Sökning: "echo"
Visar resultat 1 - 5 av 191 avhandlingar innehållade ordet echo.
1. On System Identification and Acoustic Echo Cancellation
Sammanfattning : The topic of acoustic echo cancellation has received a lot of interest over the years. Even though the topic is relatively old, the increasing demand for hands-free telephony has made it more important than ever before. LÄS MER
2. Nuclear Magnetic Resonance for Diffusion Imaging Development and evaluation of spin-echo-based pulse sequences for in vivo studies of water self-diffusion
Sammanfattning : The interest in diffusion imaging with nuclear magnetic resonance techniques has increased during the last few years. The main reason is the possibility of early diagnosis of acute ischaemic stroke, at a time when conventional MR techniques and computerised tomography fail. LÄS MER
3. System Modeling Using Basis Functions and Application to Echo Cancelation
Sammanfattning : This thesis concerns modeling of linear and nonlinear dynamic systems, where the applied models can be described by basis function expansions. In the first part of the thesis, the investigated model (or filter) structures and parameter estimation algorithms are described. LÄS MER
4. Acoustic Noise and Echo Cancelling : Microphone Array Methods and Applications
Sammanfattning : This Licentiate thesis is divided into three parts corresponding to three different papers. There is one research report, one conference paper and one submitted journal paper. All three parts deal with acoustic echo and/or noise cancelling problems when using adaptive microphone arrays. LÄS MER
5. Dissertatio physica, de sono reflexo, qvam, indulg. ampliss. ord. philos. ad acad. Ups. præside mag. Samuele Duræo ... pro solitis in phil. honoribus in auditorio Gustaviano majori die XVIII Junii anni MDCCLXVI t. a. m. s. publice defendet stipendiarius regius, Wolcker L. Hagman, Nericus
Sammanfattning : .... LÄS MER