Search for dissertations about: "Michael A. Jensen"

Found 4 swedish dissertations containing the words Michael A. Jensen.

  2. 1. On the Antenna-Channel Interactions: A Spherical Vector Wave Expansion Approach

    Author : Andres Alayon Glazunov; Andreas F. Molisch; Michael A. Jensen; Institutionen för elektro- och informationsteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; antenna-channel interactions; wireless channels; MIMO; Antennas; propagation; spherical vector waves;

    Abstract : The main focus of this thesis is the analysis of the interactions between antennas and channels where electromagnetic fields play a central role. Our goal has been to devise a general framework to enable a clear separation of the properties of the propagation channel from the influence of the antennas at the same time as it provides a common ground for a joint characterization of their properties. READ MORE

  4. 2. Characterization of Polypeptides by Tandem Mass Spectrometry Using Complementary Fragmentation Techniques

    Author : Michael Lund Nielsen; Roman A. Zubarev; Per Andrén; Ole Nörregaard Jensen; Uppsala universitet; []
    Keywords : Analytical chemistry; Mass Spectrometry; Electron capture dissociation ECD ; Collision-activated dissociation CAD ; Proteomics; Post-translational modifications; De Novo sequencing; Bioinformatics; Analytisk kemi;

    Abstract : In the growing field of proteomics identification of proteins by tandem mass spectrometry (MS/MS) is performed by matching experimental mass spectra against calculated spectra of all possible peptides in a protein database. One problem with this approach is the false-positive identifications. READ MORE

  5. 3. On MIMO Systems and Adaptive Arrays for Wireless Communication : Analysis and Practical Aspects

    Author : Mattias Wennström; Michael A. Jensen; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Systemteknik; antenna array; calibration; MIMO system; flat fading; non-linear amplifier; switched parasitic antenna; analog beamformer; adaptive antenna testbed; Systemteknik; Systems engineering; Systemteknik; Signal Processing; signalbehandling;

    Abstract : This thesis is concerned with the use of multiple antenna elements in wireless communication over frequency non-selective radio channels. Both measurement results and theoretical analysis are presented. New transmit strategies are derived and compared to existing transmit strategies, such as beamforming and space-time block coding (STBC). READ MORE

  6. 4. Breathe (in the air) : pulmonary immunology in multiple sclerosis

    Author : Michael Hagemann-Jensen; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Multiple Sclerosis (MS) is a demyelinating disease of the central nervous system, with etiology still unknown. MS is thought to arise from a complex interplay between genetic and environmental factors. READ MORE