Results 31 to 40 of about 195,296 (230)

Fast Matrix Inversion and Determinant Computation for Polarimetric Synthetic Aperture Radar [PDF]

open access: yesComputers and Geosciences, no. 119 (2018), pages 109-114, 2018
This paper introduces a fast algorithm for simultaneous inversion and determinant computation of small sized matrices in the context of fully Polarimetric Synthetic Aperture Radar (PolSAR) image processing and analysis. The proposed fast algorithm is based on the computation of the adjoint matrix and the symmetry of the input matrix.
arxiv   +1 more source

Experimental Results of High-Resolution ISAR Imaging of Ground-Moving Vehicles with a Stationary FMCW Rada [PDF]

open access: yes, 2015
In the paper experimental results of ISAR (Inverse Synthetic Aperture Radar) processing obtained with highresolution radar are presented. Targets under observation were ground moving vehicles, such as cars, trucks and tractors.
Gromek, Artur   +5 more
core   +1 more source

Low cost passive radar through software defined radio [PDF]

open access: yes, 2016
Passive radars utilise existing terrestrial radio signals, such as those produced by radio or television stations, to track objects within their range. This project aims to determine the suitability of low cost USB TV tuners as hardware receivers for a ...
Ryan, M. J.
core  

Illuminating the Arctic: Unveiling seabird responses to artificial light during polar darkness through citizen science and remote sensing

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Artificial light at night (ALAN) has global impacts on animals, yet its effects in polar regions remain underexplored. In this study, we analyzed a decade of citizen science data on seabird occurrences in Longyearbyen, using remote sensing data to assess the impact of ALAN during the polar night.
Kaja Balazy   +3 more
wiley   +1 more source

Radar Fields: An Extension of Radiance Fields to SAR [PDF]

open access: yesarXiv, 2023
Radiance fields have been a major breakthrough in the field of inverse rendering, novel view synthesis and 3D modeling of complex scenes from multi-view image collections. Since their introduction, it was shown that they could be extended to other modalities such as LiDAR, radio frequencies, X-ray or ultrasound. In this paper, we show that, despite the
arxiv  

Three Dimensional Inverse Synthetic Aperture Radar Imaging [PDF]

open access: yes, 1995
This research investigates the generation, display, and interpretation of three-dimensional (3-D) Synthetic Aperture Radar images. Three-dimensional assumes that the data collected consists of one temporal dimension and two orthogonal angular dimensions.
Pullis, Jack D.
core   +1 more source

An improved inverse synthetic aperture radar range alignment method based on maximum contrast

open access: yesJurnal Engineering, 2019
Inverse synthetic aperture radar (ISAR) is an important tool for non-cooperative ship imaging, and one key step of ISAR imaging is range alignment. To achieve the range alignment with high precision, efficiency and robustness, an improved ISAR range ...
Yong Li   +4 more
semanticscholar   +1 more source

Monitoring of a multi‐span prestressed concrete bridge using satellite interferometric data and comparison with on‐site sensor results

open access: yesStructural Concrete, EarlyView.
Abstract Satellite‐based Synthetic Aperture Radar Interferometry (InSAR) represents a promising supplement to traditional Structural Health Monitoring (SHM) methods, offering a non‐invasive solution that eliminates the need for sensor installations and provides extensive spatial coverage.
Pier Francesco Giordano   +7 more
wiley   +1 more source

Graph Based Imaging for Synthetic Aperture Radar [PDF]

open access: yes, 2018
In this paper, we propose graph signal processing based imaging for synthetic aperture radar. We present a modified version of fused least absolute shrinkage and selection operator to cater for graph structure of the radar image. We solve the cost function via alternating direction method of multipliers.
arxiv   +1 more source

Spherical wave near-field imaging and radar cross-section measurement [PDF]

open access: yes, 1998
The paper presents a new inverse synthetic aperture radar (ISAR) algorithm intended for radar cross-section (RCS) imaging and measurement from scattered fields.
Broquetas Ibars, Antoni   +3 more
core   +2 more sources

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