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Publications about 'beamforming'

Books and proceedings

  1. Othmar Frey. Synthetic Aperture Radar Imaging in the Time Domain for Nonlinear Sensor Trajectories and SAR Tomography, PhD Thesis. Remote Sensing Series, vol. 59, Remote Sensing Laboratories, University of Zurich, Zurich, Switzerland. 2010. Keyword(s): SAR Processing, SAR Tomography, Tomography, Focusing, Time-Domain Back-Projection, TDBP, Corridor Mapping, Curvilinear SAR, Nonlinear Flight Tracks, Synthetic Aperture Radar (SAR), Remote Sensing, Airborne SAR, Forestry, L-Band, P-Band, Interferometry, InSAR, SAR Interferometry, Polarimetry, PolInSAR, Polarimetric SAR Tomography, Array signal processing, Extended Chirp Scaling, ECS, Mosaicking, Geocoding, Integrated Focusing and Geocoding, Georeferencing, mapping, E-SAR, digital elevation model, Capon, Capon beamformer, beamforming, multibaseline, multiple signal classification, MUSIC, three-dimensional imaging, 3-D imaging, Vegetation. [bibtex-entry]


  2. Jian Li, Petre Stoica, Zhisong Wang, Robert G. Lorenz, Stephen P. Boyd, Alex B. Gershman, Zhi-Quan Luo, Shahram Shahbazpanahi, Xavier Mestre, Miguel A. Lagunas, Yonina C. Eldar, Arye Nehorai, Alle-Jan van der Veen, Amir Leshem, Elio D. Di Claudio, and Raffaele Parisi. Robust Adaptive Beamforming. Wiley-Interscience, 2006. Keyword(s): SAR Processing, Beamforming, Adaptive Beamforming, Robust Adaptive Beamforming, MUSIC, Capon, Subspace Methods, SAR Tomography, Tomography. [bibtex-entry]


  3. Petre Stoica and Randolph L. Moses. Spectral Analysis of Signals. Prentice Hall, Upper Saddle River, NJ, 2005. Keyword(s): Spectral Estimation, MUSIC, Capon, Beamforming, Direction-of-arrival estimation, SAR Processing, SAR Tomography. [bibtex-entry]


Thesis

  1. David W. Hawkins. Synthetic aperture imaging algorithms : with application to wide bandwidth sonar. PhD thesis, University of Canterbury. Electrical and Computer Engineering, 1996. Keyword(s): SAR Processing, Azimuth Focusing, Autofocus, Synthetic Aperture Sonar, SAS, Sonar, Phase Gradient Autofocus, Stripmap, range-Doppler Algorithm, Chirp Scaling Algorithm, CSA, omega-k, Wavenumber Domain Algorithm. [Abstract] [bibtex-entry]


Articles in journal or book chapters

  1. Marwan Younis, Felipe Queiroz de Almeida, Michelangelo Villano, Sigurd Huber, Gerhard Krieger, and Alberto Moreira. Digital Beamforming for Spaceborne Reflector-Based Synthetic Aperture Radar, Part 1: Basic imaging modes. IEEE Geoscience and Remote Sensing Magazine, 9(3):8-25, Sep. 2021. Keyword(s): SCORE, scan-on-receive, SweepSAR, Digital Beamforming, Beamforming, Wide-Swath, Synthetic aperture radar, Spaceborne SAR, Mission Concept, Antenna Concept, Imaging Concept, Antenna feeds, Transmission line measurements, Reflector antennas, Spaceborne radar, Radar imaging, Parabolic antennas, Tandem-L, Rose-L, NiSAR. [Abstract] [bibtex-entry]


  2. Yanyan Zhang, Hao Zhang, Shuai Hou, Yunkai Deng, Weidong Yu, and Robert Wang. An Innovative Superpolyhedron (SP) Formation for Multistatic SAR (M-SAR) Interferometry. IEEE Transactions on Geoscience and Remote Sensing, 59(12):10136-10150, December 2021. Keyword(s): Satellites, Synthetic aperture radar, Spaceborne radar, Radar, Space vehicles, Sea measurements, Radar imaging, Genetic algorithm (GA), interferometric synthetic aperture radar (InSAR), multistatic synthetic aperture radar (M-SAR), satellite formation, superpolyhedron (SP). [Abstract] [bibtex-entry]


  3. Victor Cazcarra-Bes, Matteo Pardini, Marivi Tello-Alonso, and K. P. Papathanassiou. Comparison of Tomographic SAR Reflectivity Reconstruction Algorithms for Forest Applications at L-band. IEEE Trans. Geosci. Remote Sens., 58(1):147-164, January 2020. Keyword(s): SAR Processing, SAR Tomography, Forestry, Synthetic aperture radar, Image reconstruction, Decorrelation, Estimation, Reconstruction algorithms, Capon beamforming (CB), compressive sensing (CS), forest applications, forest structure, Fourier beamforming (FB), L-band, synthetic aperture radar (SAR), tomography, airborne SAR. [Abstract] [bibtex-entry]


  4. Yongwei Huang, Mingkang Zhou, and Sergiy A. Vorobyov. New Designs on MVDR Robust Adaptive Beamforming Based on Optimal Steering Vector Estimation. IEEE Transactions on Signal Processing, 67(14):3624-3638, July 2019. Keyword(s): SAR Processing, Beamforming, Robust Beamforming, Capon Beamformsing, MVDR, MVDR Beamforming, Direction-of-arrival estimation, DOA, SAR Tomography, Robust Adaptive Beamforming. [Abstract] [bibtex-entry]


  5. Unmesh Khati, Marco Lavalle, and Gulab Singh. Spaceborne tomography of multi-species Indian tropical forests. Remote Sensing of Environment, 229:193-212, 2019. Keyword(s): SAR Processing, SAR Tomography, TomoSAR, Tomography, TanDEM-X, TerraSAR-X, Tropical, Forest, India, Spaceborne SAR, X-band. [Abstract] [bibtex-entry]


  6. N. Sakar, M. Rodriguez-Cassola, P. Prats-Iraola, and A. Moreira. Azimuth Reconstruction Algorithm for Multistatic SAR Formations With Large Along-Track Baselines. IEEE Transactions on Geoscience and Remote Sensing, pp 1-10, 2019. Keyword(s): Azimuth, Synthetic aperture radar, Image reconstruction, History, Receivers, Doppler effect, Reconstruction algorithms, Digital beamforming, high-resolution wide-swath (HRWS) radar, multistatic radar signal processing, synthetic aperture radar (SAR). [Abstract] [bibtex-entry]


  7. Stefano Tebaldini, Dinh Ho Tong Minh, Mauro Mariotti d'Alessandro, Ludovic Villard, Thuy Le Toan, and Jerome Chave. The Status of Technologies to Measure Forest Biomass and Structural Properties: State of the Art in SAR Tomography of Tropical Forests. Surveys in Geophysics, May 2019. Keyword(s): SAR Processing, SAR Tomography, BIOMASS, Earth Explorer 7, EE7, Airborne radar, Array signal processing, Capon, Capon beamformer, L-band, P-band, SAR processing, SAR tomography, beamforming, Focusing, forestry, interferometry, InSAR, multibaseline, multiple signal classification, MUSIC, polarimetry, Remote Sensing, synthetic aperture radar, SAR, scattering, three-dimensional imaging, 3-D imaging, time-domain back-projection, TDBP, tomography, Vegetation, Spaceborne SAR. [Abstract] [bibtex-entry]


  8. Nida Sakar, Marc Rodriguez-Cassola, Pau Prats-Iraola, Andreas Reigber, and Alberto Moreira. Analysis of Geometrical Approximations in Signal Reconstruction Methods for Multistatic SAR Constellations With Large Along-Track Baseline. IEEE Geoscience and Remote Sensing Letters, 15(6):892-896, June 2018. Keyword(s): Doppler effect, Geometry, History, Image reconstruction, Receivers, Spaceborne radar, Synthetic aperture radar, Digital beamforming, high-resolution wide-swath (HRWS) radar, multistatic radar signal processing, synthetic aperture radar (SAR). [Abstract] [bibtex-entry]


  9. J. I. Buskenes, Roy E. Hansen, and A. Austeng. Low-Complexity Adaptive Sonar Imaging. IEEE Journal of Oceanic Engineering, 42(1):87-96, January 2017. Keyword(s): Synthetic Aperture Sonar, SAS, Sonar, array signal processing, interference suppression, sonar imaging, DAS beamformer, Hamming window function, Kaiser window, Kongsberg Maritime HISAS1030 sonar, LCA beamformer, delay-and-sum beamformer, gain -3 dB, interference minimization, low-complexity adaptive sonar imaging, minimum variance distortionless response, parallel hardware, rectangular window function, robust MVDR implementation, spatial statistics, Array signal processing, Arrays, Covariance matrices, Image resolution, Imaging, Robustness, Sonar, Active, LCA, MVDR, active filters, adaptive beamforming, adaptive filters, beamforming, complexity, computational complexity, phased arrays, sonar, spatial filters. [Abstract] [bibtex-entry]


  10. Victor Cazcarra-Bes, Marivi Tello-Alonso, Rico Fischer, Michael Heym, and Konstantinos Papathanassiou. Monitoring of Forest Structure Dynamics by Means of L-Band SAR Tomography. Remote Sensing, 9(12), 2017. Keyword(s): SAR Processing, SAR Tomography, Forestry, Synthetic aperture radar, Image reconstruction, Decorrelation, Estimation, forest applications, forest structure, Fourier beamforming (FB), L-band, synthetic aperture radar (SAR), tomography, L-Band, Airborne SAR. [Abstract] [bibtex-entry]


  11. Fabrizio Lombardini and Federico Viviani. Single-look light-burden superresolution differential SAR tomography. Electronics Letters, 52(7):557-558, 2016. Keyword(s): SAR Processing, SAR Tomography, persistent scatterer interferometry, PSI, DInSAR, multibaseline interferometry, interferometric stacking, deformation monitoring, subsidence monitoring, urban remote sensing, array signal processing, image sampling, radar imaging, radar interferometry, radar resolution, spectral analysis, synthetic aperture radar, 2D baseline-time spectral analysis framework, adaptive 2D spectral estimation, coherent multilooking processing, complex nonstationary scenes, complex-valued synthetic aperture radar data, elevation beamforming, full range-azimuth resolution products, full-3D imaging, height-velocity sidelobe reduction, layover scatterers, mature differential interferometry, multibaseline interferometry, satellites, single-look adaptive Diff-Tomo processor, single-look light-burden superresolution differential SAR tomography, sparse sampling, spatial spectral estimation. [Abstract] [bibtex-entry]


  12. Muhammad Adnan Siddique, Urs Wegmuller, Irena Hajnsek, and Othmar Frey. Single-look SAR tomography as an add-on to PSI for improved deformation analysis in urban areas. IEEE Trans. Geosci. Remote Sens., 54(10):6119-6137, 2016. Keyword(s): SAR Processing, SAR Tomography, persistent scatterer interferometry, PSI, DInSAR, multibaseline interferometry, interferometric stacking, deformation monitoring, subsidence monitoring, thermal dilation, urban, urban remote sensing, buildings, estimation, remote sensing, synthetic aperture radar, thermal expansion, tomography, urban areas, TerraSAR-X, Barcelona. [Abstract] [bibtex-entry]


  13. O. Ponce, P. Prats-Iraola, R. Scheiber, A. Reigber, A. Moreira, and E. Aguilera. Polarimetric 3-D Reconstruction From Multicircular SAR at P-Band. IEEE_J_GRSL, 11(4):803-807, April 2014. Keyword(s): airborne radar, array signal processing, calibration, compressed sensing, image reconstruction, image resolution, optical focusing, radar imaging, radar polarimetry, radar resolution, singular value decomposition, synthetic aperture radar, 2D image stacking, 3D cone-shaped sidelobe suppression, 3D reconstruction polarimetry, BF, CS, DLR, FFBP, German Aerospace Center F-SAR system, LOS, P-band, SVD, Vordemwald Switzerland, beamforming, circular flight, complex reflectivity solution, compressive sensing, constant phase offset estimation, fast-factorized back projection, line of sight, multicircular synthetic aperture radar, phase calibration method, polarimetric MCSAR airborne experiment, Apertures, Calibration, Focusing, Image resolution, Remote sensing, Synthetic aperture radar, Circular synthetic aperture radar (SAR) (CSAR), compressive sensing (CS), phase calibration, polarimetric SAR (PolSAR), singular value decomposition (SVD), tomography. [bibtex-entry]


  14. A. E. Albright Blomberg, A. Austeng, Roy E. Hansen, and S. A. V. Synnes. Improving Sonar Performance in Shallow Water Using Adaptive Beamforming. IEEE Journal of Oceanic Engineering, 38(2):297-307, April 2013. Keyword(s): Synthetic Aperture Sonar, SAS, adaptive signal processing, array signal processing, interference suppression, optimisation, sonar imaging, Hanning window, LCA beamformer, MVDR beamformer, SNR, adaptive beamforming, adaptive minimum variance distortionless response beamformer, bottom-imaging sonars, dense receiver array, four-element receivers, low complexity adaptive beamformer, low sidelobe levels, multipath interference avoidance, multipath propagation, narrow mainlobe width, optimization criteria, second-order multipaths, shallow-water environments, sidelobe suppression, signal-to-noise ratio, sonar performance, spatial smoothing, vertical array, Array signal processing, Arrays, Receivers, Scattering, Sea surface, Signal to noise ratio, Sonar, Adaptive beamforming, multipath reduction, shallow-water imaging, sonar. [Abstract] [bibtex-entry]


  15. A. E. A. Blomberg, C. I. C. Nilsen, A. Austeng, and Roy E. Hansen. Adaptive Sonar Imaging Using Aperture Coherence. IEEE Journal of Oceanic Engineering, 38(1):98-108, January 2013. Keyword(s): Synthetic Aperture Sonar, SAS, array signal processing, sonar imaging, speckle, DAS beamformer, HISAS 1030 sonar, SNR scenarios, SWiP, Wiener postfilter, adaptive sonar imaging, aperture-coherence-based methods, backscattered energy, coherence factor, computationally efficient adaptive imaging methods, delay-and-sum beamformer, image resolution, medical ultrasound imaging, noise suppression capabilities, receiver array, signal-to-noise ratio, speckle environment, Apertures, Arrays, Coherence, Imaging, Noise, Sonar, Speckle, Adaptive beamforming, Wiener postfilter, aperture coherence, array signal gain, coherence factor (CF), sonar imaging. [Abstract] [bibtex-entry]


  16. Alberto Moreira, Pau Prats-Iraola, Marwan Younis, Gerhard Krieger, Irena Hajnsek, and Konstantinos P. Papathanassiou. A tutorial on synthetic aperture radar. IEEE Geoscience and Remote Sensing Magazine, 1(1):6-43, March 2013. Keyword(s): SAR Processing, Tutorial, SAR Focusing, Azimuth Focusing, SAR Interferometry, SAR Polarimetry, polarimetric interferometry, PolInSAR, InSAR, SAR Tomography, geophysical techniques, radar interferometry, radar polarimetry, remote sensing by radar, synthetic aperture radar, Earth remote sensing, bistatic configurations, differential interferometry, digital beamforming, holographic tomography, multiple-input multiple-output, multistatic configurations, polarimetric SAR interferometry, polarimetry, synthetic aperture radar, Radar imaging, Remote sensing, Scattering, Spaceborne radar, Synthetic aperture radar, Tutorial, Teaching Material, Teaching. [Abstract] [bibtex-entry]


  17. A. E. A. Blomberg, A. Austeng, and Roy E. Hansen. Adaptive Beamforming Applied to a Cylindrical Sonar Array Using an Interpolated Array Transformation. IEEE Journal of Oceanic Engineering, 37(1):25-34, January 2012. Keyword(s): Synthetic Aperture Sonar, SAS, array signal processing, interpolation, sonar arrays, sonar signal processing, SX90 fish finding sonar, adaptive beamforming, adaptive minimum variance, amplitude estimation, azimuth resolution, cylindrical sonar array, interference rejection, interpolated array transformation, phase estimation, virtual linear array, Array signal processing, Arrays, Covariance matrix, Signal resolution, Sonar applications, Vectors, Adaptive signal processing, array signal processing, beam steering, imaging, sonar, spatial resolution. [Abstract] [bibtex-entry]


  18. Federica Bordoni, Marwan Younis, and Gerhard Krieger. Ambiguity Suppression by Azimuth Phase Coding in Multichannel SAR Systems. IEEE Trans. Geosci. Remote Sens., 50(2):617-629, February 2012. Keyword(s): SAR Processing, APC technique, ambiguity suppression, azimuth phase coding, digital beamforming, flexible SAR systems, multichannel SAR systems, multiple transmit-receive channels, numerical analysis, reflector antenna, spaceborne SAR systems, spaceborne synthetic aperture radar systems, array signal processing, numerical analysis, phase coding, radar signal processing, remote sensing by radar, synthetic aperture radar. [Abstract] [bibtex-entry]


  19. Othmar Frey and Erich Meier. 3-D Time-Domain SAR Imaging of a Forest Using Airborne Multibaseline Data at L- and P-Bands. IEEE Trans. Geosci. Remote Sens., 49(10):3660-3664, October 2011. Keyword(s): Airborne radar, Array signal processing, Capon, Capon beamformer, L-band, P-band, SAR processing, SAR tomography, beamforming, Focusing, forestry, interferometry, InSAR, multibaseline, multiple signal classification, MUSIC, polarimetry, Remote Sensing, synthetic aperture radar, SAR, three-dimensional imaging, 3-D imaging, time-domain back-projection, TDBP, tomography, Vegetation. [Abstract] [bibtex-entry]


  20. Othmar Frey and Erich Meier. Analyzing Tomographic SAR Data of a Forest With Respect to Frequency, Polarization, and Focusing Technique. IEEE Trans. Geosci. Remote Sens., 49(10):3648-3659, October 2011. Keyword(s): Airborne radar, Array signal processing, Capon, Capon beamformer, L-band, P-band, SAR processing, SAR tomography, beamforming, Focusing, forestry, interferometry, InSAR, multibaseline, multiple signal classification, MUSIC, polarimetry, Remote Sensing, synthetic aperture radar, SAR, scattering, three-dimensional imaging, 3-D imaging, time-domain back-projection, TDBP, tomography, Vegetation. [Abstract] [bibtex-entry]


  21. Stefan Sauer, Laurent Ferro-Famil, Andreas Reigber, and Eric Pottier. Three-Dimensional Imaging and Scattering Mechanism Estimation Over Urban Scenes Using Dual-Baseline Polarimetric InSAR Observations at L-Band. IEEE Trans. Geosci. Remote Sens., PP(99):1-14, 2011. Keyword(s): SAR Processing, SAR Tomography, Tomography, Capon, MUSIC, multiple signal classification, Polarimetry, Multibaseline SAR, InSAR, Interferometry, SAR Interferometry, Urban Remote Sensing. [Abstract] [bibtex-entry]


  22. Lin Du, Jian Li, and Petre Stoica. Fully Automatic Computation of Diagonal Loading Levels for Robust Adaptive Beamforming. IEEE Transactions on Aerospace and Electronic Systems, 46(1):449-458, January 2010. Keyword(s): Capon, array signal processing, covariance matrices, fully automatic computation, diagonal loading levels, robust adaptive beamforming, covariance matrix estimate, Capon beamforming formulation, Robustness, Array signal processing, Covariance matrix, Degradation, Councils, Uncertainty, Guidelines, Spatial filters, Signal to noise ratio, Calibration. [Abstract] [bibtex-entry]


  23. Nicolas Gebert, Gerhard Krieger, and Alberto Moreira. Multichannel Azimuth Processing in ScanSAR and TOPS Mode Operation. IEEE Trans. Geosci. Remote Sens., 48(7):2994-3008, July 2010. Keyword(s): SAR Processing, TOPS, Terrain Observation by Progressive Scans, geophysical signal processing, geophysical techniques, synthetic aperture radar, SAR missions, SAR signal processing, TOPS mode operation, Terrain Observation by Progressive Scans system, azimuth antenna length, conventional synthetic aperture radar, digital beamforming algorithms, digital signal processing network, geometric resolution, high-resolution wide-swath SAR imaging, multichannel ScanSAR systems, multichannel azimuth processing, multichannel burst-mode operation, multichannel stripmap mode, multiple azimuth channels, multiple receive channels, staircase multichannel processing, stripmap operation, ultrawide-swath imaging, ultrawide-swath synthetic aperture radar imaging, High-resolution ultrawide-swath synthetic aperture radar (SAR) imaging, ScanSAR, TOPS, multichannel azimuth processing, multichannel burst-mode operation. [Abstract] [bibtex-entry]


  24. Paco Lopez-Dekker and Jordi. J. Mallorqui. Capon- and APES-Based SAR Processing: Performance and Practical Considerations. IEEE Transactions on Geoscience and Remote Sensing, 48(5):2388-2402, May 2010. Keyword(s): SAR Processing, APES, Amplitude and Phase EStimation, Capon, minimum variance distortionless response, MVDR, Capon Beamforming, Beamforming, geophysical techniques, spectral analysis, synthetic aperture radar, minimum variance method, APES-based SAR processing, spectral-estimation algorithms, synthetic aperture radar, Capon processing chain, chip-image size, resampling factor, diagonal loading, joint-processing approach, Monte Carlo simulations, RADARSAT-2 quad-polarization data, Barcelona, adaptive processing, 2D spectral analysis, Spain, Azimuth, Backpropagation algorithms, Focusing, Covariance matrix, Phase estimation, Tomography, Remote sensing, Laboratories, Microwave communication, Array signal processing, Adaptive processing, synthetic aperture radar, 2-D spectral analysis. [Abstract] [bibtex-entry]


  25. Gianfranco Fornaro and Antonio Pauciullo. LMMSE 3-D SAR Focusing. IEEE Trans. Geosci. Remote Sens., 47(1):214-223, January 2009. Keyword(s): SAR Processing, SAR Tomography, Tomography, data acquisition, remote sensing by radar, singular value decomposition, synthetic aperture radar, LMMSE, synthetic aperture radar imaging systems, antenna SAR sensor, atmospheric phase miscalibration, atmospheric residual miscalibration, beamforming, data correlation properties, data integration, linear minimum mean square error method, multistatic data acquisition, satellite technology, singular values decomposition inversion, stochastic process. [Abstract] [bibtex-entry]


  26. J. Groen, Roy E. Hansen, H. J. Callow, J. C. Sabel, and T. O. Sabo. Shadow Enhancement in Synthetic Aperture Sonar Using Fixed Focusing. IEEE Journal of Oceanic Engineering, 34(3):269-284, July 2009. Keyword(s): Synthetic Aperture Sonar, SAS, image enhancement, sonar imaging, sonar target recognition, synthetic aperture sonar, HUGIN autonomous underwater vehicle, fixed focus shadow enhancement, shadow clarity, synthetic aperture sonar imaging, target recognition, widebeam synthetic aperture imaging systems, Acoustics, beamforming, focusing, imaging, shadow, synthetic aperture sonar (SAS). [Abstract] [bibtex-entry]


  27. F. Lombardini, M. Pardini, G. Fornaro, F. Serafino, L. Verrazzani, and M. Costantini. Linear and adaptive spaceborne threedimensional SAR tomography: a comparison on real data. IET Radar, Sonar Navigation, 3(4):424-436, August 2009. Keyword(s): ERS satellite urban data, SAR interferometry concept, adaptive beamforming, adaptive spaceborne three-dimensional SAR tomography, linear spaceborne three-dimensional SAR tomography, singular value decomposition, synthetic aperture radar imaging, array signal processing, geophysical signal processing, radar imaging, remote sensing by radar, singular value decomposition, spaceborne radar, synthetic aperture radar, tomography. [Abstract] [bibtex-entry]


  28. Adriano Meta, Peter Hoogeboom, and L. P. Ligthart. Signal Processing for FMCW SAR. IEEE Transactions on Geoscience and Remote Sensing, 45(11):3519-3532, November 2007. Keyword(s): SAR Processing, SAR Focusing, Azimuth Focusing, FMCW, FMCW SAR, geophysical signal processing, geophysical techniques, image sensors, radar imaging, synthetic aperture radar, Delft University of Technology, FMCW technique, Netherlands, SAR technique, conventional stop-and-go approximation, data collection, frequency-modulated continuous-wave technology, high resolution image sensor, pulse-radar algorithms, signal model, signal processing, signal transmission, synthetic aperture radar, Frequency, High-resolution imaging, Image resolution, Image sensors, Limiting, Radar signal processing, Signal processing, Signal processing algorithms, Signal resolution, Synthetic aperture radar, Doppler frequency correction, frequency-modulated continuous wave (FMCW), nonlinearity correction, synthetic aperture radar (SAR). [Abstract] [bibtex-entry]


  29. T. O. Saebo, Roy E. Hansen, and A. Hanssen. Relative Height Estimation by Cross-Correlating Ground-Range Synthetic Aperture Sonar Images. IEEE Journal of Oceanic Engineering, 32(4):971-982, October 2007. Keyword(s): Synthetic Aperture Sonar, SAS, oceanographic techniques, seafloor phenomena, sonar imaging, synthetic aperture sonar, Elba Island, InSAS-2000 experiment, Italy, SAS processing, along-track resolution, azimuth resolution, broadband signals, coherent frequency-dependent scattering, correction technique, cross correlations, geometrical decorrelation effect, image acquisition, mathematical model, moving platform, seafloor relative height, signal-to-noise ratio, sonar images beamforming, synthetic aperture sonar imaging, time-delay estimates, vertically displaced receivers, Azimuth, Coherence, Decorrelation, Frequency estimation, Mathematical model, Scattering, Sea floor, Signal resolution, Signal to noise ratio, Synthetic aperture sonar, Bathymetry, coherence, cross correlation, height estimation, interferometry, synthetic aperture sonar (SAS), time-delay estimation. [Abstract] [bibtex-entry]


  30. Boon Leng Cheong, Michael W. Hoffman, Robert D. Palmer, Stephen J. Frasier, and F. J. López-Dekker. Pulse pair beamforming and the effects of reflectivity field variations on imaging radars. Radio Science, 39(3), 2004. Note: RS3014. Keyword(s): Radio Science: Remote sensing, Radio Science: Signal processing, Radio Science: Tomography and imaging, Radio Science: Instruments and techniques, pulse pair beamforming, gradient variations, imaging radars. [Abstract] [bibtex-entry]


  31. Jian Li, Petre Stoica, and Zhisong Wang. On robust Capon beamforming and diagonal loading. Signal Processing, IEEE Transactions on [see also Acoustics, Speech, and Signal Processing, IEEE Transactions on], 51(7):1702-1715, 2003. Keyword(s): SAR Processing, Capon, Spectral Estimation, Beamforming, array signal processing, interference suppression, parameter estimation, signal resolution, SOI power estimation, SOI steering vector, adaptive arrays, array steering vector, data-independent beamformer, diagonal loading, interference rejection, robust Capon beamforming, signal of interest, standard Capon beamformer, uncertain steering vectors, uncertainty set. [Abstract] [bibtex-entry]


  32. Petre Stoica, Zhisong Wang, and Jian Li. Robust Capon beamforming. IEEE Signal Processing Letters, 10(6):172-175, June 2003. Keyword(s): SAR Processing, Capon, Capon Beamforming, Robust Capon beamforming, Beamforming, Spectral Estimation, array signal processing, interference suppression, signal resolution adaptive arrays, adaptive beamforming, array steering vector, interference rejection capability, resolution, signal of interest, uncertain steering vectors. [Abstract] [bibtex-entry]


  33. Marwan Younis, Christian Fischer, and Werner Wiesbeck. Digital beamforming in SAR systems. IEEE Trans. Geosci. Remote Sens., 41(7):1735-1739, July 2003. Keyword(s): SAR, digital beamforming, digital hardware, digital interface, geophysical measurement technique, land surface, radar remote sensing, signal processing, software codes, software-defined radar sensors, synthetic aperture radar, terrain mapping, geophysical signal processing, geophysical techniques, radar signal processing, remote sensing by radar, synthetic aperture radar, terrain mapping. [Abstract] [bibtex-entry]


  34. F. Gini, F. Lombardini, and M. Montanari. Layover solution in multibaseline SAR interferometry. Aerospace and Electronic Systems, IEEE Transactions on, 38(4):1344-1356, 2002. Keyword(s): SAR Processing, SAR Tomography, Tomography, Monte Carlo methods, airborne radar, radiowave interferometry, remote sensing by radar, synthetic aperture radar, MUSIC, Cramer-Rao lower bounds, Interferometry, InSAR, M-RELAX, Monte Carlo simulations, RELAX algorithm, baseline diversity, discontinuities, height contributions, layover solution, multibaseline SAR interferometry, multichannel interferometric synthetic aperture radar, multiplicative noise, natural targets, nonparametric techniques, parametric techniques, range-azimuth resolution cell, spectral estimation techniques, terrain slopes. [Abstract] [bibtex-entry]


  35. Erik G. Larsson and Petre Stoica. Fast Implementation of Two-Dimensional APES and CAPON Spectral Estimators. Multidimensional Systems and Signal Processing, 13(1):35-53, 2002. Keyword(s): 2D Imaging, Capon, APES, Fast Implementation, Spectral Estimation, Beamforming. [Abstract] [bibtex-entry]


  36. D.E. Wahl. Towed array shape estimation using frequency-wavenumber data. IEEE Journal of Oceanic Engineering, 18(4):582-590, October 1993. Keyword(s): Frequency estimation, Sensor arrays, Signal processing algorithms, Array signal processing, Shape measurement, Sea measurements, Degradation, Maximum likelihood estimation, Acoustic sensors, Sensor systems. [Abstract] [bibtex-entry]


  37. B.D. Carlson. Covariance matrix estimation errors and diagonal loading in adaptive arrays. IEEE Transactions on Aerospace and Electronic Systems, 24(4):397-401, July 1988. Keyword(s): SAR Processing, Beamforming, array processing, antenna phased arrays, antenna theory, digital simulation, eigenvalues and eigenfunctions, estimation theory, matrix algebraadapted antenna patterns, adaptive arrays, covariance matrix sample size, diagonal loading, distorted mainbeams, eigenvector decomposition, estimation errors, low-level interference, nulling, sample matrix inversion, sidelobes. [Abstract] [bibtex-entry]


  38. Ralph O. Schmidt. Multiple emitter location and signal parameter estimation. IEEE Transactions on Antennas and Propagation, 34(3):276-280, March 1986. Keyword(s): MUSIC, Multiple Signal Classification, null Adaptive arrays, DOA estimation, Direction-of-arrival estimation, Parameter estimation, Signal processing antennas. [Abstract] [bibtex-entry]


  39. Jack Capon. High-resolution frequency-wavenumber spectrum analysis. Proceedings of the IEEE, 57(8):1408-1418, August 1969. Keyword(s): SAR Processing, Capon, Capon beamforming, SAR Tomography, Tomography, super-resolution. [Abstract] [bibtex-entry]


Conference articles

  1. G. Krieger, T. Rommel, and A. Moreira. MIMO-SAR Tomography. In Proceedings of EUSAR 2016: 11th European Conference on Synthetic Aperture Radar, pages 1-6, June 2016. [Abstract] [bibtex-entry]


  2. Othmar Frey, Irena Hajnsek, and Urs Wegmuller. Spaceborne SAR Tomography in Urban Areas. In Proc. IEEE Int. Geosci. Remote Sens. Symp., Melbourne, AUS, pages 69-72, July 2013. Keyword(s): SAR Processing, SAR Tomography, Tomography, SVD, truncated SVD, tikhonov regularization, PSI, Persistent Scatterer Interferometry, Spaceborne SAR, InSAR, DInSAR, geophysical image processing, geophysical techniques, radar interferometry, synthetic aperture radar, Bucarest, PanGEO, ENVISAT, ASAR, ENVISAT ASAR, interferometric technique, Differential SAR Interferometry, single polarization SAR, terrain deformation phenomena, Coherence, Correlation, Interferometry, Synthetic aperture radar, Vectors, Coherence, Terrain deformation, multi-baseline. [Abstract] [bibtex-entry]


  3. O. Ponce, P. Prats, R. Scheiber, A. Reigber, and A. Moreira. First demonstration of 3-D holographic tomography with fully polarimetric multi-circular SAR at L-band. In Proc. IEEE Int. Geoscience and Remote Sensing Symp. - IGARSS, pages 1127-1130, July 2013. Keyword(s): airborne radar, array signal processing, compressed sensing, geophysical image processing, holography, optical focusing, optical tomography, radar imaging, radar polarimetry, radar resolution, synthetic aperture radar, transient response, 3D holographic tomography, 3D polarimetric holographic tomogram, 3D sidelobe reduction, BF, CS, DLR F-SAR airborne system, Earth analysis, IRF, Kaufbeuren Germany, L-band, MCSAR, beamforming, coherent 3D radar backscattering, compressive sensing, dry soil, forested area, fully polarimetric multicircular SAR, ice, impulse response function, multiangular measurement acquisition, temporal decorrelation, volume scatterer, Apertures, Bandwidth, Image resolution, Imaging, Synthetic aperture radar, Vegetation, Circular synthetic aperture radar (CSAR), compressive sensing (CS), fast factorized back-projection (FFBP), holographic tomography, polarimetric synthetic aperture radar (PolSAR). [bibtex-entry]


  4. Othmar Frey, Erich Meier, and Irena Hajnsek. Towards a more reliable estimation of forest parameters from polarimetric SAR tomography data. In Proc. IEEE Int. Geosci. Remote Sens. Symp., pages 3110-3113, 2012. Keyword(s): Airborne radar, Array signal processing, Capon, Capon beamformer, L-band, P-band, SAR processing, SAR tomography, beamforming, Focusing, forestry, interferometry, InSAR, multibaseline, multiple signal classification, MUSIC, polarimetry, Remote Sensing, synthetic aperture radar, SAR, scattering, three-dimensional imaging, 3-D imaging, time-domain back-projection, TDBP, tomography, Vegetation. [Abstract] [bibtex-entry]


  5. Othmar Frey, Erich Meier, and Irena Hajnsek. Tweaking baseline constellations for airborne SAR tomography and InSAR: an experimental study at L- and P-bands. In Proc. EUSAR 2012 - 9th European Conference on Synthetic Aperture Radar, pages 215-218, 2012. Keyword(s): Airborne radar, Array signal processing, Capon, Capon beamformer, L-band, P-band, SAR processing, SAR tomography, beamforming, Focusing, forestry, interferometry, InSAR, multibaseline, multiple signal classification, MUSIC, polarimetry, Remote Sensing, synthetic aperture radar, SAR, scattering, three-dimensional imaging, 3-D imaging, time-domain back-projection, TDBP, tomography, Vegetation. [Abstract] [bibtex-entry]


  6. O. Ponce, P. Prats, R. Scheiber, A. Reigber, and A. Moreira. Polarimetric 3-D reconstruction from multicircular SAR at P-band. In Proc. IEEE Int. Geoscience and Remote Sensing Symp, pages 3130-3133, July 2012. Keyword(s): array signal processing, calibration, image reconstruction, image resolution, radar imaging, radar polarimetry, singular value decomposition, synthetic aperture radar, 3D imaging, CSAR mode, DLR F-SAR system, SVD, backscattering profile, beamforming, compressive sensing, cone-shaped sidelobes, fast factorized back projection, holographic SAR tomogram, multicircular fully polarimetric SAR experiment, phase calibration method, polarimetric 3D reconstruction, polarimetric three-dimensional reconstruction, subwavelength resolution, Array signal processing, Calibration, Focusing, Image reconstruction, Image resolution, Synthetic aperture radar, Tomography, Circular SAR, PolSAR, holographic tomography, multicircular SAR. [bibtex-entry]


  7. Othmar Frey, Erich Meier, and Irena Hajnsek. On the sensitivity of measured backscattering properties to variations of incidence angle and baselines in tomographic SAR data. In Proc. Int. Asia-Pacific Conf. on Synthetic Aperture Radar (APSAR), pages 1-4, September 2011. Keyword(s): Airborne radar, Array signal processing, Capon, Capon beamformer, L-band, P-band, SAR processing, SAR tomography, beamforming, Focusing, forestry, interferometry, InSAR, multibaseline, multiple signal classification, MUSIC, polarimetry, Remote Sensing, sensitivity analysis, synthetic aperture radar, SAR, three-dimensional imaging, 3-D imaging, time-domain back-projection, TDBP, tomography, Vegetation. [Abstract] [bibtex-entry]


  8. J. L. Prater and T. M. Marston. Partial synthetic aperture beamformer. In Proc. OCEANS'11 MTS/IEEE KONA, pages 1-5, September 2011. Keyword(s): array signal processing, autonomous underwater vehicles, image resolution, sonar imaging, synthetic aperture sonar, AUV technology, SAS, autonomous underwater vehicle, nonlinear trajectories, partial synthetic aperture beamformer, Apertures, Array signal processing, Image resolution, Synthetic aperture sonar, Trajectory, Vehicles, autonomatic target recognition, beamforming. [bibtex-entry]


  9. Viet Thuy Vu, Thomas K. Sjogren, and Mats I. Pettersson. Fast backprojection algorithm for UWB bistatic SAR. In Proc. IEEE Radar Conf., pages 431-434, May 2011. Keyword(s): SAR Processing, Time-Domain Back-Projection, TDBP, Fast Factorized Back-Projection, FFBP, Back-Projection, UWB SAR, bistatic SAR, Motion Compensation, MoComp, UWB bistatic SAR, beamforming, bistatic fast backprojection algorithm, ground image plane, motion compensation, subaperture basis, subimage basis, time-domain characteristics, ultrawideband ultrawidebeam bistatic synthetic aperture radar, array signal processing, motion compensation, radar imaging, synthetic aperture radar, time-domain analysis, ultra wideband radar. [Abstract] [bibtex-entry]


  10. Othmar Frey and Erich Meier. 3D SAR Imaging of a Forest Using Airborne MB-SAR Data at L- and P-Band: Data Processing and Analysis. In Proc. EUSAR 2010 - 8th European Conference on Synthetic Aperture Radar, pages 166-169, 2010. Keyword(s): Airborne radar, Array signal processing, Capon, Capon beamformer, L-band, P-band, SAR processing, SAR tomography, beamforming, Focusing, forestry, interferometry, InSAR, multibaseline, multiple signal classification, MUSIC, polarimetry, Remote Sensing, synthetic aperture radar, SAR, three-dimensional imaging, 3-D imaging, time-domain back-projection, TDBP, tomography, Vegetation. [Abstract] [bibtex-entry]


  11. Othmar Frey and Erich Meier. Analyzing Tomographic SAR Data of a Forest With Respect to Frequency, Polarization, and Focusing Techniques. In Proc. IEEE Int. Geosci. Remote Sens. Symp., pages 150-153, July 2010. Note: Invited Paper. Keyword(s): Airborne radar, Array signal processing, Capon, Capon beamformer, L-band, P-band, SAR processing, SAR tomography, beamforming, Focusing, forestry, interferometry, InSAR, multibaseline, multiple signal classification, MUSIC, polarimetry, Remote Sensing, synthetic aperture radar, SAR, three-dimensional imaging, 3-D imaging, time-domain back-projection, TDBP, tomography, Vegetation. [Abstract] [bibtex-entry]


  12. Charles V. Jakowatz, Daniel E. Wahl, and David A. Yocky. A beamforming algorithm for bistatic SAR image formation. In Edmund G. Zelnio and Frederick D. Garber, editors, , volume 7699, pages 769902, 2010. SPIE. Keyword(s): SAR Processing, Bistatic SAR, Bistatic Spotlight-mode SAR, Autofocus, Autofocus in the TDBP Framework, Back-projection, Time-Domain Back-Projection, TDBP, Fast Back-projection, Fast Factorized Back-Projection, FFBP, Spotlight SAR, Spotlight-mode data, Beamforming. [bibtex-entry]


  13. Charles V. Jakowatz and Daniel E. Wahl. Considerations for autofocus of spotlight-mode SAR imagery created using a beamforming algorithm. In Edmund G. Zelnio and Frederick D. Garber, editors, , volume 7337, pages 73370A, 2009. SPIE. Keyword(s): SAR Processing, Autofocus, Autofocus in the TDBP Framework, Back-projection, Time-Domain Back-Projection, TDBP, Fast Back-projection, Fast-Factorized Back-Projection, FFBP, Spotlight SAR, Spotlight-mode data, Beamforming. [bibtex-entry]


  14. G. Krieger, I. Hajnsek, Konstantinos P. Papathanassiou, M. Eineder, M. Younis, F. De Zan, P. Prats, S. Huber, M. Werner, H. Fiedler, A. Freeman, P. Rosen, S. Hensley, W. Johnson, L. Veilleux, B. Grafmueller, R. Werninghaus, R. Bamler, and A. Moreira. The Tandem-L mission proposal: Monitoring Earth's dynamics with high resolution SAR interferometry. In Proc. IEEE Radar Conf., pages 1-6, May 2009. Keyword(s): Earth's Dynamics Monitoring, Tandem-L mission, advanced digital beamforming techniques, biomass inventories, glacier movement observations, global forest height, high data acquisition, high resolution SAR interferometry, innovative interferometric radar mission, millimetric displacements measurements, polarimetric radar mission, synthetic aperture radar, tectonic shifts, data acquisition, glaciology, radar interferometry, radar polarimetry, remote sensing by radar, synthetic aperture radar, tectonics, vegetation. [Abstract] [bibtex-entry]


  15. Alberto Moreira, Gerhard Krieger, Irena Hajnsek, Kostas Papathanassiou, Michael Eineder, Francesco De Zan, Marwan Younis, and Marian Werner. Tandem-L: Monitoring the Earth's Dynamics with InSAR and Pol-InSAR. In Proc. PolInSAR, Frascati, Italy (ESA SP-668), January 2009. Keyword(s): Earth's Dynamics Monitoring, Tandem-L mission, advanced digital beamforming techniques, biomass inventories, glacier movement observations, global forest height, high data acquisition, high resolution SAR interferometry, innovative interferometric radar mission, millimetric displacements measurements, polarimetric radar mission, synthetic aperture radar, tectonic shifts, data acquisition, glaciology, radar interferometry, radar polarimetry, remote sensing by radar, synthetic aperture radar, tectonics, vegetation. [Abstract] [bibtex-entry]


  16. Othmar Frey and Erich Meier. Combining Time-Domain Back-Projection and Capon Beamforming for Tomographic SAR Processing. In Proc. IEEE Int. Geosci. Remote Sens. Symp., pages 445-448, 2008. Keyword(s): SAR Processing, SAR Tomography, Tomographic Processing, Multi-Baseline SAR, Time-Domain Back-Projection, Back-Projection, E-SAR, P-Band, Forestry, Capon, Capon Beamforming, Superresolution. [Abstract] [bibtex-entry]


  17. Othmar Frey and Erich Meier. Tomographic Focusing by Combining Time-Domain Back-Projection and Multi-Looking Based Focusing Techniques. In Proc. EUSAR 2008 - 7th European Conference on Synthetic Aperture Radar, pages 73-76, 2008. Keyword(s): SAR Processing, SAR Tomography, Tomographic Processing, Multi-Baseline SAR, Time-Domain Back-Projection, Back-Projection, E-SAR, P-Band, Forestry, Capon, Capon Beamforming, Superresolution. [Abstract] [bibtex-entry]


  18. Charles V. Jakowatz, Daniel E. Wahl, and David A. Yocky. Beamforming as a foundation for spotlight-mode SAR image formation by backprojection. In Edmund G. Zelnio and Frederick D. Garber, editors, , volume 6970, pages 69700Q, 2008. SPIE. Keyword(s): SAR Processing, Back-projection, Time-Domain Back-Projection, TDBP, Fast Back-projection, Fast Factorized Back-Projection, FFBP, Spotlight SAR, Spotlight-mode data, Beamforming. [bibtex-entry]


  19. Matteo Nannini and Rolf Scheiber. A Time Domain Beamforming Algorithm for SAR Tomography. In Proc. of EUSAR 2006 - 6th European Conference on Synthetic Aperture Radar, 2006. Keyword(s): SAR Processing, SAR Tomography, Tomography, Time-Domain Beamforming, Phase Calibration, Baseline Calibration, Tomographic Baseline Calibration, Airborne SAR, E-SAR. [Abstract] [bibtex-entry]


  20. Stéphane Guillaso and Andreas Reigber. Polarimetric SAR Tomography (POLTOMSAR). In Proceedings of POLINSAR'05, Frascati, Italy, 2005. Keyword(s): SAR Processing, SAR Tomography, Tomography, MUSIC, Beamforming, Capon, Modified MUSIC, DoA, Direction of Arrival, Fourier, Pol-InSAR, L-Band, ESAR. [Abstract] [bibtex-entry]


  21. J. Li and P. Stoica. Versatile robust Capon beamforming: theory and applications. In Sensor Array and Multichannel Signal Processing Workshop Proceedings, 2004, pages 38-42, July 2004. Keyword(s): SAR Processing, SAR Tomography, Tomography, Capon, Robust Capon Beamforming, RCB, acoustic imaging, array signal processing, beam steering, channel bank filters, covariance matrices, ground penetrating radar, image resolution, interference (signal), landmine detection, radar imaging CBRCB, CPRCB, DCRCB, FLGPR imaging system, RCF, SCB, constant-beamwidth RCB, constant-powerwidth RCB, covariance fitting formulation, doubly constrained robust Capon beamformer, forward-looking ground penetrating radar, interference rejection, rank-deficient robust Capon filter-bank approach, resolution, spectral estimation, standard Capon beamformer, steering vector. [Abstract] [bibtex-entry]


  22. A. Jakobsson, F. Gini, and F. Lombardini. Layover solution in multibaseline INSAR using robust beamforming. In Signal Processing and Information Technology, 2003. ISSPIT 2003. Proceedings of the 3rd IEEE International Symposium on, pages 328-331, December 2003. [bibtex-entry]


  23. Seung-Mok Oh and James H. McClellan. Multiresolution Imaging with Quadtree Backprojection. In The Record of the Thirty-Fifth Asilomar Conference on Signals, Systems and Computers, 2001, volume 1, pages 105-109, November 2001. Keyword(s): SAR Processing, Back-Projection, Time-Domain Back-Projection, TDBP, Quadtree Processing, Divide and Conquer Methods. [Abstract] [bibtex-entry]


  24. T. Ekman, A. Jakobsson, and Petre Stoica. On the efficient implementation of the Capon spectral estimator. In 2000 10th European Signal Processing Conference, pages 1-4, Sep. 2000. Keyword(s): Capon, Spectral estimation, beamforming, Beamforming, Amplitude and phase preserving Capon, Covariance matrices, Frequency estimation, Estimation, Signal resolution, Signal to noise ratio, Vectors, Spectral analysis. [Abstract] [bibtex-entry]


  25. Svante Björklund and David Rejdemyhr. A MATLAB Toolbox for Radar Array Processing. In ISSPA '99, International Symposium on Signal Processing and its Applications, pages 547-550, 1999. Keyword(s): Radar Array Processing, MATLAB Toolbox for Radar Array Processing. [Abstract] [bibtex-entry]


  26. Z. She, D.A. Gray, R.E. Bogner, and J. Homer. Three-dimensional SAR imaging via multiple pass processing. In Geoscience and Remote Sensing Symposium, 1999. IGARSS '99 Proceedings. IEEE 1999 International, volume 5, pages 2389-2391, 1999. Keyword(s): SAR Processing, SAR Tomography, Tomography, geophysical techniques, radar imaging, remote sensing by radar, spaceborne radar, synthetic aperture radar, terrain mapping, topography (Earth), DFT, InSAR, SAR, SAR image, beamforming, eigenvector method, elevation, geophysical measurement technique, image registration, land surface topography, multiple pass processing, phase correction, radar remote sensing, subspace method, superresolution, three-dimensional imaging. [Abstract] [bibtex-entry]


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Last modified: Fri Feb 24 14:22:47 2023
Author: Othmar Frey, Earth Observation and Remote Sensing, Institute of Environmental Engineering, Swiss Federal Institute of Technology - ETH Zurich .

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