Results 71 to 80 of about 4,848 (220)

Bistatic SAR tomography: Processing and experimental results [PDF]

2010 IEEE International Geoscience and Remote Sensing Symposium, 2010
This paper presents across-track tomography applied to a bistatic geometry with fixed receivers. This kind of geometry can overcome some of the classical monostatic tomography limitations such as temporal decorrelation and irregular baseline distribution.
Duque Biarge, Sergio, López Dekker, Francisco J., Merlano Duncan, Juan Carlos, Mallorquí Franquet, Jordi Joan   +3 more
openaire   +2 more sources

SWOT Water Surface Elevation in Herbaceous Wetlands of Florida's Everglades

Geophysical Research Letters, Volume 52, Issue 9, 16 May 2025.
Abstract Observing water level variations in wetlands is important for tracking global water and carbon cycles. The Surface Water and Ocean Topography (SWOT) mission was launched to measure Earth's surface waters, but its performance in vegetated wetlands was unknown.
Solomon Kica, Tamlin M. Pavelsky, Jessica V. Fayne, Brent A. Williams   +3 more
wiley   +1 more source

A New Age of SAR: How Can Commercial Smallsat Constellations Contribute to NASA's Surface Deformation and Change Mission?

Earth and Space Science, Volume 12, Issue 1, January 2025.
Abstract In response to the 2017 Decadal Survey, NASA conducted a five‐year study on the Surface Deformation and Change (SDC) designated observable to study potential mission concepts. As part of the SDC mission study, the Commercial Synthetic Aperture Radar (ComSAR) subgroup was tasked with evaluating the current landscape of the SAR and ...
Stacey A. Huang, Batuhan Osmanoğlu, Bernd Scheuchl, Shadi Oveisgharan, Jeanne M. Sauber, MinJeong Jo, Ala Khazendar, Ekaterina Tymofyeyeva, Betsy Wusk, Arif Albayrak   +9 more
wiley   +1 more source

First bistatic spaceborne SAR experiments with TanDEM-X [PDF]

2011 IEEE International Geoscience and Remote Sensing Symposium, 2011
TanDEM-X is a high-resolution interferometric mission with the main goal of providing a global and unprecedentedly accurate digital elevation model (DEM) of the Earth surface by means of single-pass X-band SAR interferometry. Despite its usual quasi-monostatic configuration, TanDEM-X is the first genuinely bistatic SAR system in space.
Marc Rodriguez-Cassola, Pau Prats, Daniel Schulze, Nuria Tous-Ramon, Ulrich Steinbrecher, Luca Marotti, Matteo Nannini, Marwan Younis, Paco Lopez-Dekker, Paco López-Dekker, Manfred Zink, Andreas Reigber, Gerhard Krieger, Alberto Moreira   +13 more
openaire   +4 more sources

An ISAR target motion estimation algorithm based on a differential semblance criterion

Electronics Letters, Volume 61, Issue 1, January/December 2025.
This study presents a novel approach for improving rotational motion estimation in multistatic Inverse Synthetic Aperture Radar (ISAR) imaging through a Differential Semblance Optimization (DSO) criterion. By reducing discrepancies across images from multiple transmitter–receiver pairs, our method enables precise yaw rotation estimation and produces ...
D. P. Huxley, F. M. Watson, W. R. B. Lionheart   +2 more
wiley   +1 more source

Beam Footprint Detection and Tracking for Non-cooperative Bistatic SAR [PDF]

Radioengineering, 2016
In non-cooperative bistatic synthetic aperture radar (SAR), the position of transmitter’s beam footprint should be detected and tracked in real-time to perform beam synchronization.
F. Yan, W. Chang, X. Li, Q. Zhang
doaj  

SIGNAL: A Ka-band Digital Beam-Forming SAR System Concept to Monitor Topography Variations of Ice Caps and Glaciers [PDF]

, 2011
This paper discusses the implementation of an endto- end simulator for the BIOMASS mission. An overview of the system architecture is provided along with a functional description of the modules that comprise the ...
Börner, Thomas, Krieger, Gerhard, López-Dekker, Paco, Younis, Marwan   +3 more
core  

Geometric polarimetry - part II: the Antenna Height Spinor and the Bistatic Scattering Matrix [PDF]

, 2017
This paper completes the fundamental development of the basic coherent entities in Radar Polarimetry for coherent reciprocal scattering involving polarized wave states, antenna states and scattering matrices. The concept of antenna polarization states as
Bebbington, David, Carrea, Laura
core   +1 more source

Multistatic Synthetic Aperture Radar Autofocus for Back Projection Imaging of a Moving Target

Electronics Letters, Volume 61, Issue 1, January/December 2025.
This paper presents a new metric‐based autofocus approach, called Localised Threshold Sharpness (LTS), which employs Multistatic SAR data to localise and focus a target moving with up to six degrees of freedom motion on a real‐time, pulse‐by‐pulse basis.
Anmol Rattan, Daniel Andre, Mark Finnis
wiley   +1 more source

Ionospheric Faraday Rotation Angle Estimation for Bistatic Spaceborne SAR

Electronics Letters, Volume 61, Issue 1, January/December 2025.
This paper proposes a Faraday rotation angle estimation method for bistatic spaceborne SAR. The effectiveness of the method is verified through simulation experiments and the performance of the method is analysed. Under different SNR and filtering window sizes, the estimation error range is 0.02°–0.26°. ABSTRACT Bistatic synthetic aperture radar (SAR)
Kailun Zhang, Zhuo Li
wiley   +1 more source