Search for dissertations about: "sine wave"

Showing result 1 - 5 of 7 swedish dissertations containing the words sine wave.

2. 1. Dyslexics' phonological processing in relation to speech perception

   Author : Michael Gruber; Åke Olofsson; Peter Juslin; Maria Mody; Umeå universitet; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Psychology; Dyslexia; speech perception; phonological representations; reading acquisition; sine wave speech; phonological deficit hypothesis; phonological awareness; phonological processing; orthographic processing; Psykologi; Psychology; Psykologi; Psychology; psykologi;

   Abstract : The general aim of this thesis was to investigate phonological processing skills in dyslexic children and adults and their relation to speech perception. Dyslexia can be studied at various levels: at a biological, cognitive and an environmental level. This thesis mainly looks at environmental and cognitive factors. READ MORE

4. 2. Extremely Large Telescopes Optical Design and Wavefront Correction

   Author : Alexander Gontcharov; Astronomi - Genomgår omorganisation; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Astronomy; akustik; optik; Adaptive Optics; Extremely Large Telescopes; optical design methods; wavefront correction methods.; Electromagnetism; optics; Elektromagnetism; acoustics; space research; cosmic chemistry; Astronomi; rymdvetenskap; kosmisk kemi;

   Abstract : An overview of the state of art within optical design of large astronomical telescopes is given. Recent advances within the field are presented. The importance of new computer-controlled mirror-polishing methods is emphasized. READ MORE

5. 3. Nonlinear Approaches to Periodic Signal Modeling

   Author : Emad Abd-Elrady; Torsten Söderström; Torbjörn Wigren; Jonas Sjöberg; Uppsala universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cramer-Rao bounds; frequency estimation; identification; limit cycle; nonlinear systems; periodic signals; Wiener model structure; Signal processing; Signalbehandling; Signalbehandling; Signal Processing;

   Abstract : Periodic signal modeling plays an important role in different fields. The unifying theme of this thesis is using nonlinear techniques to model periodic signals. The suggested techniques utilize the user pre-knowledge about the signal waveform. This gives these techniques an advantage as compared to others that do not consider such priors. READ MORE

6. 4. ADC modeling for system simulation

   Author : Kalle Folkesson; Jacob Wikner; Linköpings universitet; []
   Keywords : TECHNOLOGY; TEKNIKVETENSKAP;

   Abstract : Modem system design methods are based on early system simulation using behavioral models. Since the ADC often is the critical component it is especially important that it is mode led correctly. Most current design environments use very simple ADC models such as ideal sampling and quantization to give a certain effective number of bits (ENOB). READ MORE

7. 5. Estimation Using Low Rank Signal Models

   Author : Kaushik Mahata; Torsten Söderström; Mats Viberg; Uppsala universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; parameter estimation; separable least squares; statistical analysis; viscoelasticity; subspace algorithms; spectrum estimation; Signal processing; Signalbehandling;

   Abstract : Designing estimators based on low rank signal models is a common practice in signal processing. Some of these estimators are designed to use a single low rank snapshot vector, while others employ multiple snapshots. This dissertation deals with both these cases in different contexts. READ MORE