aperture radar (SAR) image reconstruction technique to the problem of passive radar imaging.
Cetin, Mujdat +2 more
core +1 more source
Remote Sensing, 2019 Research on real-time spaceborne synthetic aperture radar (SAR) imaging has emerged as satellite computation capability has increased and applications of SAR imaging products have expanded.
Xiaoyu Yan +3 more
doaj +1 more source