Filters








68 Hits in 7.4 sec

A tutorial on synthetic aperture radar

Alberto Moreira, Pau Prats-Iraola, Marwan Younis, Gerhard Krieger, Irena Hajnsek, Konstantinos P. Papathanassiou
2013 IEEE Geoscience and Remote Sensing Magazine  
Abstract-Synthetic Aperture Radar (SAR) has been widely used for Earth remote sensing for more than 30 years.  ...  Section VIII concludes the paper and provides a vision for SAR remote sensing. II. baSIc Sar prIncIpleS A Synthetic Aperture Radar is an imaging radar mounted on a moving platform.  ... 
doi:10.1109/mgrs.2013.2248301 fatcat:adkcmbk66vak7c3xhzorqxxmdm

Investigation of Ocean Surface Wave Refraction Using TerraSAR-X Data

Xiaoming Li, S. Lehner, W. Rosenthal
2010 IEEE Transactions on Geoscience and Remote Sensing  
As a scientific and technological continuation of the X-band Synthetic Aperture Radar (X-SAR) and Shuttle Radar Topography Mission (SRTM) missions, the new X-SAR, namely, TerraSAR-X (TSX), was launched  ...  Index Terms-Cross sea, refraction and diffraction, sea surface wave, synthetic aperture radar (SAR).  ...  Bruns from DWD for providing the GSM wave model data and Prof. H. Graßl for the helpful comments and discussions.  ... 
doi:10.1109/tgrs.2009.2033177 fatcat:eylmmi2hafe53oh2qj7rjmkxpe

Recent Trend and Advance of Synthetic Aperture Radar with Selected Topics

Kazuo Ouchi
2013 Remote Sensing  
The present article is an introductory paper in this special issue on synthetic aperture radar (SAR).  ...  During the 13 years of interval between these two spaceborne SARs, much effort was made to develop and experiment new techniques with airborne SARs and Shuttle Imaging Radar (SIR) series.  ...  Pi-SAR data were provided by the National Institute of Information and Communications Technology (NICT), and JAXA.  ... 
doi:10.3390/rs5020716 fatcat:mhvchbqksbgpnmywcx6wnkl2lm

Spaceborne synthetic-aperture imaging radars: Applications, techniques, and technology

C. Elachi, T. Bicknell, R.L. Jordan, Chialin Wu
1982 Proceedings of the IEEE  
Absrrclet-ln the last four years, the f ' i i two Earthabiting, space borne, synthetic-aperture imaging radars (SAR) were s u d y developed and operated.  ...  The data acquired with these semrs extended the capability of Earth re(ywces and oceansurfice observation into a new region of the electromagnetic spectrum.  ...  To synthesize a long aperture, the radar platform must be moving relative to the target. Thus a geostationary orbiting radar cannot use the synthetic-aperture technique.  ... 
doi:10.1109/proc.1982.12448 fatcat:pfcw6zacdbcxtch5vtnb75ifcy

Interferometric Synthetic Aperture Radar (SAR) Missions Employing Formation Flying

Gerhard Krieger, Irena Hajnsek, Konstantinos Panagiotis Papathanassiou, Marwan Younis, Alberto Moreira
2010 Proceedings of the IEEE  
| This paper presents an overview of single-pass interferometric Synthetic Aperture Radar (SAR) missions employing two or more satellites flying in a close formation.  ...  The simultaneous reception of the scattered radar echoes from different viewing directions by multiple spatially distributed antennas enables the acquisition of unique Earth observation products for environmental  ...  Eineder for collecting the science requirements for the Tandem-L deformation mode and providing the right illustration in Fig. 16 , F.  ... 
doi:10.1109/jproc.2009.2038948 fatcat:hgvhvfr4tvhsvhpwhdwgbu7m6e

X-Band Synthetic Aperture Radar Methods [chapter]

Saverio Mori, Frank S. Marzano, Nazzareno Pierdicca
2020 Advances in Global Change Research  
Spaceborne Synthetic Aperture Radars (SARs), operating at L-band and above, offer microwave observations of the Earth at very high spatial resolution in almost all-weather conditions.  ...  This evidence has been assessed by numerous recent efforts analyzing data collected by COSMO-SkyMed (CSK) and TerraSAR-X (TSX) missions at X band.  ...  Aperture Radar Methods X-Band Synthetic Aperture Radar Methods X-Band Synthetic Aperture Radar Methods X-Band Synthetic Aperture Radar Methods X-Band Synthetic Aperture Radar Methods  ... 
doi:10.1007/978-3-030-24568-9_18 fatcat:q3cg2przzvathk7r7tbp2esrtq

The legacy of the SIR-C/X-SAR radar system: 25 years on

Anthony Freeman, Manfred Zink, Ed Caro, Alberto Moreira, Louise Veilleux, Marian Werner
2019 Remote Sensing of Environment  
Introduction A brief history of the SIR-C/X-SAR system The most advanced civil-use spaceborne SAR system of its time, the Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar (SIR-C/X-SAR) had  ...  its roots in a series of imaging radar missions that began with the NASA's Seasat synthetic aperture radar in 1978 (Evans et al, 2005) .  ... 
doi:10.1016/j.rse.2019.111255 fatcat:2qkh6bdnxbaapjumm334akvxve

First Spaceborne Demonstration of Digital Beamforming for Azimuth Ambiguity Suppression

Jung-Hyo Kim, Marwan Younis, Pau Prats-Iraola, Martina Gabele, Gerhard Krieger
2013 IEEE Transactions on Geoscience and Remote Sensing  
spaceborne synthetic aperture radar (SAR) imaging.  ...  In this paper, we present the first spaceborne experiment of a DBF technique on receive, using the TerraSAR-X dual receive antenna mode.  ...  INTRODUCTION A SYNTHETIC aperture radar (SAR) providing globalscale data with a fine spatial resolution plays an essential role in Earth observation and remote sensing.  ... 
doi:10.1109/tgrs.2012.2201947 fatcat:ql6n7decdrc2tatimit3lrp5qu

Ocean, platform, and signal processing effects on synthetic aperture sonar performance

Kenneth D. Rolt
1991 Journal of the Acoustical Society of America  
The target in the synthetic aperture sonar case could be the ocean bottom, and the objective could be, for example, ocean-bottom mapping or searching for a sunken vessel.  ...  While synthetic aperture radars have been extensively developed and used since the late 1950's, synthetic aperture sonars have been rare except for a number of academic papers and a few experimental systems  ...  I also thank the Charles Stark Draper Laboratory for sponsoring the work.  ... 
doi:10.1121/1.400746 fatcat:6357pltnarepbobpsu4b3ter6a

Research on Synthetic Aperture Radar Processing for the Spaceborne Sliding Spotlight Mode

Shijian Shen, Xin Nie, Xinggan Zhang
2018 Sensors  
is China' first C-band multi-polarization synthetic aperture radar (SAR) satellite, which also provides the sliding spotlight mode for the first time.  ...  Sliding-spotlight mode is a novel mode to realize imaging with not only high resolution, but also wide swath.  ...  Introduction Gaofen-3 (GF-3), launched on 10 August 2016, is China's first C-band multi-polarization synthetic aperture radar (SAR) satellite, mainly used in the fields of ocean surveillance, land observation  ... 
doi:10.3390/s18020455 pmid:29401680 pmcid:PMC5856185 fatcat:ozsbrgkmsfbmlcemakmbwfe4zm

Characterisation of the Tri-Modal Discrete Sea Clutter Model

Luke Rosenberg, Sebastien Angelliaume
2018 2018 International Conference on Radar (RADAR)  
In this paper, the tri-modal discrete texture (3MD) model is explored using real aperture data from the Defence Science and Technology Group Ingara radar and synthetic aperture radar data from the French  ...  Accurately representing the sea clutter amplitude or intensity distribution is important for achieving a constant false alarm rate in a detection scheme.  ...  ACKNOWLEDGMENTS SETHI SAR data used in this paper have been collected under the NAOMI (New Advanced Observation Method Integration) project, a common research program between TOTAL (the French petroleum  ... 
doi:10.1109/radar.2018.8557239 fatcat:kjy2llyierdpxlpsat3wn37lle

Theoretical Evaluation of Several Possible Along-Track InSAR Modes of TerraSAR-X for Ocean Current Measurements

Roland Romeiser, Hartmut Runge
2007 IEEE Transactions on Geoscience and Remote Sensing  
Index Terms-Along-track interferometry (ATI), current measurements, interferometric synthetic aperture radar (InSAR), TerraSAR-X.  ...  The German satellite TerraSAR-X, scheduled for launch in late 2006, will permit high-resolution ocean current measurements by along-track interferometric SAR (along-track InSAR) in various experimental  ...  Vogelzang from Rijkswaterstaat, Netherlands, for providing the KUSTWAD data and the TerraSAR-X engineering team for numerous fruitful discussions.  ... 
doi:10.1109/tgrs.2006.885405 fatcat:rojoetenlbapdpt35zzo3dtuf4

The GF-3 SAR Data Processor

Bing Han, Chibiao Ding, Lihua Zhong, Jiayin Liu, Xiaolan Qiu, Yuxin Hu, Bin Lei
2018 Sensors  
The Gaofen-3 (GF-3) data processor was developed as a workstation-based GF-3 synthetic aperture radar (SAR) data processing system.  ...  This paper presents a brief introduction of the GF-3 data processor, including descriptions of the system architecture, the processing algorithms and its output format.  ...  This work was partly supported by the major project of high resolution earth observation systems under Grant No.41-Y20A13-9001-15/16.  ... 
doi:10.3390/s18030835 pmid:29534464 pmcid:PMC5876876 fatcat:k5ruuquedvhl7oolebqhmzvliq

AN INTRODUCTION TO SYNTHETIC APERTURE RADAR (SAR)

Yee Kit Chan, Voon Chet Koo
2008 Progress in Electromagnetics Research B  
In a number of synthetic array radar this is achieved by pulse compression technique.  ...  Phase coded modulation normally used for long duration waveforms and when jamming may be a problem. 3) Mode of Operation Available data acquisition mode includes strip-mapping, squint mode, spotlight  ... 
doi:10.2528/pierb07110101 fatcat:ub3afp6vo5dehc7nk2ikqnpyce

Tests of and by Items

Robert L. Baker, Howard J. Sullivan
1966 Contemporary Psychology  
In a number of synthetic array radar this is achieved by pulse compression technique.  ...  Phase coded modulation normally used for long duration waveforms and when jamming may be a problem. 3) Mode of Operation Available data acquisition mode includes strip-mapping, squint mode, spotlight  ... 
doi:10.1037/008772 fatcat:lvtkxtqzpfg2jaekncnfc6diau
« Previous Showing results 1 — 15 out of 68 results