Sökning: "linear and non-linear principal component analysis"

Visar resultat 1 - 5 av 8 avhandlingar innehållade orden linear and non-linear principal component analysis.

1. 1. Signal Processing Techniques in Mobile Communication Systems : Signal Separation, Channel Estimation and Equalization

   Författare :Ronnie Landqvist; []
   Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; wireless mobile communications; signal processing; blind source separation; independent component analysis; beamforming; water filling; greedy algorithm; exact eigendecomposition; eigenvector algorithm; multiple-input multiple-output systems; the projection approximation subspace tracking algorithm with and without deflation; linear and non-linear principal component analysis; whitening; decorrelation; equalization; antenna arrays;

   Sammanfattning : Over the last decade there has been an explosive growth in the use of wireless mobile communications. Second generations systems are mature technologies now and third generation systems and beyond are being implemented and researched. LÄS MER

3. 2. Rock Mass Characterisation Using Drill Performance Monitoring : Problems, Analysis challenges and Limitations

   Författare :Rajib Ghosh; Luleå tekniska universitet; []
   Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Drift och underhållsteknik; Operation and Maintenance;

   Sammanfattning : In open pit mining, it is important to know as much information as possible about rock masses to be mined for more cost-effective mining operation. In rock engineering perspective, information about rock mass characteristics usually includes hardness of the rock, geological features, fractures, faults, ore contacts, water bearing stratum. LÄS MER

4. 3. Methodological Aspects of Clinical fMRI - Reliability Assessment and Development of Data Analysis Strategies

   Författare :Peter Mannfolk; Lund Medicinsk strålningsfysik; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Blood oxygenation level dependent fMRI Field map General linear model Locally linear embedding Resting-state;

   Sammanfattning : Functional magnetic resonance imaging (fMRI) is a non-invasive technique used for the investigation of brain function, which has found numerous applications within basic neuroscience. The introduction of fMRI as a clinical tool for presurgical mapping of pertinent cortical regions in patients with tumour or epilepsy has facilitated neurosurgical planning, and most likely reduced the risk of severe postoperative deficits. LÄS MER

5. 4. Rotor dynamical modelling and analysis of hydropower units

   Författare :Rolf Gustavsson; Luleå tekniska universitet; []
   Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Computer Aided Design; Datorstödd maskinkonstruktion;

   Sammanfattning : In almost all production of electricity the rotating machines serves as an important part of the energy transformation system. In hydropower units, a hydraulic turbine connected to a generator converts the potential energy stored in the water reservoir into electrical energy in the generator. LÄS MER

7. 5. A Study of the Interaction between the HOO radical and some small Molecules

   Författare :Thomas Svensson; Kemisk fysik; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Fysikalisk kemi; Physical chemistry; ab initio; peroxy radical; molecular interactions; matrix isolation; FTIR; infrared; Chemistry; Kemi;

   Sammanfattning : The HOO radical is a key intermediate in the atmosphere and is involved in a large number of reactions, including ozone loss cycles in the stratosphere and oxidation processes in the troposphere. This theses is a study of the HOO radical and its interactions with a number of small molecules that are present in the atmosphere. LÄS MER