Publications of A. Austeng

Articles in journal or book chapters

1. A. E. A. Blomberg, T. O. Saebo, Roy E. Hansen, R. B. Pedersen, and A. Austeng. Automatic Detection of Marine Gas Seeps Using an Interferometric Sidescan Sonar. IEEE Journal of Oceanic Engineering, 42(3):590-602, July 2017. Keyword(s): Synthetic Aperture Sonar, SAS, carbon capture and storage, interferometry, oceanographic techniques, seafloor phenomena, sediments, sonar, underwater sound, volcanology, North Sea, acoustic backscatter properties, acoustic seep detection, automatic seep detection method, autonomous underwater vehicle, biogenic methane, gravel, interferometric sidescan sonar, man-made constructions, marine gas seep automatic detection, marine gas seep detection method, marine gas seep monitoring method, multibeam surveying, ocean greenhouse gases, pipelines, sandy seafloor, seafloor seeps, seafloor types, sediments, seep acoustical property, seep spatial property, sidescan surveying, signal processing techniques, silt, subseafloor CO2 storage sites, volcano CO2 release, water gas-filled bubbles, well heads, Acoustics, Backscatter, Damping, Monitoring, Resonant frequency, Sonar detection, Automatic leakage detection, carbon capture and storage (CCS) monitoring, coherence, gas seep detection, interferometric sonar, sidescan sonar. [Abstract] [bibtex-entry]



2. 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]



3. 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]



4. K. Landmark, A. H. Schistad Solberg, F. Albregtsen, A. Austeng, and Roy E. Hansen. A Radon-Transform-Based Image Noise Filter With Applications to Multibeam Bathymetry. IEEE Transactions on Geoscience and Remote Sensing, 53(11):6252-6273, November 2015. Keyword(s): Synthetic Aperture Sonar, SAS, Radon transforms, bathymetry, geophysical image processing, image denoising, image restoration, radar imaging, remote sensing by radar, synthetic aperture radar, Chebyshev approximation, Laplacian point spread function, denoised image, fast discrete Radon transform, geomorphological type statistical classification, image transform, invariant terrain features, invertible edge detection operator, linear-image-transform-based algorithm, motion-induced errors, motion-induced noise, multibeam bathymetry, original image, processed test images, radon-transform-based image noise filter, remote sensing data, second noise signature, standard low-pass filters, synthetic aperture radar images, track line artifacts, Approximation algorithms, Image edge detection, Noise, Noise reduction, Presses, Radio frequency, Transforms, Discrete transforms, image denoising, image restoration, iterative methods, remote sensing, sonar, terrain mapping. [Abstract] [bibtex-entry]



5. K. Landmark, A. H. Schistad Solberg, A. Austeng, and Roy E. Hansen. Bayesian Seabed Classification Using Angle-Dependent Backscatter Data From Multibeam Echo Sounders. IEEE Journal of Oceanic Engineering, 39(4):724-739, October 2014. Keyword(s): Synthetic Aperture Sonar, SAS, Bayes methods, Gaussian processes, acoustic wave scattering, approximation theory, backscatter, oceanographic techniques, pattern classification, piecewise constant techniques, sonar, statistical analysis, Bayesian seabed classification, Gaussian statistical model, North Sea data set, acoustical seabed classification, across-track spatial resolution, angle-dependent backscatter data, intrinsic scattering strength statistics, mapping seabed sediment, multibeam echo sounder, multibeam sonar data processing, piecewise constant function, piecewise function approximation, seabed scattering strength, spatial averaging, standard Bayesian theory, Bayes methods, Classification algorithms, Remote sensing, Sea floor, Sediments, Sonar, Underwater acoustics, Bayesian methods, classification algorithms, remote sensing, seafloor, sediments, sonar. [Abstract] [bibtex-entry]



6. 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]



7. 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]



8. 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]

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This collection of SAR literature is far from being complete.
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