Results 31 to 40 of about 212,348 (364)
Ocean Wave Inversion Based on Hybrid Along- and Cross-Track Interferometry
Remote Sensing, 2022 The hybrid interferometric synthetic aperture radar system is a combination of an along-track configuration and cross-track configuration. Based on linear ocean wave theory, an ocean wave inversion algorithm for a hybrid interferometric synthetic ...
Daozhong Sun +7 more
doaj +1 more source
A C-Band Fully Polarimetric Automotive Synthetic Aperture Radar [PDF]
, 2021 Due to the rapid increase in 76 GHz automotive spectrum use in recent years, wireless interference is becoming a legitimate area of concern. However, the recent rise in interest of automated vehicles (AVs) has also spurred new growth and adoption of low frequency vehicle-to-everything (V2X) communications in and around the 5.8 GHz unlicensed bands ...
arxiv +1 more source
Compressed Synthetic Aperture Radar [PDF]
IEEE Journal of Selected Topics in Signal Processing, 2010 In this paper, we introduce a new synthetic aperture radar (SAR) imaging modality which can provide a high-resolution map of the spatial distribution of targets and terrain using a significantly reduced number of needed transmitted and/or received electromagnetic waveforms.
Rama Chellappa +3 more
openaire +2 more sources
Inundation Extent Mapping by Synthetic Aperture Radar: A Review
Remote Sensing, 2019 Recent flood events have demonstrated a demand for satellite-based inundation mapping in near real-time (NRT). Simulating and forecasting flood extent is essential for risk mitigation. While numerical models are designed to provide such information, they
Xinyi Shen +4 more
semanticscholar +1 more source
Four-dimensional SAR Imaging Algorithm Based on Iterative Reconstruction of Magnitude and Phase
Leida xuebao, 2016 Observation data obtained from the Four-Dimensional (4D) Synthetic Aperture Radar (SAR) system is sparse and non-uniform in the baseline-time plane. Hence, the imaging results acquired by traditional Fourier-based methods are limited by high side lobes ...
Ren Xiaozhen, Yang Ruliang
doaj +1 more source
3D Near-Field Virtual MIMO-SAR Imaging Using FMCW Radar Systems at 77 GHz [PDF]
arXiv, 2022 In this paper, we present 3D high resolution radar imaging at millimeter-Wave (mmWave) frequencies by means of a combination of virtual Multiple Input Multiple Output (MIMO) Frequency Modulated Continuous Wave (FMCW) Radars and Synthetic Aperture Radar (SAR) which results in a compact, low-cost, and high-speed 3D mmWave imagery system with low ...
arxiv
Multi‐temporal synthetic aperture radar flood mapping using change detection
, 2018 A change detection and thresholding methodology has been adapted from previous studies to determine the extent of flooding for 13 Sentinel‐1 synthetic aperture radar images captured during the floods of winter 2015–2016 in Yorkshire, UK.
M. Clement, C. Kilsby, P. Moore
semanticscholar +1 more source
Hybrid Dual-Polarization Synthetic Aperture Radar
Remote Sensing, 2019 Compact polarimetry for a synthetic aperture radar (SAR) system is reviewed. Compact polarimetry (CP) is intended to provide useful polarimetric image classifications while avoiding the disadvantages of space-based quadrature-polarimetric (quad-pol) SARs.
R. Keith Raney
doaj +1 more source
GEOREFERENCING ON SYNTHETIC APERTURE RADAR IMAGERY [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015 Due to the SAR1 geometry imaging, SAR images include geometric distortions that would be erroneous image information and the images should be geometrically calibrated.
M. Esmaeilzade, J. Amini, S. Zakeri
doaj +1 more source
Tunable high-resolution synthetic aperture radar imaging [PDF]
, 2022 We have recently introduced a modification of the multiple signal classification (MUSIC) method for synthetic aperture radar. This method depends on a tunable, user-defined parameter, $\epsilon$, that allows for quantitative high-resolution imaging. It requires however, relative large single-to-noise ratios (SNR) to work effectively. Here, we
arxiv +1 more source