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Five decades of radioglaciology

Dustin M. Schroeder, Robert G. Bingham, Donald D. Blankenship, Knut Christianson, Olaf Eisen, Gwenn E. Flowers, Nanna B. Karlsson, Michelle R. Koutnik, John D. Paden, Martin J. Siegert
2020 Annals of Glaciology  
Planetary radar sounders have observed, or are planned to observe, the subsurfaces and near-surfaces of Mars, Earth's Moon, comets and the icy moons of Jupiter.  ...  Radar sounding is a powerful geophysical approach for characterizing the subsurface conditions of terrestrial and planetary ice masses at local to global scales.  ...  We would also like to thank Joe MacGregor and two anonymous reviewers for their thoughtful feedback on the manuscript.  ... 
doi:10.1017/aog.2020.11 fatcat:2ozs3qgvrjbqrl5263rpdceoni

Bed topography of Jakobshavn Isbræ, Greenland, and Byrd Glacier, Antarctica

S. Gogineni, J.-B. Yan, J. Paden, C. Leuschen, J. Li, F. Rodriguez-Morales, D. Braaten, K. Purdon, Z. Wang, W. Liu, J. Gauch
2014 Journal of Glaciology  
We then applied array and image-processing algorithms to extract the weak bed echoes buried in off-vertical scatter (cross-track surface clutter).  ...  Unmanned aerial systems equipped with radars that can be flown over lines spaced as close as 5 m apart in the cross-track direction to synthesize a two-dimensional aperture would be ideal for collecting  ...  SAR processing enables the synthesis of a narrow beam to reduce surface clutter in the along-track direction, and the cross-track array enables advanced array processing to reduce surface clutter in the  ... 
doi:10.3189/2014jog14j129 fatcat:hmv6pd6rcfaszjlx2jo64plsde

EnVision: understanding why our most Earth-like neighbour is so different [article]

Richard Ghail, Colin Wilson, Thomas Widemann, Lorenzo Bruzzone, Caroline Dumoulin, Jörn Helbert, Robbie Herrick, Emmanuel Marcq, Philippa Mason, Pascal Rosenblatt, Ann Carine Vandaele, Louis-Jerome Burtz
2017 arXiv   pre-print
radar, IR and UV spectrometers to map volcanic gases, and by geodetic investigations.  ...  This document is the EnVision Venus orbiter proposal, submitted in October 2016 in response to ESA's M5 call for Medium-size missions for its Science Programme, for launch in 2029.  ...  Compared to VERITAS, EnVision will carry an expanded version of VEM with two additional channels VEM-H and VEM-U.  ... 
arXiv:1703.09010v1 fatcat:pb7plb4mtzesxmmwvuvleylwsu

2019 Index IEEE Transactions on Geoscience and Remote Sensing Vol. 57

2019 IEEE Transactions on Geoscience and Remote Sensing  
., Refo-cusing and Zoom-In Polar Format Algorithm for Curvilinear Spotlight SAR Imaging on Arbitrary Region of Interest; TGRS Oct. 2019 7995-8010 Hu, T., see Kang, Z., TGRS Jan. 2019 181-193 Hu, T.,  ...  ., +, TGRS Aug. 2019 6130-6144 An Approach to the Simulation of Radar Sounder Radargrams Based on Geological Analogs.  ...  ., +, TGRS May 2019 2920-2938 An Automatic Method for Subglacial Lake Detection in Ice Sheet Radar Sounder Data.  ... 
doi:10.1109/tgrs.2020.2967201 fatcat:kpfxoidv5bgcfo36zfsnxe4aj4

2012 Index IEEE Transactions on Geoscience and Remote Sensing Vol. 50

2012 IEEE Transactions on Geoscience and Remote Sensing  
., +, TGRS Feb. 2012 538-552 Moving-Target Tracking in Single-Channel Wide-Beam SAR.  ...  Nagarajan, K., +, TGRS Nov. 2012 4279-4291 Moving-Target Tracking in Single-Channel Wide-Beam SAR.  ...  Radar resolution A Novel Method for Imaging of Group Targets Moving in a Formation. Bai, X., +, TGRS Jan. 2012  ... 
doi:10.1109/tgrs.2012.2229656 fatcat:hjrotpfsqzhxlnnme27ftv33cu

Synthetic-aperture radar imaging

C J Oliver
1989 Journal of Physics D: Applied Physics  
The the maximum cross-track distance to an image pixel must be less than or equal to km 1 from the radar.  ...  Finally, the eight receive channels are multiplexed onto two channels and passed to one of the two receivers.  ...  The filter coefficients for the f-k migration algorithm are then generated in an iterative manner by finding the transfer function matrix for each layer and then multiplying these together.  ... 
doi:10.1088/0022-3727/22/7/001 fatcat:6oelp7teyzdcteyp2hh22pqibe

Table of Contents

2020 2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting  
Reddy, Altair; United States TU-A4.1A.I: MONOSTATlC RADAR CROSS SECTION SIMULATION OF SMALL UN MANNED AERIAL 1101 VEHICLES IN UHF BAND Dihia Sidi Ahmed, Laetitia Thirion-Lefevre, Regis Guinvarch,  ...  State University, United States TU-SP.2A.2: A DUAL-AXIS INTERFEROMETRIC RADAR FOR INSTANTANEOUS 2D ANGULAR 1661 VELOCITY MEASUREMENT Jason Merlo, Eric Klinefelter, Jeffrey A.  ... 
doi:10.1109/ieeeconf35879.2020.9330334 fatcat:7evmcvxz3bbjzi2rx3tftbbdje

Self-Organized Evolutionary Process in Sets of Interdependent Variables near the Midpoint of Phase Transition in K-Satisfiability [chapter]

Michael Korkin
2001 Lecture Notes in Computer Science  
Ackerman, John T Strategic Studies Quarterly: An Air Force-Sponsored Strategic Forum for Military, Government, and Academic Professionals. Volume 2, Number 1 -7 Acuff, Hugh F  ...  2) Foliage clutter modeling using narrowband and UWB radars; 3) A propagation Environment Modeling in Foliage using UWB radars; 4) Target detection in foliage using short-time Fourier transform and UWB  ...  However, long-range surface vessel detection is often confounded by radar clutter comprising echoes from the ionospheric plasma.  ... 
doi:10.1007/3-540-45443-8_20 fatcat:ght26tu6avh57kkp54kifofaee

95/00921 Proceedings of the Third Atmospheric Radiation Measurement (ARM) Science Team Meeting

1995 Fuel and Energy Abstracts  
On the simulation of regional climate using a limited area model nested in a general circulationmodel. This work has been supported by the U.S. Department of J.  ...  VHF Doppler radar determination of the of vertical momentum fluxes in the troposphere by the momentum flux in the upper troposphere and lower Flatland VHF radar.  ...  detect differences in the inhomogeneous terrain?  ... 
doi:10.1016/0140-6701(95)96176-3 fatcat:jw2clcgn6vbibnzxdrzrojru6i

Interferometric Synthetic Aperture Sonar Design and Performance [article]

Philip John Barclay, University Of Canterbury
2008
The InSAS approach is similar to the radar equivalent (InSAR), however, significant differences in geometry and medium properties limit the applicability of InSAR algorithms to the sonar equivalent.  ...  Presented in this thesis is an analysis of coherence as applicable to an InSAS system.  ...  Forming an interferogram from broadband SAS data results in a phase-map of random phase, as seen in Figure 2 Time-domain cross correlation A time domain cross correlation can be used to estimate the  ... 
doi:10.26021/3317 fatcat:rzjjwauzlna2ph74nqbsfpb7eu

Melting and deformation of the Ross Ice Shelf, Antarctica, by Multi-Year Phase Sensitive Radio Echo Sounding [article]

Joseph A. Snodgrass, University Of Canterbury
2021
Antarctic ice shelves are an important part of the Antarctic ice sheet system, holding back the grounded ice front from accelerating onto the ocean and contributing to sea level rise.  ...  The oceans in the ice shelf cavity remain some of the most unexplored places in the world with only a few observations.  ...  The amount of basal melting at each location is shown in map view and as a cross-section in Figure 23 . At two sites, T19 and T17, likely basal freezing was detected.  ... 
doi:10.26021/11366 fatcat:b5pxtuizrzgbvb7btyf3qq2jx4