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MIMO-SAR and the orthogonality confusion

G. Krieger, M. Younis, S. Huber, F. Bordoni, A. Patyuchenko, J. Kim, P. Laskowski, M. Villano, T. Romme, P. Lopez-Dekker, A. Moreira
2012 2012 IEEE International Geoscience and Remote Sensing Symposium  
Here, we extend this approach to a more general set of radar waveforms with special correlation properties that satisfy a short-term shift-orthogonality condition.  ...  As a solution to this fundamental MIMO-SAR problem we had previously suggested to exploit the special data acquisition geometry of a side-looking imaging radar equipped with multiple receiver channels  ...  After pointing out the similarities between OFDM and multidimensional waveform encoding, the question remains which kind of waveform encoding is the most appropriate.  ... 
doi:10.1109/igarss.2012.6351242 dblp:conf/igarss/KriegerYHBPKLVRLM12 fatcat:zs73gjqqmbewne5tgrxjbd5gwq

MIMO-SAR: Opportunities and Pitfalls

Gerhard Krieger
2014 IEEE Transactions on Geoscience and Remote Sensing  
Index Terms-Digital beamforming (DBF), multidimensional waveform encoding, multiple-input multiple-output synthetic aperture radar (MIMO-SAR), orthogonal frequency-division multiplexing (OFDM). 0196-2892  ...  on receive in elevation.  ...  After pointing out that MIMO-SAR imaging with OFDM and multidimensional waveform encoding are based on the same underlying principle, the question remains which kind of waveform encoding is the most appropriate  ... 
doi:10.1109/tgrs.2013.2263934 fatcat:fx6772qapncala4mbwsptg7moy

Multidimensional waveform encoding for spaceborne synthetic aperture radar systems

Gerhard Krieger, Nicolas Gebert, Alberto Moreira
2007 2007 International Waveform Diversity and Design Conference  
This paper introduces the innovative concept of multidimensional waveform encoding for spaceborne synthetic aperture radar (SAR).  ...  The combination of this technique with digital beamforming on receive enables a new generation of SAR systems with improved performance and flexible imaging capabilities.  ...  Right: Non-separable waveform allowing for a multidimensional encoding of the transmitted radar pulse.  ... 
doi:10.1109/wddc.2007.4339427 fatcat:jks54urobvbvveojj52r3qypbq

Multidimensional radar waveforms a new paradigm for the design and operation of highly performant spaceborne synthetic aperture radar systems

Gerhard Krieger, Nicolas Gebert, Alberto Moreira
2007 2007 IEEE International Geoscience and Remote Sensing Symposium  
This paper introduces and analyses the innovative paradigm of multidimensional waveform encoding for spaceborne synthetic aperture radar (SAR).  ...  The combination of this technique with digital beamforming on receive enables a new class of highly performant SAR systems employing novel and highly flexible radar imaging modes.  ...  Right: Non-separable waveform allowing for a multidimensional encoding of the transmitted radar pulse.  ... 
doi:10.1109/igarss.2007.4423969 dblp:conf/igarss/KriegerGM07 fatcat:z4z3wnfkm5gjvo373atldlndue

MIMO SAR Using Orthogonal Coding: Design, Performance Analysis, and Verifications

Yueguan Lin, Yida Fan, Chenglong Jiang, Zhiqiang Wang, Weizeng Shao
2015 International Journal of Antennas and Propagation  
A ground-based MIMO SAR imaging system with up and down chirp modulation is also designed.  ...  Multiple-input multiple-output (MIMO) synthetic aperture radar (SAR) is a promising technology in radar imaging which provides a better balance of azimuth resolution and swath width compared with traditional  ...  In this paper, MIMO SAR imaging based on orthogonal coding waveforms is proposed, and simulation and experiments in an anechoic chamber are carried out.  ... 
doi:10.1155/2015/629506 fatcat:2lqyemhzvvaapolyqldthfvuc4

Advanced synthetic aperture radar based on digital beamforming and waveform diversity

Gerhard Krieger, Nicolas Gebert, Marwan Younis, Alberto Moreira
2008 2008 IEEE Radar Conference  
The more advanced concepts employ a multidimensional encoding of the transmitted waveforms to further improve the performance and to enable a new class of hybrid SAR imaging modes that are well suited  ...  The new concepts rely on the combination of advanced multi-channel SAR front-end architectures with novel operational modes.  ...  MULTIDIMENSIONAL WAVEFORM ENCODING An advanced mode to operate a multi-channel SAR is the use of spatiotemporally non-separable waveforms for each transmitted radar pulse [15] .  ... 
doi:10.1109/radar.2008.4720875 fatcat:wbxnhlgf45dxlao2srgpijxnmy

Multidimensional Waveform Encoding: A New Digital Beamforming Technique for Synthetic Aperture Radar Remote Sensing

Gerhard Krieger, Nicolas Gebert, Alberto Moreira
2008 IEEE Transactions on Geoscience and Remote Sensing  
This paper introduces the innovative concept of multidimensional waveform encoding for spaceborne synthetic aperture radar (SAR).  ...  SAR imaging, hybrid SAR, MIMO SAR, synthetic aperture radar (SAR), waveform diversity.  ...  This paper presents a novel fully active digital beamforming technique for radar remote sensing that is based on the concept of multidimensional waveform encoding on transmit [35] , [36] .  ... 
doi:10.1109/tgrs.2007.905974 fatcat:ovmmog5dkngtjjoefu6ljc4psu

RadarConf21 2021 Blank Page

2021 2021 IEEE Radar Conference (RadarConf21)  
GMTI performance prediction and the radar equation.  ...  Also studied is waveform design that guarantees desirable beam patterns for MIMO radar and finally, the problem of waveform design under spectral interference constraints.  ...  Gogineni developed optimal waveform design techniques for adaptive MIMO radar systems and demonstrated improved target detection and estimation performance. At ISL, Dr.  ... 
doi:10.1109/radarconf2147009.2021.9454970 fatcat:gf7lve4dirh65jmkz7o4gzi754

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

2012 IEEE Transactions on Geoscience and Remote Sensing  
., +, TGRS Nov. 2012 4642-4656 Study on the Processing Scheme for Space-Time Waveform Encoding SAR System Based on Two-Dimensional Digital Beamforming.  ...  A., +, TGRS Dec. 2012 5061-5071 Fast GMTI Algorithm For Traffic Monitoring Based On A Priori Knowledge. Baumgartner, S.  ...  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

Design of large polyphase filters in the Quadratic Residue Number System

Gian Carlo Cardarilli, Alberto Nannarelli, Yann Oster, Massimo Petricca, Marco Re
2010 2010 Conference Record of the Forty Fourth Asilomar Conference on Signals, Systems and Computers  
Tp8b2-9 Clutter Covariance Matrices for gMTi MiMo Radar Joshua Kantor, Dan Bliss, MIT Lincoln Laboratory We examine the clutter covariance matrices for GMTI MIMO radar systems, and, in particular, discuss  ...  Slow-time MIMO waveforms, often referred to as SLO-MO waveforms, allow the implementation of MIMO radar without any hardware modifications to the receiver.  ... 
doi:10.1109/acssc.2010.5757589 fatcat:ccxnu5owr5fyrcjcqukumerueq

Adaptive transmission for radar arrays using Weiss-Weinstein bounds [article]

Christian Greiff, David Mateos-Núñez, María A. González-Huici, Stefan Brüggenwirth
2018 arXiv   pre-print
This selection optimizes the Weiss-Weinstein bound for a multi-dimensional frequency estimation model based on array measurements of a narrow-band far-field source.  ...  The resulting algorithms are analyzed in simulations where we showcase a practically feasible real-time evaluation based on look-up tables or small neural networks trained off-line.  ...  Joseph Tabrikian for helpful discussions on the topic during the German-Israeli exchange program TA44 and the anonymous reviewers that helped us improve the quality of the paper.  ... 
arXiv:1806.06641v2 fatcat:f7td3kpxufetnoupm567ad2xsu

Multidimensional waveform encoding for synthetic aperture radar remote sensing

G. Krieger, N. Gebert, A. Moreira
2007 IET International Conference on Radar Systems 2007   unpublished
This paper introduces and analyses the innovative concept of multidimensional waveform encoding for spaceborne synthetic aperture radar (SAR).  ...  The combination of this technique with digital beamforming on receive enables a new class of highly performant SAR systems employing novel and highly flexible radar imaging modes.  ...  Right: Non-separable waveform allowing for multidimensional encoding of the transmitted radar pulse.  ... 
doi:10.1049/cp:20070482 fatcat:kulev5scmfhy5b6k62cvlepiqm

Multipe-Input Multiple-Output Synthetic Aperture Radar for Multimodal Operation

Jung-Hyo Kim
2011
This work introduces a novel Multiple-Input Multiple-Output (MIMO) SAR and a new orthogonal waveform scheme based on the Orthogonal Frequency Division Multiplexing (OFDM) technique.  ...  This work deals with the MIMO SAR system operation principles and verifies the OFDM waveform by laboratory measurements.  ...  It implies that the novel waveform scheme can be easily combined with other waveform schemes, such as the orthogonal phase coding or the multidimensional encoding technique [70] .  ... 
doi:10.5445/ir/1000028740 fatcat:uc7kvgd6a5fdfp3f5r55duqtnu