Sökning: "iterative detection"
Visar resultat 16 - 20 av 55 avhandlingar innehållade orden iterative detection.
16. Toward fully automatic earthquake detection and processing for tomography in the Hengill area
Sammanfattning : This thesis focuses on the automation of seismic data analysis, in particular, event detection, quality assessment of detected events, and preparation of an earthquake catalogue for seismic tomography.The developed event detector uses back-propagation and stacking of a seismic trace attribute with a known velocity model to detect and locate events. LÄS MER
17. Graph-based Analytics for Decentralized Online Social Networks
Sammanfattning : Decentralized Online Social Networks (DOSNs) have been introduced as a privacy preserving alternative to the existing online social networks. DOSNs remove the dependency on a centralized provider and operate as distributed information management platforms. LÄS MER
18. MICROWAVE IMAGING OF BIOLOGICAL TISSUES: applied toward breast tumor detection
Sammanfattning : Microwave imaging is an efficient diagnostic modality for non-invasively visualizing dielectric contrasts of non-metallic bodies. An increasing interest of this field has been observed during the last decades. Many application areas in biomedicine have been issued, recently the breast tumor detection application using microwave imaging. LÄS MER
19. Analysis of Relay Channels and Improved Iterative Decoders for Turbo-Coded Decode-and-Forward Relay Channels
Sammanfattning : Three-node relay channels which consist of a source, a relay and a destinationare considered in this thesis. In the first part, an uncoded relay channelis studied. LÄS MER
20. Iterative Detection, Decoding and Channel Parameter Estimation for Orthogonally Modulated DS-CDMA Systems
Sammanfattning : In this thesis, we study iterative detection, decoding and channel parameter estimation algorithms for asynchronous direct-sequence code division multiple access (DS-CDMA) systems employing orthogonal signalling formats and long scrambling codes. Multiuser detection techniques are widely used to combat the detrimental effects of multipath fading and multiple access interference (MAI), which are the major impairments in CDMA communication systems. LÄS MER