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Compressed sensing for Synthetic Aperture Radar imaging

Vishal M. Patel, Glenn R. Easley, Dennis M. Healy, Rama Chellappa
2009 2009 16th IEEE International Conference on Image Processing (ICIP)  
In this paper, we introduce a new Synthetic Aperture Radar (SAR) imaging modality that provides a high resolution map of the spatial distribution of targets and terrain based on a significant reduction  ...  This new imaging scheme, which requires no new hardware components, allows the aperture to be compressed and presents many important applications and advantages among which include resolving ambiguities  ...  (c) Reconstructed image using our proposed method from 60% slow-time undersampled data.  ... 
doi:10.1109/icip.2009.5414307 dblp:conf/icip/PatelEJC09 fatcat:wlrh24sbtvajpff5qk75kjx6hq

Subject Index

2013 Sadhana (Bangalore)  
reinforced concrete beam-column joints using SIFCON blocks 69 Single fill gas life-time Development of a compact and reliable repeti- tively pulsed Xe Cl (308 nm) excimer laser 101 Site investigations  ...  converters with low energy expenditure 359 Quadrotor An experimental stationary quadrotor with variable DOF 247 R.C. beam Application of digital image correlation method for analysing crack  ... 
doi:10.1007/s12046-014-0233-x fatcat:hlochqn2prcmvjcuucrs5cykme

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 July 2019 4748-4757 A Robust and Efficient Sparse Time-Invariant Radon Transform in the Mixed Time-Frequency Domain.  ...  ., +, TGRS June 2019 3649-3660 A Robust and Efficient Sparse Time-Invariant Radon Transform in the Mixed Time-Frequency Domain.  ... 
doi:10.1109/tgrs.2020.2967201 fatcat:kpfxoidv5bgcfo36zfsnxe4aj4


Mikkel Brydegaard, Alem Gebru, Sune Svanberg
2014 Electromagnetic Waves  
However, in the case of sparse occurrence of the atmospheric insects, where the optical cross-section oscillates, estimation of the range and spacing between individuals with a precision beyond the diffraction  ...  The sample-rate of this method is unconstrained by the round-trip time of the light, and the method allows assessment of the fast oscillatory insect wing-beats and harmonics over kilometers range, e.g.  ...  We thank SusanneÅkesson, Maren Wellenreuther, and Anna Runemark for continuous support, and interdisciplinary collaboration with CAnMove, Department of Biology, Lund University.  ... 
doi:10.2528/pier14101001 fatcat:j4rsk3uamvcoxlcjbgwizrn2gm

Acquisition geometry analysis in complex 3D media

E. J. van Veldhuizen, G Blacquière, A. J. Berkhout
2008 Geophysics  
Increasingly, we must deal with complex subsurface structures in seismic exploration, often resulting in poor illumination and, therefore, poor image quality.  ...  Expressions A-5 andA-6 tell that in the space-time domain, D j ͑z m ,z m ͒ is the time-reversed version of D j † ͑z m ,z m ͒ and S j † ͑z m ,z m ͒ is the time-reversed version of S j ͑z m ,z m ͒.  ...  Focal beams are inspected at zero time ͑image time͒ in the spatial domain and at zero intercept time in the Radon domain.  ... 
doi:10.1190/1.2972029 fatcat:w6noiqt2bjgpvon2gxohmkbjyi

Radon Transform Methods and Their Applications in Mapping Mantle Reflectivity Structure

Yu Jeffrey Gu, Mauricio Sacchi
2009 Surveys in geophysics  
This paper reviews the fundamentals of Radon-based methods using examples from global seismic applications.  ...  This study presents a 'cookbook' for Radon-based methods in analyzing shear wave bottom-side reflections from mantle interfaces, also know as SS precursors.  ...  We also thank IRIS for data archiving and dissemination. Some of the figures presented were prepared using the GMT software (Wessel and Smith 1995) .  ... 
doi:10.1007/s10712-009-9076-0 fatcat:agcloqhtyfdwfbqnfxqfo526m4

Distributed sensing of microseisms and teleseisms with submarine dark fibers

Ethan F. Williams, María R. Fernández-Ruiz, Regina Magalhaes, Roel Vanthillo, Zhongwen Zhan, Miguel González-Herráez, Hugo F. Martins
2019 Nature Communications  
Sparse seismic instrumentation in the oceans limits our understanding of deep Earth dynamics and submarine earthquakes.  ...  Here we report observations of microseism, local surface gravity waves, and a teleseismic earthquake along a 4192-sensor ocean-bottom DAS array offshore Belgium.  ...  The key of its performance lies in the use of a linearly chirped probe pulse for the time domain interrogation.  ... 
doi:10.1038/s41467-019-13262-7 pmid:31852889 pmcid:PMC6920360 fatcat:2e6qsrlza5hztfqbbfppxj7teu

Sparse-TFM Imaging of Lamb Waves for the Near-Distance Defects in Plate-Like Structures

Haiyan Zhang, Yaqun Liu, Guopeng Fan, Hui Zhang, Wenfa Zhu, Qi Zhu
2019 Metals  
A sparse array is applied to TFM for rapid imaging.  ...  However, it has a long imaging time and cannot realize near-distance defect imaging, which limits its application for industrial detection.  ...  However, with the increase of the array element number, this method becomes inefficient with massive data processing during TFM imaging.  ... 
doi:10.3390/met9050503 fatcat:bj5u7t6y5fepdavpxhrpai32ke

Application of Compressive Sensing to Ultrasound Images: A Review

Musyyab Yousufi, Muhammad Amir, Umer Javed, Muhammad Tayyib, Suheel Abdullah, Hayat Ullah, Ijaz Mansoor Qureshi, Khurram Saleem Alimgeer, Muhammad Waseem Akram, Khan Bahadar Khan
2019 BioMed Research International  
This paper reviews a number of significant CS algorithms used to recover US images from the undersampled data along with the discussion of CS in 3D US images.  ...  Compressive sensing relies on the sparsity of data; i.e., data should be sparse in original or in some transformed domain.  ...  Using beam-forming matrices, a direct US image reconstruction based on CS is presented. e authors in [34] developed an ultrasound time domain model for beam forming along with a frequency domain equivalent  ... 
doi:10.1155/2019/7861651 pmid:31828130 pmcid:PMC6885152 fatcat:w7f5wojvgrfn7mejqm2z3cipoq

Array Observations for Long-Period Basin Ground Motions in the Taipei Region during the M 7.1 Eastern Taiwan Offshore Earthquake of 31 March 2002

Bor-Shouh Huang, Yi-Ling Huang, Shiann-Jong Lee, Chi-Hsuan Chen, Kou-Cheng Chen, Win-Gee Huang, Shuhjong Tsao
2010 Terrestrial, Atmospheric and Oceanic Sciences  
We interpret these long period later arrivals to be surface waves, which are generated by a body wave interacting with the thick soft sediment of basin.  ...  This paper tracks the time history and spatial variation of the long-period (1 -10 sec) strong ground motions recorded in the Taipei basin during the magnitude 7.1 earthquake of 31 March 2002, offshore  ...  Acknowledgements The authors wish to express their appreciation to the Central Weather Bureau and the Institute of Earth Sciences, Academia Sinica for providing data used in this study.  ... 
doi:10.3319/tao.2009.11.17.02(th) fatcat:nmjd55o33rbf3axe3mzwkkrppa

High Resolution Arma Model Reconstruction for NDE Ultrasonic Imaging [chapter]

Yoh-Han Pao, Victor Chen, Ahmed El-Sherbini
1983 Review of Progress in Quantitative Nondestructive Evaluation  
a good approximation to the Fourier transform of the time data.  ...  It is known that the use of an ARMA model of a time sequence can result in a robust description of that data.  ... 
doi:10.1007/978-1-4613-3706-5_108 fatcat:j7mzwqyjsfewradtecbyynog34

R EVIEW A RTICLE Seismic-Wave Scattering, Imaging, and Inversion

global sci
2020 Communications in Computational Physics  
Ru-Shan Wu has made seminal contributions in many research areas in geophysics, such as seismic-wave propagation, scattering, imaging, and inversion.  ...  We highlight some of his research in holography imaging, diffraction tomography, seismic-wave scattering and its applications to studying Earth's heterogeneity, oneway wave propagation and one-return wave  ...  Because seismic events are sparse in time, it is better to also have time localization using a windowed t−ω transform.  ... 
doi:10.4208/ fatcat:e6anym2rxnbrjg6dodwjwiz3nu

Leading-order seismic imaging using curvelets

Huub Douma, Maarten V. de Hoop
2007 Geophysics  
Curvelets are plausible candidates for simultaneous compression of seismic data, their images, and the imaging operator itself.  ...  of coordinates of curvelets in the data, combined with amplitude scaling.  ...  For examples of sparse representations of seismic data and seismic images in the curvelet domain and applications that make use thereof, we refer the reader to Candès et al. ͑2006͒, Yarham et al. ͑2006͒  ... 
doi:10.1190/1.2785047 fatcat:uayf6a7625henadsqdhjp3bcmq

Migration of backscatter data from the Mid-Atlantic Ridge

Alistair J. Harding, Michael A. H. Hedlin, John A. Orcutt
1998 Journal of the Acoustical Society of America  
A time-domain migration algorithm for the reverberation intensity field is developed that produces scattering coefficient maps coregistered with a bathymetry database.  ...  Iterative migration, assuming a dominant dependence of backscatter on grazing angle, produces images, even from individual records, that show good ambiguity resolution.  ...  We would also like to thank Paul Henkart for maintaining the SRP data archive and ensuring its accessibility.  ... 
doi:10.1121/1.421332 fatcat:yvsujemiy5a3jdvw5vbfbwtjxm

Compressed Synthetic Aperture Radar

V.M. Patel, G.R. Easley, D.M. Healy, R. Chellappa
2010 IEEE Journal on Selected Topics in Signal Processing  
In this paper, we introduce a new synthetic aperture radar (SAR) imaging modality which can provide a high-resolution map of the spatial distribution of targets and terrain using a significantly reduced  ...  This new imaging scheme, requires no new hardware components and allows the aperture to be compressed.  ...  Patel is a member of Eta Kappa Nu, Pi Mu Epsilon, Phi Beta Kappa, and a student member of SIAM.  ... 
doi:10.1109/jstsp.2009.2039181 fatcat:3bwn3gpjnbekhceczqotdi57ya
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