Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 9 of 9 for “"source reconstruction"”.
-
Spatial-temporal Source Reconstruction for Magnetoencephalography
… for MEG spatial-temporal current course reconstruction by introducing classical methods from the pattern recognition theory into medical imaging. These applications provide a new angle for research in MEG source reconstruction with the solution for source reconstruction at a single point, …
-
Radome Diagnostics: utilizing Source Reconstruction based on Surface Integral Representations
In this thesis, an inverse source reconstruction method with great potential in radome diagnostics is presented. A radome is a cover that encloses an antenna in order to protect it from environmental influences. Radome diagnostics are acquired in the design process, the delivery control, and in …
-
Zeitabhängige Stromdichterekonstruktion in einem standardisierten Finite-Elemente-Kopfmodell
The content of this work was the reconstruction of neuronal activity in a standardized headmodel under consideration of additional constraints on the time course of the solution. The thesis is divided into five chapters which describe the physiological basis of the neuronal generators of the …
-
A Compressed Sensing Approach to Detect Immobilized Nanoparticles Using Superparamagnetic Relaxometry
… inverse problem is ill posed. Current methods of source reconstruction rely on prior knowledge of the number of clusters of bound nanoparticles and their approximate locations, which is not known in clinical applications. In this work, we present a novel reconstruction algorithm based on …
-
Source reconstructions for IC radiated emissions based on magnitude-only near-field scanning
<p>"In this dissertation, a source reconstruction method is proposed to model the emission behavior of an IC by using magnitude-only information during near-field scanning. The phase-retrieval is accomplished during the back-forth iterations between two scanning planes of different heights. The …
-
Development of an Energy-Based Nearfield Acoustic Holography System
… numerous applications to obtain detailed noise source information and energy distributions on source surfaces. This thesis focuses on the continued development of the nearfield acoustic holography (NAH) approach. Conventional NAH consists of first capturing pressure data on a two-dimensional …
-
NEW PARADIGMS IN SOURCE CODING AND CHANNEL CODING
… in the \emph{universal} setting where the source distribution is unknown. However, the \emph{minimax} universal setting, which accounts for the worst-case performance of universal compression schemes over all source distributions, is the gold standard because it gives uniform convergence …
-
Reconstruction Methods for Optical Molecular Tomography
… and interaction with a micro-environment. The reconstruction of diffuse light sources is the central task of optical molecular tomography, and generally ill-posed and rather complex. The key element of optical molecular tomography includes the geometrical model, tissue properties, photon …