Results 91 to 100 of about 151,553 (228)

Space-borne polarimetric SAR sensors or the golden age of radar polarimetry

open access: yesEPJ Web of Conferences, 2010
SAR Polarimetry represents an active area of research in Active Earth Remote Sensing. This interest is clearly supported by the fact that nowadays there exists, or there will exist in a very next future, a non negligible quantity of launched ...
Pottier E.
doaj   +1 more source

Calibration Issue in SMART Synthetic Aperture Radar Based on Scan-On-Receive [PDF]

open access: yes, 2009
A new spaceborne Synthetic Aperture Radar (SAR) system based on SCan-On-REceive (SCORE) algorithm has been recently proposed in order to overcome the trade-off between spatial resolution and swath wide of current SAR systems. The compound architecture of
Bordoni, Federica   +2 more
core  

Advanced Concepts for High-Resolution Wide-Swath SAR Imaging [PDF]

open access: yes, 2010
This paper reviews advanced multi-channel SAR system concepts for the imaging of wide swaths with high resolution. Several novel system architectures employing both direct radiating arrays and reflector antennas fed by a digital array are introduced ...
Patyuchenko, Anton   +6 more
core  

First 3-D reconstructions of target hidden beneath foliage by means of polarimetric SAR tomography [PDF]

open access: yes, 2012
SAR tomography (SARTom) is an imaging technique that allows multiple phase center separation in the vertical direction, leading to a 3-dimensional (3D) reconstruction of the imaged scene. Retrieval of volume structure information (e.g.
Rolf Scheiber   +7 more
core   +1 more source

Study on the System Design Scheme for Wide-Swath Spaceborne SAR Operating in the Frequency-Scanning Mode

open access: yesIEEE Access
Utilizing the frequency-dependent beam pointing characteristics of phased array antenna, frequency scanning (F-SCAN) spaceborne SAR can realize the smooth beam scanning from the far to the near edge of the observation scene.
Haifeng Yu, Ziyan Shen, Rui Man
doaj   +1 more source

Spatio-Temporal Matching of Moving Objects in Optical and SAR-Data [PDF]

open access: yes, 2007
We present an approach for spatio-temporal co-registration of dynamic objects in Synthetic Aperture Radar (SAR) and optical imagery. Goal of this work is the performance evaluation of vehicle detection and velocity estimation from SAR images when ...
Weihing, Diana   +3 more
core  

Interferometric Synthetic Aperture Radar (SAR) Missions Employing Formation Flying [PDF]

open access: yes, 2010
This paper presents an overview of single-pass interferometric Synthetic Aperture Radar (SAR) missions employing two or more satellites flying in a close formation.
Hajnsek, Irena   +4 more
core   +1 more source

A Novel Frequency Scanning Variable PRI Imaging Mode for Ultrawide Continuous Swath Spaceborne SAR Imaging

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Digital beamforming (DBF) technique in elevation and variable pulse repetition interval (PRI) technique in azimuth are used to achieve ultrawide continuous swath imaging in synthetic aperture radar (SAR).
Ruizhen Song   +4 more
doaj   +1 more source

Potential & challenges of polarimetric SAR interferometry techniques for forest parameter estimation in the context of the BIOMASS mission [PDF]

open access: yes, 2011
World forests contain a significant amount of carbon that is, in consequence of natural and human induced deforestation and regrowth processes, affected by rapid changes and therefore difficult to quantify in terms of biomass/carbon storage.
Papathanassiou, Kostas   +4 more
core  

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