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Focused synthetic aperture radar processing of ice-sounder data collected over the Greenland ice sheet

J.J. Legarsky, S.P. Gogineni, T.L. Akins
2001 IEEE Transactions on Geoscience and Remote Sensing  
We developed a synthetic aperture radar (SAR) processing algorithm for airborne/spaceborne ice-sounding radar systems and applied it to data collected in Greenland.  ...  Moreover, these ice-thickness measurements have been used for improving mass-balance estimates of the Greenland ice sheet.  ...  Asrar of the National Aeronautics and Space Administration, Washington, DC, for supporting this research. They also wish to thank all those who helped and supported in the Greenland airborne  ... 
doi:10.1109/36.957274 fatcat:jm4ewogu35gevnchvkpeuerpmy

A spatially selective approach to Doppler estimation for frame-based satellite SAR processing

I.G. Cumming
2004 IEEE Transactions on Geoscience and Remote Sensing  
He has been involved in the algorithm design of the digital SAR processors for SEASAT, SIR-B, ERS-1/2, J-ERS-1, and RADARSAT, as well as several airborne radar systems.  ...  The method is tested with RADARSAT-1 and Shuttle Radar Topography Mission X-band SAR (SRTM/X-SAR) spaceborne data and is found to work well with scenes that do have radiometric anomalies, and in scenes  ...  Hawkins (Canada Centre for Remote Sensing), who also provided the RADARSAT data for the study. The author is also grateful to K. Magnussen, B. Robertson, and F.  ... 
doi:10.1109/tgrs.2004.825577 fatcat:2l5wccgkhnggtknzb6adqlsg4m

Sea Surface Imaging with a Shortened Delayed-Dechirp Process of Airborne FMCW SAR for Ocean Monitoring on Emergency

Ji-hwan Hwang, Duk-jin Kim
2020 Sensors  
Raw data acquired through flight experiments were reconstructed to SAR image by the range-doppler algorithm.  ...  A sea surface imaging technique for an emergency response using a ready-made frequency modulated continuous wave–synthetic aperture radar (FMCW SAR) system and its experimental results are described in  ...  Acknowledgments: We thank the LIG Nex1 for supporting the airborne experiment. Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/s20247310 pmid:33352706 fatcat:rxwzisptuvcplggjp4ltqjddcq

The Danish SAR system: design and initial tests

S.N. Madsen, E.L. Christensen, N. Skou, J. Dall
1991 IEEE Transactions on Geoscience and Remote Sensing  
The data processing system, developed for the image generation and quality assurance, will be sketched, with special emphasis on the flexibility of the system.  ...  In January 1986 the design of a high-resolution airborne C-band Synthetic Aperture Radar (SAR) started at the Electromagnetics Institute of the Technical University of Denmark.  ...  It is easily shown that an altitude error of A h will give rise to an angle error A 0 given by: AR = n' A h R sin OLos' A 0 = It is seen that for satellite simulation underflights where the angle of incidence  ... 
doi:10.1109/36.79432 fatcat:clqlpfqyxjf2peyzubts6frvdu

MirrorSAR: An HRWS Add-On for Single-Pass Multi-Baseline SAR Interferometry

Josef Mittermayer, Gerhard Krieger, Allan Bojarski, Mariantonietta Zonno, Michelangelo Villano, Muriel Pinheiro, Markus Bachmann, Stefan Buckreuss, Alberto Moreira
2021 IEEE Transactions on Geoscience and Remote Sensing  
This paper reports the Phase A study results of the interferometric extension of the High-Resolution Wide-Swath (HRWS) mission with three MirrorSAR satellites.  ...  The predicted performance of the global Digital Elevation Model (DEM) is improved by one order of magnitude compared to presently available global DEM products like the TanDEM-X DEM.  ...  For more information, see  ... 
doi:10.1109/tgrs.2021.3132384 fatcat:gk3trb4735eczf44t7raxxtzjq

Features of point clouds synthesized from multi-view ALOS/PRISM data and comparisons with LiDAR data in forested areas

Wenjian Ni, Kenneth Jon Ranson, Zhiyu Zhang, Guoqing Sun
2014 Remote Sensing of Environment  
For stereo images with global coverage but coarse resolution new analysis methods need to be used.  ...  LiDAR waveform data from airborne LiDAR scanners (ALS) e.g. the Land Vegetation and Ice Sensor (LVIS) have been successfully used for estimation of forest height and biomass at local scales and have become  ...  Balzter, Rowland, and Saich (2007) used X-band and L-band InSAR data acquired by E-SAR airborne sensors to estimate the top heights of forest stands.  ... 
doi:10.1016/j.rse.2014.04.001 fatcat:tp5iugw65betjahce2zh66mc44

Review article: Geometric processing of remote sensing images: models, algorithms and methods

T. Toutin
2004 International Journal of Remote Sensing  
The geometric processing of remote sensing images becomes a key issue in multi-source data integration, management and analysis for many geomatic applications.  ...  This paper first reviews the source of geometric distortions, compares the different mathematical models being currently used for geometric distortion modelling, details the algorithms, methods and processing  ...  ) achieved good results because the images were acquired with near-nadir viewing angles over a flat terrain.  ... 
doi:10.1080/0143116031000101611 fatcat:l2da4ge4abdtvaro5a67py4k24

Interferometric alignment of the X-SAR antenna system on the space shuttle radar topography mission

D. Geudtner, M. Zink, C. Gierull, S. Shaffer
2002 IEEE Transactions on Geoscience and Remote Sensing  
As a result, a so-called "relaxing" factor is derived, which increases the limit for the difference in antenna azimuth angle with respect to the requirement on spectral overlap, and hence spatial interferogram  ...  additional height error.  ...  Basler, who were at the X-SAR radar data analyzer (RDA) position in the Payload Operations Control Center responsible for processing the X-SAR downlink data during the mission. Finally, they thank R.  ... 
doi:10.1109/tgrs.2002.1010887 fatcat:laur74zehfdflnqqpe3izcfzfq

Polarimetric retrievals of surface and cirrus clouds properties in the region affected by the Deepwater Horizon oil spill

Matteo Ottaviani, Brian Cairns, Jacek Chowdhary, Bastiaan Van Diedenhoven, Kirk Knobelspiesse, Chris Hostetler, Rich Ferrare, Sharon Burton, John Hair, Michael D. Obland, Raymond Rogers
2012 Remote Sensing of Environment  
Although the results presented for the surface are essentially unaffected, we discuss the results obtained by typing algorithms in sorting the complex mix of aerosol types, and show evidence of oriented  ...  , including an accurate estimate of aerosol optical depth.  ...  a contract with NASA.  ... 
doi:10.1016/j.rse.2012.02.016 fatcat:i3is6ssnbjdyfl6s4aab44jp3u

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

2012 IEEE Transactions on Geoscience and Remote Sensing  
., +, TGRS Feb. 2012 389-396 Analytic Yaw-Pitch Steering for Side-Looking SAR With Numerical Roll Algorithm for Incidence Angle. Scharf, D.  ...  ., +, TGRS Feb. 2012 617-629 Analytic Yaw-Pitch Steering for Side-Looking SAR With Numerical Roll Algorithm for Incidence Angle. Scharf, D.  ...  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

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

2019 IEEE Transactions on Geoscience and Remote Sensing  
Coherent Li, X., Yeo, T.S., Yang, Y., Chi, C., Zuo, F., Hu, X., and Pi, Y., Refo-cusing and Zoom-In Polar Format Algorithm for Curvilinear Spotlight SAR Imaging on Arbitrary Region of Interest; TGRS  ...  ., Geosynchronous SAR Tomography: Theory and First Experimental Verification Using Beidou IGSO Satellite; TGRS Sept. 2019 6591-6607 Hu, F., Wu, J., Chang, L., and Hanssen, R.F., Incorporating Temporary  ...  ., +, TGRS May 2019 2983-2989 DRBox-v2: An Improved Detector With Rotatable Boxes for Target Detection in SAR Images.  ... 
doi:10.1109/tgrs.2020.2967201 fatcat:kpfxoidv5bgcfo36zfsnxe4aj4

High-Resolution Spaceborne, Airborne and In Situ Landslide Kinematic Measurements of the Slumgullion Landslide in Southwest Colorado

Austin Madson, Eric Fielding, Yongwei Sheng, Kyle Cavanaugh
2019 Remote Sensing  
These comparisons show an overall increased magnitude and across-track component (i.e., more westerly angles of motion) for the descending SAR data as compared to their ascending counterparts.  ...  The processing techniques and subsequent results herein provide for an improved knowledge of the Slumgullion landslide's kinematics and this increased knowledge has implications for the advancement of  ...  Lidar data acquisition and processing completed by the National Center for Airborne Laser Mapping (NCALM).  ... 
doi:10.3390/rs11030265 fatcat:hnpvtekwjbgalcl3vhypitqrdu

A generalized approach to the vicarious calibration of multiple Earth observation sensors using hyperspectral data

P.M Teillet, G Fedosejevs, R.P Gauthier, N.T O'Neill, K.J Thome, S.F Biggar, H Ripley, A Meygret
2001 Remote Sensing of Environment  
The airborne hyperspectral sensor data were acquired using the Airborne Visible and Infrared Imaging Spectrometer (AVIRIS) at Railroad Valley and the Compact Airborne Spectrographic Imager (casi) in all  ...  Temporal extensions of QUASAR data sets to calibrate satellite sensors imaging the test site one or more days away from the airborne data acquisition day yield mixed results. Crown  ...  Dettwiler and Associates) with respect to ISDAS processing issues; Raymond Shin and Sacha Charbonneau-Leblond (University of Ottawa) for data reduction and analysis support; Jing Chen (Canada Centre for  ... 
doi:10.1016/s0034-4257(01)00211-5 fatcat:l543ykbqo5hhtonsodpscu3tum

Snow and ice applications of AVHRR in polar regions: report of a workshop held in Boulder, Colorado, 20 May 1992

K. Steffen, R. Bindschadler, G. Casassa, J. Comiso, D. Eppler, F. Fetterer, J. Hawkins, J. Key, D. Rothrock, R. Thomas, R. Weaver, R. Welch
1993 Annals of Glaciology  
and accuracy, following recommendations for future improvements.  ...  The seven topics discussed include cloud masking, ice surface temperature, narrow-band albedo, ice concentration, lead statistics, sea-ice motion and ice-sheet studies with specifics on applications, algorithms  ...  Many of the low estimates of error magnitudes are for ideal cases: ice near land and near swath centers with a nadir view and the smallest image pixels.  ... 
doi:10.1017/s0260305500012544 fatcat:ibesvlek7jcjnelwfs5x4m7y3u

ICESat's laser measurements of polar ice, atmosphere, ocean, and land

H.J. Zwally, B. Schutz, W. Abdalati, J. Abshire, C. Bentley, A. Brenner, J. Bufton, J. Dezio, D. Hancock, D. Harding, T. Herring, B. Minster (+4 others)
2002 Journal of Geodynamics  
The orbital altitude will be around 600 km at an inclination of 94 with a 183-day repeat pattern.  ...  ICESat is designed to operate for 3-5 years and should be followed by successive missions to measure ice changes for at least 15 years. #  ...  Several times during the mission, the data will be reprocessed to provide improved products with improved algorithms.  ... 
doi:10.1016/s0264-3707(02)00042-x fatcat:atprtmrbpjbjdgc4pt4haftxgu
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