Publications about 'sonar imaging'

Articles in journal or book chapters

1. 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]



2. S. A. V. Synnes, A. J. Hunter, Roy E. Hansen, T. O. Saebo, H. J. Callow, R. van Vossen, and A. Austeng. Wideband Synthetic Aperture Sonar Backprojection With Maximization of Wave Number Domain Support. IEEE Journal of Oceanic Engineering, 42(4):880-891, October 2017. Keyword(s): Synthetic Aperture Sonar, SAS, image filtering, image resolution, optimisation, sensor arrays, sonar imaging, synthetic aperture sonar, time-domain analysis, BP, SAS arrays, SAS image formation algorithms, TDBP access data, WD filtering, aspect-dependent scattering, data degradation, frequency-dependent scattering, generic SAS design, sensor data quality, spatial domain quality metrics, time domain backprojection access data, wave number domain counterpart, wave number domain support maximization, wideband SAS systems, wideband synthetic aperture sonar backprojection, widebeam synthetic aperture sonar backprojection, Image resolution, Imaging, Performance evaluation, Scattering, Sonar applications, Synthetic aperture sonar, Wideband, Along-track ambiguity, backprojection (BP) algorithm, grating lobes, synthetic aperture sonar (SAS), wideband sonar. [Abstract] [bibtex-entry]



3. T. G. Michael, B. Marchand, J. D. Tucker, T. M. Marston, D. D. Sternlicht, and M. R. Azimi-Sadjadi. Image-Based Automated Change Detection for Synthetic Aperture Sonar by Multistage Coregistration and Canonical Correlation Analysis. IEEE_J_OE, 41(3):592-612, July 2016. Keyword(s): backscatter, image registration, sonar imaging, synthetic aperture sonar, transforms, backscattered signals, canonical correlation analysis, image-based automated change detection, multistage coregistration, scale-invariant feature transform algorithm, scene coherence, Change detection algorithms, Coherence, Correlation, Navigation, Surges, Synthetic aperture sonar, Automated change detection, canonical correlation analysis (CCA), coherent change detection, coregistration, synthetic aperture sonar (SAS). [bibtex-entry]



4. Roy E. Hansen, A. P. Lyons, T. O. Saebo, H. J. Callow, and D. A. Cook. The Effect of Internal Wave-Related Features on Synthetic Aperture Sonar. IEEE Journal of Oceanic Engineering, 40(3):621-631, July 2015. Keyword(s): Synthetic Aperture Sonar, SAS, autonomous underwater vehicles, bathymetry, oceanographic techniques, sonar imaging, synthetic aperture sonar, (AUV), CMRE, Centre for Maritime Research and Experimentation, Elba Island Italy, FFI, HUGIN autonomous underwater vehicle, Kjeller Norway, La Spezia Italy, NATO research vessel, Norwegian Defence Research Establishment, RV, SAS bathymetry, SAS imaging, acoustical ray model, bolus, interferometric synthetic aperture sonar, internal wave-related feature effect, moving target analysis, multiaperture processing, multilook processing, repeat pass imaging, seabed topography, sound-speed structure, water column, Geometry, Imaging, Interferometry, Shape, Surfaces, Synthetic aperture sonar, Internal waves, refraction effects, synthetic aperture sonar. [Abstract] [bibtex-entry]



5. 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]



6. 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]



7. 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]



8. 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]

Conference articles

1. U. Herter, H. Schmaljohann, and T. Fickenscher. Autofocus performance on multi channel SAS images in the presence of overlapping phase centers. In OCEANS 2016 MTS/IEEE Monterey, pages 1-6, September 2016. Keyword(s): geophysical image processing, image restoration, optical focusing, sonar imaging, synthetic aperture sonar, DPCA, RPC, SPGA focusing, autofocus performance, blurred images, data driven micronavigation, displaced phase center antenna, echo signals, multichannel SAS images, navigation data, overlapping phase centers, raw echo data, redundant phase centers, residual phase errors, side lobe levels, strip-map phase gradient autofocus, synthetic aperture images, synthetic aperture sonar, Apertures, Approximation algorithms, Sonar navigation, Synthetic aperture sonar, Transmitters, aperture sonar, autofocus, multi-channel, strip-map. [Abstract] [bibtex-entry]



2. 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]



3. G. C. Eastland, T. M. Marston, and P. L. Marston. Evolution of acoustic feature timing and imaging for different cylinder exposures and applications of reversible SAS filtering. In Proc. OCEANS 2010 MTS/IEEE SEATTLE, pages 1-4, September 2010. Keyword(s): acoustic wave scattering, filtering theory, sonar imaging, synthetic aperture sonar, acoustic feature imaging, acoustic feature timing, acoustic paths, acoustic scattering, cylinder exposures, reversible SAS filtering, timing slope, Geometry, Imaging, Receivers, Scattering, Synthetic aperture sonar, Timing, Transducers. [bibtex-entry]



4. A. L. Espana, K. L. Williams, S. G. Kargl, M. Zampolli, T. M. Marston, and P. L. Marston. Measurements and modeling of the acoustic scattering from an aluminum pipe in the free field and in contact with a sand sediment. In Proc. OCEANS 2010 MTS/IEEE SEATTLE, pages 1-5, September 2010. Keyword(s): acoustic wave scattering, finite element analysis, sediments, sonar imaging, spatial filters, synthetic aperture sonar, FE calculation, SAS images, acoustic scattering measurement, acoustic scattering modeling, aluminum pipe, elastic contribution, elastic response, finite element model, flattened sand sediment, free field, fresh water pond, monostatic scattering, spatial filter boundary, specular response, synthetic aperture sonar techniques, target strength, Aluminum, Arrays, Finite element methods, Rails, Scattering, Sediments, Synthetic aperture sonar. [bibtex-entry]



5. T. M. Marston, P. L. Marston, and K. L. Williams. Scattering resonances, filtering with reversible SAS processing, and applications of quantitative ray theory. In Proc. OCEANS 2010 MTS/IEEE SEATTLE, pages 1-9, September 2010. Keyword(s): acoustic wave scattering, deconvolution, elasticity, feature extraction, geophysical image processing, image classification, sonar imaging, spatial filters, synthetic aperture sonar, SAS image processing, acoustic spectral content, hybrid processing technique, quantitative ray theory, scattering resonance, spatial filter, spectral feature, structural resonance, Aluminum, Approximation methods, Backscatter, Feature extraction, Scattering, Synthetic aperture sonar. [bibtex-entry]



6. G. Shippey, S. Banks, and J. Pihl. SAS image reconstruction using Fast Polar Back Projection: comparisons with Fast Factored Back Projection and Fourier-domain imaging. In Oceans 2005 - Europe, volume 1, pages 96-101, June 2005. Keyword(s): SAR Processing, Time-Domain Back-Projection, TDBP, Fast-Factorized Back-Projection, FFBP, Fast Polar Back-Projection, FPBP, fast Fourier transforms, image reconstruction, radar imaging, sonar imaging, synthetic aperture radar, synthetic aperture sonar FFBP, Fast Factored Back Projection, Fast Polar Back Projection, Fourier-domain imaging, SAS image reconstruction, Synthetic Aperture Radar, Synthetic Aperture Sonar, autopositioning purposes, azimuth sidelobe level, computation time reduction, intermediate physical aperture images, multielement sonar arrays, nonlinear platform trajectories, preset approximation error, review, standard FFT-based method, time-domain methods, ultra-wideband airborne SAR, wide bandwidths, wide swaths. [Abstract] [bibtex-entry]

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This collection of SAR literature is far from being complete.
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