Results 11 to 20 of about 123,753 (301)
Efficient 2D adaptive beamforming algorithm based on sparse array optimisation
The Journal of Engineering, 2019 In this study, a 2D adaptive beamforming algorithm for sparse array is proposed. Firstly, a signal model based on matrix completion theory for adaptive beamforming in sparse array is established, which is proved to satisfy null space property.
Chaoyu Wang +3 more
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A PROPOSED FRAMEWORK TO UNMIX SCATTERING MECHANISMS OF POLARIMETRIC RADAR IMAGES USING VERY HIGH RESOLUTION OPTICAL IMAGES [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012 A new approach has been proposed for radar and optical image fusion. Candidate images for fusion are polarimetric radar images and very high resolution stereoscopic optical images.
S. Giordano, G. Mercier, J.-P. Rudant
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International Journal of Applied Earth Observations and Geoinformation, 2021 Both radar and optical signals are sensitive to the change of surface soil moisture (SSM) and surface roughness properties (such as root mean squared height- RMSH), and the accuracy of retrieved SSM from single radar and optical remote sensing data is ...
Xingming Zheng +7 more
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IEEE Access, 2019 In a distributed multiple-radar architecture, the spatial scattering properties of targets can be utilized to counter active deception jamming effectively.
Qiang Li +5 more
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Optical Simulation of Radar Resolution*† [PDF]
Journal of the Optical Society of America, 1959 It is difficult and expensive to evaluate with radar equipment the resolution required in order that a given target be detectable. In an effort to obtain this information more cheaply and easily, an optical simulator has been constructed in which the very high resolution in an optical aerial photograph has been degraded by known amounts.
Rawcliffe, R.D. +2 more
openaire +1 more source
Estimation of aboveground biomass using optical and radar images (Case study: Nav-e Asalem forests, Gilan) [PDF]
تحقیقات جنگل و صنوبر ایران, 2017 Using remote sensing data is an applied method to estimate above ground biomass. In this study, satellite radar data of ALOS-2, with the full polarization and the optical data of Sentinel-2, has been used to estimate the aboveground biomass in the Nav-e ...
Sasan Vafaei +4 more
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Quantifying oil palm expansion in Southeast Asia from 2000 to 2015: A data fusion approach
Journal of Land Use Science, 2022 The fusion of optical imagery with radar data can provide more accurate land cover change analysis of deforestation and tree-based agriculture. Radar data is limited temporally with most geographic areas not covered prior to 2007.
Melissa Wagner +2 more
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LIGHTCAM: ENLIGHTENING THE CAMERA OBSCURA – WHERE PHOTOGRAMMETRY, COMPUTER AND ROBOTIC VISION MEET [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020 In the last years, vision-based systems have flourished at an unprecedented pace, fuelled by developments in hardware components (higher resolution and higher sensitivity imaging sensors, smaller and smarter micro controllers, just to name a few), as ...
E. Nocerino, F. Menna, R. Hänsch
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High-speed optical synthetic aperture radar target recognition system
The Journal of Engineering, 2019 With the development of synthetic aperture radar (SAR), it is more and more important to recognise the image obtained by SAR. SAR is a useful tool for geoscience and remote sensing, and there are a large amount of SAR images and products.
Baozhang Yang +4 more
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Quantum Illumination at the Microwave Wavelengths [PDF]
, 2015 Quantum illumination is a quantum-optical sensing technique in which an entangled source is exploited to improve the detection of a low-reflectivity object that is immersed in a bright thermal background.
Barzanjeh, Shabir +5 more
core +4 more sources