Fraunhofer-Gesellschaft

Publica

Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.
20193D Reconstruction of Handheld Data by SAFT and the Influence of Measurement Inaccuracies
Krieg, Fabian; Kodera, Sayako; Kirchhof, Jan; Römer, Florian; Ihlow, Alexander; Lugin, Sergey; Osman, Ahmad; Del Galdo, Giovanni
Conference Paper
2019ADMM for ND Line Spectral Estimation using Grid-Free Compressive Sensing from Multiple Measurements with Applications to DOA Estimation
Semper, Sebastian; Römer, Florian
Conference Paper
2019Combining Matrix Design for 2D DoA Estimation with Compressive Antenna Arrays using Stochastic Gradient Descent
Pawar, Sankalp-Prakash; Semper, Sebastian; Römer, Florian
Conference Paper
2019Defect Detection from Compressed 3-D Ultrasonic Frequency Measurements
Semper, Sebastian; Kirchhof, Jan; Wagner, Christoph; Krieg, Fabian; Römer, Florian; Galdo, Giovanni del
Conference Paper
2019M-estimator based Chinese Remainder Theorem with few remainders using a Kroenecker product based mapping vector
Milanezi Junior, Jayme; Costa, João Paulo Carvalho Lustosa da; Römer, Florian; Miranda, Ricardo Kehrle; Marinho, Marco Antonio Marques; Galdo, Giovanni del
Journal Article
2019Parametric Reconstruction of Multi-Channel Data in Ultrasound NDT
Pérez Mejía, Eduardo José
: Römer, Florian (Betreuer); Kirchhof, Jan (Betreuer)
Master Thesis
2019Ein portabler, vielfältig einsetzbarer 3D-Positionierer für Synthetik-Apertur-Ultraschallmessungen in der ZfP
Groß, Philipp; Ihlow, Alexander; Böttcher, René; Bessert, Steffen; Pandey, Rick; Kirchhof, Jan; Krieg, Fabian; Römer, Florian; Osman, Ahmad; Galdo, Giovanni del
Conference Paper
2019SAFT Processing for Manually Acquired Ultrasonic Measurement Data with 3D SmartInspect
Krieg, Fabian; Kirchhof, Jan; Kodera, Sayako; Lugin, Sergey; Ihlow, Alexander; Schwender, Thomas; Galdo, Giovanni del; Römer, Florian; Osman, Ahmad
Journal Article
2019Total Focusing Method with Subsampling in Space and Frequency Domain for Ultrasound NDT
Pérez, Eduardo; Kirchhof, Jan; Semper, Sebastian; Krieg, Fabian; Römer, Florian
Conference Paper
2018Combining matrix design for 2D DoA estimation with compressive antenna arrays
Lavrenko, Anastasia; Pawar, Sankalp; Ibrahim, Mohammed; Römer, Florian; Galdo, Giovanni del; Thomä, Reiner S.
Conference Paper
2018Defect Detection from 3D Ultrasonic Measurements Using Matrix-free Sparse Recovery Algorithms
Semper, Sebastian; Kirchhof, Jan; Wagner, Christoph; Krieg, Fabian; Römer, Florian; Osman, Ahmad; Galdo, Giovanni del
Conference Paper
2018Design and prototyping of a 3-D positioner for ultrasound quality control measurements
Groß, Philipp; Ihlow, Alexander; Böttcher, René; Bessert, Steffen; Krieg, Fabian; Kirchhof, Jan; Römer, Florian; Osman, Ahmad; Galdo, Giovanni del
Conference Paper
2018GPU-accelerated Matrix-Free 3D Ultrasound Reconstruction for Nondestructive Testing
Kirchhof, Jan; Semper, Sebastian; Römer, Florian
Conference Paper
2018Progressive online 3-D SAFT processing by matrix structure exploitation
Krieg, Fabian; Pandey, Rick; Kirchhof, Jan; Ihlow, Alexander; Römer, Florian; Del Galdo, Giovanni; Osman, Ahmad
Conference Paper
2018SAFT Processing for Manually Acquired Ultrasonic Measurement Data with 3D Smartinspect
Krieg, Fabian; Lugin, Sergey; Kirchhof, Jan; Ihlow, Alexander; Schwender, Thomas; Galdo, Giovanni del; Römer, Florian; Osman, Ahmad
Conference Paper
2018Sensing Matrix Sensitivity to Random Gaussian Perturbations in Compressed Sensing
Lavrenko, Anastasia; Römer, Florian; Galdo, Giovanni del; Thomä, Reiner S.
Conference Paper
2018Sparsity Order Estimation From a Single Compressed Observation Vector
Semper, Sebastian; Römer, Florian; Hotz, Thomas; Galdo, Giovanni del
Journal Article
2018Vergleich und Anpassung von 3D-SAFT-Implementierungen im Zeit- und Frequenzbereich für die schnelle Grobblechprüfung
Krieg, Fabian; Kirchhof, Jan; Römer, Florian; Ihlow, Alexander; Del Galdo, Giovanni; Osman, Ahmad
Conference Paper
20173D-SAFT auf vorverarbeiteten Ultraschallsignalen - schneller messen bei verbesserter Auflösung
Kirchhof, Jan; Krieg, Fabian; Römer, Florian; Ihlow, Alexander; Osman, Ahmad; Galdo, Giovanni del
Abstract, Poster
2017Design and analysis of compressive antenna arrays for direction of arrival estimation
Ibrahim, Mohamed; Ramireddy, Venkatesh; Lavrenko, Anastasia; König, Jonas; Römer, Florian; Landmann, Markus; Großmann, Marcus; Galdo, Giovanni del; Thomä, Reiner S.
Journal Article
2017Differential SART for sub-Nyquist tomographic reconstruction in presence of misalignments
Römer, Florian; Großmann, Marcus; Schoen, Tobias; Gruber, Roland; Jung, Alexander; Oeckl, Steven; Galdo, Giovanni del
Conference Paper
2017Generalized least squares for ESPRIT-type direction of arrival estimation
Steinwandt, Jens; Römer, Florian; Haardt, Martin
Journal Article
2017Implementation issues of 3D SAFT in time and frequency domain for the fast inspection of heavy plates
Krieg, Fabian; Kirchhof, Jan; Römer, Florian; Ihlow, Alexander; Galdo, Giovanni del; Osman, Ahmad
Conference Paper
2017Low complexity performance assessment of a sensor array via unscented transformation
Ricardo Kehrle, M.; Costa, Joao Paulo C.L. da; Römer, Florian; Menezes, Leonardo R.A.X.; Galdo, Giovanni del; Almeida, Andre L.F. de
Journal Article
2017On the SNR variability in noisy compressed sensing
Lavrenko, Anastasia; Römer, Florian; Galdo, Giovanni del; Thomä, Reiner
Journal Article
2017Performance analysis of multi-dimensional ESPRIT-type algorithms for arbitrary and strictly non-circular sources with spatial smoothing
Steinwandt, Jens; Römer, Florian; Haardt, Martin; Galdo, Giovanni del
Journal Article
2017Sparse signal recovery for ultrasonic detection and reconstruction of shadowed flaws
Kirchhof, Jan; Krieg, Fabian; Römer, Florian; Ihlow, Alexander; Osman, Ahmad; Galdo, Giovanni del
Conference Paper
2017Tensor-based sparsity order estimation for big data applications
Liu, Kefei; Roemer, Florian; Costa, Joao Paulo C.L. da; Xiong, Jie; Yan, Yi-Sheng; Wang, Wen-Qin; Galdo, Giovanni del
Conference Paper
2016Analytical performance assessment of ESPRIT-type algorithms for coexisting circular and strictly non-circular signals
Steinwandt, Jens; Römer, Florian; Haardt, Martin
Conference Paper
2016Antenna array optimization strategies for robust direction finding
Großmann, Marcus; Ramireddy, Venkatesh; König, Jonas; Landmann, Markus; Römer, Florian; Galdo, Giovanni del; Perthold, Rainer
Conference Paper
2016Apparatus and Method for Providing an Image
Galdo, Giovanni del; Großmann, Marcus; Römer, Florian; Neubauer, Harald; Schöberl, Michael
Patent
2016Implementation of improved software defined radio modulation scheme and command and telemetry software interface for small satellites in 5G systems
Miranda, Ricardo Kehrle; Carvalho Lustosa da Costa, Joao Paulo; Römer, Florian; Raschke, Florian; Eishima, Takashi; Nakamura, Yuya; Galdo, Giovanni del
Conference Paper
2016Measurement matrix design for compressed sensing based time delay estimation
Römer, Florian; Ibrahim, Mohamed; Franke, Norbert; Hadaschik, Niels; Eidloth, Andreas; Sackenreuter, Benjamin; Galdo, Giovanni del
Conference Paper
2016On poisson compressed sensing and parameter estimation in sheet-of-Light surface scanning
Varatharaajan, Sutharshun; Römer, Florian; Kostka, Günther; Keil, Fabian; Uhrmann, Franz; Galdo, Giovanni del
Conference Paper
2016Procedures for integrating, testing and operating advanced microsatellites
Kehrle Miranda, Ricardo; Carvalho Lustosa da Costa, Joao Paulo; Eishima, Takashi; Nakamura, Yuya; Galdo, Giovanni del; Roemer, Florian
Journal Article, Conference Paper
2016Sparsity-based direction-of-arrival estimation for strictly non-circular sources
Steinwandt, Jens; Römer, Florian; Haardt, Martin
Conference Paper
2016Spatially resolved sub-Nyquist sensing of multiband signals with arbitrary antenna arrays
Lavrenko, Anastasia; Römer, Florian; Stein, Shahar; Cohen, Deborah; Galdo, Giovanni del; Eldar, Yonina C.
Conference Paper
2016Speeding up 3D SAFT for ultrasonic NDT by sparse deconvolution
Kirchhof, Jan; Krieg, Fabian; Römer, Florian; Ihlow, Alexander; Osman, Ahmad; Galdo, Giovanni del
Conference Paper
2016Temporal wireless synchronization with compressed opportunistic signals
Ibrahim, Mohamed; Roemer, Florian; Hadaschik, Niels; Tröger, Hans-Martin; Sackenreuter, Benjamin; Franke, Norbert; Robert, Joerg; Galdo, Giovanni del
Conference Paper
2015An adaptively focusing measurement design for compressed sensing based DOA estimation
Ibrahim, Mohamed; Römer, Florian; Galdo, Giovanni del
Conference Paper
2015Cycle time reduction in process integrated computed tomography using compressed sensing
Schön, Tobias; Römer, Florian; Oeckl, Steven; Großmann, Marcus; Gruber, Roland; Jung, Alexander; Galdo, Giovanni del
Conference Paper
2015Detection of time-varying support via rank evolution approach for effective joint sparse recovery
Lavrenko, Anastasia; Römer, Florian; Galdo, Giovanni del; Thomä, Reiner S.; Arikan, Orhan
Conference Paper
2015DoA estimation with reflectarray according to single pixel camera principle
Skoblikov, Sergii; Ibrahim, Mohamed; Römer, Florian; Thomä, Reiner S.; Galdo, Giovanni del
Conference Paper
2015Generalized sidelobe cancellers for multidimensional separable arrays
Miranda, Ricardo Kehrle; Costa, Joao Paulo Carvalho Lustosa da; Römer, Florian; Almeida, Andre L.F. de; Galdo, Giovanni del
Conference Paper
2015Numerical assessment of reflectarray applicability to CS-based DoA estimation
Skoblikov, Sergii; Ibrahim, Mohamed; Römer, Florian; Thomä, Reiner S.
Conference Paper
2015On the design of the measurement matrix for compressed sensing based DOA estimation
Ibrahim, Mohamed; Roemer, Florian; Galdo, Giovanni del
Conference Paper
2014Analytical performance assessment of multi-dimensional matrix- and tensor-based ESPRIT-type algorithms
Römer, Florian; Haardt, Martin; Galdo, Giovanni del
Journal Article
2014An empirical eigenvalue-threshold test for sparsity level estimation from compressed measurements
Lavrenko, Anastasia; Römer, Florian; Galdo, Giovanni del; Thomä, Reiner S.; Arikan, Orhan
Conference Paper
2014On the estimation of grid offsets in CS-based direction-of-arrival estimation
Ibrahim, Mohamed; Römer, Florian; Alieiev, Roman; Galdo, Giovanni del; Thomä, Reiner S.
Conference Paper
2014R-dimensional ESPRIT-type algorithms for strictly second-order non-circular sources and their performance analysis
Steinwandt, Jens; Roemer, Florian; Haardt, Martin; Galdo, Giovanni del
Journal Article
2014Tensor-based algorithms for learning multidimensional separable dictionaries
Römer, Florian; Galdo, Giovanni del; Haardt, Martin
Conference Paper